BGP Routing: 2011-04-03

The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Saturday, April 9, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 10 Apr, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 356728
Prefixes after maximum aggregation: 161304
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 174425
Total ASes present in the Internet Routing Table: 37226
Prefixes per ASN: 9.58
Origin-only ASes present in the Internet Routing Table: 31246
Origin ASes announcing only one prefix: 14979
Transit ASes present in the Internet Routing Table: 4998
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2862
Unregistered ASNs in the Routing Table: 269
Number of 32-bit ASNs allocated by the RIRs: 1275
Number of 32-bit ASNs visible in the Routing Table: 982
Prefixes from 32-bit ASNs in the Routing Table: 2193
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 189
Number of addresses announced to Internet: 2405892656
Equivalent to 143 /8s, 103 /16s and 2 /24s
Percentage of available address space announced: 64.9
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.3
Total number of prefixes smaller than registry allocations: 147463

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 85712
Total APNIC prefixes after maximum aggregation: 28812
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82793
Unique aggregates announced from the APNIC address blocks: 36886
APNIC Region origin ASes present in the Internet Routing Table: 4381
APNIC Prefixes per ASN: 18.90
APNIC Region origin ASes announcing only one prefix: 1233
APNIC Region transit ASes present in the Internet Routing Table: 694
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 605821889
Equivalent to 36 /8s, 28 /16s and 27 /24s
Percentage of available APNIC address space announced: 76.8

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8,
182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 141837
Total ARIN prefixes after maximum aggregation: 72896
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114033
Unique aggregates announced from the ARIN address blocks: 45063
ARIN Region origin ASes present in the Internet Routing Table: 14304
ARIN Prefixes per ASN: 7.97
ARIN Region origin ASes announcing only one prefix: 5445
ARIN Region transit ASes present in the Internet Routing Table: 1463
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN region 32-bit ASNs visible in the Routing Table: 11
Number of ARIN addresses announced to Internet: 797890328
Equivalent to 47 /8s, 142 /16s and 215 /24s
Percentage of available ARIN address space announced: 63.4

ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 86596
Total RIPE prefixes after maximum aggregation: 47869
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 79072
Unique aggregates announced from the RIPE address blocks: 50232
RIPE Region origin ASes present in the Internet Routing Table: 15504
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7739
RIPE Region transit ASes present in the Internet Routing Table: 2417
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 727
Number of RIPE addresses announced to Internet: 464314676
Equivalent to 27 /8s, 172 /16s and 225 /24s
Percentage of available RIPE address space announced: 74.8

RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
196608-198655
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 32368
Total LACNIC prefixes after maximum aggregation: 7426
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31374
Unique aggregates announced from the LACNIC address blocks: 16309
LACNIC Region origin ASes present in the Internet Routing Table: 1435
LACNIC Prefixes per ASN: 21.86
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 192
Number of LACNIC addresses announced to Internet: 81789324
Equivalent to 4 /8s, 224 /16s and 1 /24s
Percentage of available LACNIC address space announced: 54.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7678
Total AfriNIC prefixes after maximum aggregation: 1835
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6034
Unique aggregates announced from the AfriNIC address blocks: 1861
AfriNIC Region origin ASes present in the Internet Routing Table: 443
AfriNIC Prefixes per ASN: 13.62
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22715136
Equivalent to 1 /8s, 90 /16s and 155 /24s
Percentage of available AfriNIC address space announced: 33.8

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1876 9507 605 Korea Telecom (KIX)
7545 1543 301 82 TPG Internet Pty Ltd
17974 1456 480 33 PT TELEKOMUNIKASI INDONESIA
4755 1441 378 166 Videsh Sanchar Nigam Ltd. Aut
24560 1137 322 203 Bharti Airtel Ltd.
9583 1054 77 494 Sify Limited
4808 1017 2081 288 CNCGROUP IP network: China169
9829 1006 869 51 BSNL National Internet Backbo
17488 957 162 98 Hathway IP Over Cable Interne
18101 936 116 140 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3665 3822 255 bellsouth.net, inc.
4323 2531 1104 394 Time Warner Telecom
1785 1790 681 127 AppliedTheory Corporation
18566 1642 335 197 Covad Communications
6478 1612 306 37 AT&T Worldnet Services
20115 1587 1555 641 Charter Communications
19262 1491 4948 297 Verizon Global Networks
7018 1353 6945 881 AT&T WorldNet Services
22773 1293 2865 84 Cox Communications, Inc.
2386 1279 537 921 AT&T Data Communications Serv

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
286 1007 796 169 KPNQwest Backbone AS
9116 544 326 31 Goldenlines main autonomous s
6830 516 1780 319 UPC Distribution Services
3292 509 2013 392 TDC Tele Danmark
34984 495 97 188 Tellcom Iletisim Hizmetleri
29049 468 34 34 AzerSat LLC.
8866 447 134 26 Bulgarian Telecommunication C
20940 446 129 341 Akamai Technologies European
3320 419 7607 365 Deutsche Telekom AG
8551 405 355 38 Bezeq International

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1418 263 155 TVCABLE BOGOTA
28573 1271 972 86 Types of queries are: POCs, o
8151 1241 2665 366 Uninet S.A. de C.V.
6503 950 354 65 AVANTEL, S.A.
7303 923 465 148 Telecom Argentina Stet-France
14420 645 52 89 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 518 225 97 COLOMBIA TELECOMUNICACIONES S
27947 491 54 49 Telconet S.A
11172 487 99 81 Alestra

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 838 445 11 TEDATA
24863 776 147 39 LINKdotNET AS number
15475 421 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 231 215 12 Itissalat Al-MAGHRIB
24835 231 78 10 RAYA Telecom - Egypt
33776 212 12 8 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 151 441 87 Johnnic e-Ventures

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3665 3822 255 bellsouth.net, inc.
4323 2531 1104 394 Time Warner Telecom
23456 2193 634 1183 >>UNKNOWN<<
4766 1876 9507 605 Korea Telecom (KIX)
1785 1790 681 127 AppliedTheory Corporation
18566 1642 335 197 Covad Communications
6478 1612 306 37 AT&T Worldnet Services
20115 1587 1555 641 Charter Communications
7545 1543 301 82 TPG Internet Pty Ltd
19262 1491 4948 297 Verizon Global Networks

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2531 2137 Time Warner Telecom
1785 1790 1663 AppliedTheory Corporation
6478 1612 1575 AT&T Worldnet Services
7545 1543 1461 TPG Internet Pty Ltd
18566 1642 1445 Covad Communications
17974 1456 1423 PT TELEKOMUNIKASI INDONESIA
4755 1441 1275 Videsh Sanchar Nigam Ltd. Aut
4766 1876 1271 Korea Telecom (KIX)
10620 1418 1263 TVCABLE BOGOTA
11492 1267 1252 Cable One

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
44559 UNALLOCATED 2.56.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.57.0.0/19 29632 The NetAssist autono
44559 UNALLOCATED 2.57.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.58.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.59.0.0/16 29632 The NetAssist autono
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
1.3.0.0/16 38639 NTT Communications Corporatio
2.56.0.0/16 44559 >>UNKNOWN<<
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.3.96.0/21 35470 XL Network
31.3.120.0/21 31577 ProRed Comunicaciones Autonom

Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:26 /11:75 /12:220
/13:452 /14:776 /15:1401 /16:11698 /17:5961 /18:9753
/19:19624 /20:25657 /21:25793 /22:33979 /23:32779 /24:185906
/25:362 /26:350 /27:167 /28:175 /29:200 /30:649
/31:59 /32:634

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2262 3665 bellsouth.net, inc.
18566 1620 1642 Covad Communications
6478 1566 1612 AT&T Worldnet Services
4323 1358 2531 Time Warner Telecom
10620 1308 1418 TVCABLE BOGOTA
11492 1216 1267 Cable One
23456 1136 2193 >>UNKNOWN<<
7011 1061 1161 Citizens Utilities
1785 1057 1790 AppliedTheory Corporation
286 870 1007 KPNQwest Backbone AS

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:294 2:73 4:18 5:1 8:350 12:1987
13:1 14:434 15:15 16:3 17:8 20:9
23:5 24:1615 27:718 31:214 32:126 33:3
34:2 37:1 38:749 39:1 40:101 41:2378
42:1 44:3 46:809 47:4 49:171 50:220
52:13 55:3 56:2 57:40 58:845 59:491
60:406 61:1167 62:1020 63:1932 64:3917 65:2335
66:4335 67:1825 68:1255 69:2977 70:743 71:349
72:1932 73:3 74:2385 75:298 76:340 77:891
78:694 79:471 80:1097 81:826 82:521 83:460
84:666 85:1063 86:605 87:799 88:346 89:1616
90:178 91:3679 92:501 93:1061 94:1289 95:793
96:448 97:252 98:825 99:35 101:61 106:2
107:4 108:78 109:951 110:529 111:683 112:324
113:386 114:517 115:706 116:947 117:674 118:774
119:1131 120:289 121:716 122:1621 123:1073 124:1284
125:1258 128:266 129:170 130:173 131:564 132:102
133:20 134:218 135:49 136:212 137:142 138:302
139:116 140:485 141:174 142:380 143:390 144:475
145:53 146:442 147:213 148:587 149:263 150:168
151:187 152:302 153:180 154:3 155:393 156:189
157:355 158:132 159:381 160:317 161:243 162:277
163:163 164:489 165:368 166:510 167:418 168:724
169:153 170:777 171:74 172:1 173:1273 174:505
175:350 177:78 178:853 180:808 181:7 182:414
183:200 184:321 185:1 186:1125 187:827 188:937
189:1018 190:4833 192:5804 193:4832 194:3520 195:3093
196:1215 197:17 198:3591 199:3906 200:5535 201:1484
202:8379 203:8475 204:4133 205:2323 206:2663 207:3003
208:3943 209:3514 210:2727 211:1366 212:2031 213:1771
214:727 215:66 216:4882 217:1648 218:562 219:387
220:1196 221:481 222:312 223:119

End of report
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[bgp-stats] Routing Table Report - London view

* BGP Routing Table Analysis Reports *
Routing Table Report 08:00 +10GMT Sun 10 Apr, 2011

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/

Analysis Summary
----------------

BGP routing table entries examined: 347597
Prefixes after maximum aggregation: 158087
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 174540
Total ASes present in the Internet Routing Table: 36074
Prefixes per ASN: 9.64
Origin-only ASes present in the Internet Routing Table: 31200
Origin ASes announcing only one prefix: 15016
Transit ASes present in the Internet Routing Table: 4874
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1961
Unregistered ASNs in the Routing Table: 352
Number of 32-bit ASNs allocated by the RIRs: 1275
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2177
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 179
Number of addresses announced to Internet: 2422041088
Equivalent to 144 /8s, 93 /16s and 106 /24s
Percentage of available address space announced: 65.3
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.3
Total number of prefixes smaller than registry allocations: 142353

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 83879
Total APNIC prefixes after maximum aggregation: 28513
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81680
Unique aggregates announced from the APNIC address blocks: 36767
APNIC Region origin ASes present in the Internet Routing Table: 4339
APNIC Prefixes per ASN: 18.82
APNIC Region origin ASes announcing only one prefix: 1226
APNIC Region transit ASes present in the Internet Routing Table: 665
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 604580096
Equivalent to 36 /8s, 9 /16s and 41 /24s
Percentage of available APNIC address space announced: 76.7

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 137465
Total ARIN prefixes after maximum aggregation: 70404
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110304
Unique aggregates announced from the ARIN address blocks: 45110
ARIN Region origin ASes present in the Internet Routing Table: 14212
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5439
ARIN Region transit ASes present in the Internet Routing Table: 1415
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 797835008
Equivalent to 47 /8s, 141 /16s and 255 /24s
Percentage of available ARIN address space announced: 63.4

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 83752
Total RIPE prefixes after maximum aggregation: 47579
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76999
Unique aggregates announced from the RIPE address blocks: 50593
RIPE Region origin ASes present in the Internet Routing Table: 15486
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7785
RIPE Region transit ASes present in the Internet Routing Table: 2391
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 464157952
Equivalent to 27 /8s, 170 /16s and 125 /24s
Percentage of available RIPE address space announced: 74.8

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 31928
Total LACNIC prefixes after maximum aggregation: 7309
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31058
Unique aggregates announced from the LACNIC address blocks: 16304
LACNIC Region origin ASes present in the Internet Routing Table: 1424
LACNIC Prefixes per ASN: 21.81
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 81740288
Equivalent to 4 /8s, 223 /16s and 66 /24s
Percentage of available LACNIC address space announced: 54.1

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7651
Total AfriNIC prefixes after maximum aggregation: 1826
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6019
Unique aggregates announced from the AfriNIC address blocks: 1856
AfriNIC Region origin ASes present in the Internet Routing Table: 442
AfriNIC Prefixes per ASN: 13.62
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 22713088
Equivalent to 1 /8s, 90 /16s and 147 /24s
Percentage of available AfriNIC address space announced: 33.8

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1876 9507 605 Korea Telecom (KIX)
7545 1544 301 83 TPG Internet Pty Ltd
17974 1452 472 34 PT Telekomunikasi Indonesia
4755 1442 638 169 TATA Communications formerly
24560 1137 322 203 Bharti Airtel Ltd., Telemedia
9583 1052 77 495 Sify Limited
9829 1006 869 51 National Internet Backbone
4808 949 2028 277 CNCGROUP IP network China169
17488 940 162 98 Hathway IP Over Cable Interne
18101 935 116 139 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3667 3822 256 BellSouth.net Inc.
4323 2540 1106 397 tw telecom holdings, inc.
1785 1793 681 130 PaeTec Communications, Inc.
18566 1633 333 200 Covad Communications Co.
6478 1612 306 37 AT&T Services, Inc.
20115 1536 1551 641 Charter Communications
19262 1490 4948 296 Verizon Online LLC
7018 1364 6962 892 AT&T Services, Inc.
22773 1293 2865 84 Cox Communications Inc.
2386 1281 538 922 AT&T Data Communications Serv

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
9116 541 326 30 Goldenlines main autonomous s
6830 513 1780 318 UPC Broadband
34984 495 97 188 BILISIM TELEKOM
29049 468 34 34 AzerSat LLC.
3292 455 2013 392 TDC Data Networks
8866 446 134 26 Bulgarian Telecommunication C
20940 445 129 341 Akamai Technologies European
3320 418 7607 364 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 401 577 6 France Telecom Espana SA

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1418 263 155 Types of queries are: POCs, o
28573 1253 972 86 Types of queries are: POCs, o
8151 1231 2665 364 Uninet S.A. de C.V.
6503 949 354 65 Axtel, S.A.B. de C.V.
7303 900 464 136 Telecom Argentina S.A.
14420 645 52 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 517 225 97 Types of queries are: POCs, o
11172 485 99 81 Alestra, S. de R.L. de C.V.
7738 479 922 30 Telecomunicacoes da Bahia S.A

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 836 445 11 TEDATA
24863 773 147 37 LINKdotNET AS number
15475 425 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 231 215 12 Itissalat Al-MAGHRIB
24835 231 78 10 RAYA Telecom - Egypt
33776 212 12 8 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 147 441 86 MTN Network Solutions

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3667 3822 256 BellSouth.net Inc.
4323 2540 1106 397 tw telecom holdings, inc.
23456 2177 634 1178 32-bit ASN transition
4766 1876 9507 605 Korea Telecom (KIX)
1785 1793 681 130 PaeTec Communications, Inc.
18566 1633 333 200 Covad Communications Co.
6478 1612 306 37 AT&T Services, Inc.
7545 1544 301 83 TPG Internet Pty Ltd
20115 1536 1551 641 Charter Communications
19262 1490 4948 296 Verizon Online LLC

Complete listing at http://thyme.rand.apnic.net/london/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2540 2143 tw telecom holdings, inc.
1785 1793 1663 PaeTec Communications, Inc.
6478 1612 1575 AT&T Services, Inc.
7545 1544 1461 TPG Internet Pty Ltd
18566 1633 1433 Covad Communications Co.
17974 1452 1418 PT Telekomunikasi Indonesia
4755 1442 1273 TATA Communications formerly
4766 1876 1271 Korea Telecom (KIX)
10620 1418 1263 Types of queries are: POCs, o
11492 1262 1247 CABLE ONE, INC.

Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 65535 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut

Complete listing at http://thyme.rand.apnic.net/london/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
1.3.0.0/16 38639 for assignment to JPNIC membe
2.56.0.0/16 44559 E-Rent LLC
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.3.96.0/21 35470 XL Network
31.3.120.0/21 31577 ProRed Comunicaciones Autonom

Complete listing at http://thyme.rand.apnic.net/london/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:12 /10:26 /11:74 /12:219
/13:452 /14:768 /15:1373 /16:11557 /17:5700 /18:9392
/19:19204 /20:25019 /21:25356 /22:33455 /23:32011 /24:182483
/25:11 /26:17 /27:24 /28:156 /29:97 /30:52
/31:0 /32:119

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2263 3667 BellSouth.net Inc.
18566 1611 1633 Covad Communications Co.
6478 1566 1612 AT&T Services, Inc.
4323 1360 2540 tw telecom holdings, inc.
10620 1308 1418 Types of queries are: POCs, o
11492 1211 1262 CABLE ONE, INC.
23456 1124 2177 32-bit ASN transition
7011 1061 1161 Frontier Communications of Am
1785 1057 1793 PaeTec Communications, Inc.
22773 837 1293 Cox Communications Inc.

Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:293 2:53 4:14 5:1 8:349 12:1982
13:1 14:420 15:15 16:3 17:8 20:9
23:5 24:1596 27:712 31:214 32:55 33:3
34:2 37:1 38:745 39:1 40:101 41:2374
42:1 44:3 46:810 47:4 49:171 50:218
52:13 55:3 56:2 57:29 58:794 59:479
60:404 61:1062 62:1005 63:1914 64:3858 65:2330
66:4298 67:1799 68:1078 69:2873 70:697 71:343
72:1898 73:1 74:2322 75:284 76:331 77:851
78:686 79:460 80:1085 81:825 82:513 83:461
84:647 85:1046 86:555 87:771 88:340 89:1583
90:178 91:3679 92:499 93:1055 94:1260 95:781
96:443 97:252 98:816 99:35 101:53 106:2
107:4 108:78 109:942 110:529 111:675 112:314
113:384 114:493 115:699 116:916 117:671 118:762
119:1122 120:287 121:690 122:1618 123:1057 124:1261
125:1254 128:212 129:161 130:167 131:560 132:102
133:20 134:208 135:49 136:210 137:139 138:301
139:102 140:465 141:174 142:361 143:387 144:472
145:53 146:438 147:202 148:579 149:262 150:160
151:187 152:300 153:180 154:2 155:393 156:186
157:325 158:132 159:374 160:316 161:234 162:276
163:154 164:489 165:348 166:510 167:418 168:718
169:151 170:773 171:74 172:1 173:1255 174:501
175:341 177:78 178:839 180:798 181:7 182:401
183:200 184:240 185:1 186:1123 187:825 188:933
189:1017 190:4809 192:5724 193:4811 194:3468 195:2948
196:1206 197:17 198:3521 199:3870 200:5513 201:1468
202:8137 203:8362 204:4057 205:2296 206:2515 207:2924
208:3909 209:3469 210:2648 211:1355 212:1989 213:1715
214:727 215:66 216:4832 217:1640 218:545 219:384
220:1189 221:462 222:306 223:104

End of report
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[bgp-stats] Routing Table Report - Japan view

* BGP Routing Table Analysis Reports *
Routing Table Report 04:00 +10GMT Sun 10 Apr, 2011

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined: 352412
Prefixes after maximum aggregation: 160023
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 174656
Total ASes present in the Internet Routing Table: 37201
Prefixes per ASN: 9.47
Origin-only ASes present in the Internet Routing Table: 31226
Origin ASes announcing only one prefix: 15021
Transit ASes present in the Internet Routing Table: 5001
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 555
Unregistered ASNs in the Routing Table: 245
Number of 32-bit ASNs allocated by the RIRs: 1275
Number of 32-bit ASNs visible in the Routing Table: 974
Prefixes from 32-bit ASNs in the Routing Table: 2171
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 178
Number of addresses announced to Internet: 2405185216
Equivalent to 143 /8s, 92 /16s and 54 /24s
Percentage of available address space announced: 64.9
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.3
Total number of prefixes smaller than registry allocations: 145943

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 87774
Total APNIC prefixes after maximum aggregation: 29863
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 84752
Unique aggregates announced from the APNIC address blocks: 36832
APNIC Region origin ASes present in the Internet Routing Table: 4391
APNIC Prefixes per ASN: 19.30
APNIC Region origin ASes announcing only one prefix: 1218
APNIC Region transit ASes present in the Internet Routing Table: 697
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 605798944
Equivalent to 36 /8s, 27 /16s and 194 /24s
Percentage of available APNIC address space announced: 76.8

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 138869
Total ARIN prefixes after maximum aggregation: 70872
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111397
Unique aggregates announced from the ARIN address blocks: 45134
ARIN Region origin ASes present in the Internet Routing Table: 14286
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5452
ARIN Region transit ASes present in the Internet Routing Table: 1487
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 11
Number of ARIN addresses announced to Internet: 797844224
Equivalent to 47 /8s, 142 /16s and 35 /24s
Percentage of available ARIN address space announced: 63.4

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 83370
Total RIPE prefixes after maximum aggregation: 47597
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 76648
Unique aggregates announced from the RIPE address blocks: 50566
RIPE Region origin ASes present in the Internet Routing Table: 15491
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7793
RIPE Region transit ASes present in the Internet Routing Table: 2412
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 719
Number of RIPE addresses announced to Internet: 463996032
Equivalent to 27 /8s, 168 /16s and 4 /24s
Percentage of available RIPE address space announced: 74.7

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 32278
Total LACNIC prefixes after maximum aggregation: 7413
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 31264
Unique aggregates announced from the LACNIC address blocks: 16307
LACNIC Region origin ASes present in the Internet Routing Table: 1432
LACNIC Prefixes per ASN: 21.83
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 192
Number of LACNIC addresses announced to Internet: 81784704
Equivalent to 4 /8s, 223 /16s and 239 /24s
Percentage of available LACNIC address space announced: 54.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7677
Total AfriNIC prefixes after maximum aggregation: 1826
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6047
Unique aggregates announced from the AfriNIC address blocks: 1861
AfriNIC Region origin ASes present in the Internet Routing Table: 442
AfriNIC Prefixes per ASN: 13.68
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22715904
Equivalent to 1 /8s, 90 /16s and 158 /24s
Percentage of available AfriNIC address space announced: 33.8

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 2440 9515 909 Korea Telecom (KIX)
7545 1548 301 84 TPG Internet Pty Ltd
17974 1455 480 33 PT TELEKOMUNIKASI INDONESIA
4755 1442 634 168 TATA Communications formerly
24560 1137 322 203 Bharti Airtel Ltd., Telemedia
4808 1063 2140 293 CNCGROUP IP network: China169
9583 1051 77 494 Sify Limited
9829 1006 869 51 BSNL National Internet Backbo
17488 942 162 98 Hathway IP Over Cable Interne
18101 935 116 139 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3666 3822 255 bellsouth.net, inc.
4323 2541 1090 396 Time Warner Telecom
1785 1791 681 131 PaeTec Communications, Inc.
18566 1642 335 197 Covad Communications
6478 1612 306 37 AT&T Worldnet Services
20115 1532 1551 641 Charter Communications
19262 1494 4949 297 Verizon Global Networks
7018 1348 6800 879 AT&T WorldNet Services
22773 1294 2865 84 Cox Communications, Inc.
2386 1281 538 922 AT&T Data Communications Serv

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6830 515 1780 319 UPC Distribution Services
34984 495 97 188 BILISIM TELEKOM
29049 468 34 34 AzerSat LLC.
3292 455 2013 392 TDC Tele Danmark
8866 446 134 26 Bulgarian Telecommunication C
20940 441 127 338 Akamai Technologies European
3320 419 7607 365 Deutsche Telekom AG
8551 403 353 46 Bezeq International
12479 402 577 6 Uni2 Autonomous System
702 394 1800 307 UUNET - Commercial IP service

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1418 263 155 TVCABLE BOGOTA
28573 1271 972 86 NET Servicos de Comunicao S.A
8151 1241 2681 368 UniNet S.A. de C.V.
6503 959 354 72 AVANTEL, S.A.
7303 923 465 148 Telecom Argentina Stet-France
14420 645 52 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 VTR PUNTO NET S.A.
3816 516 225 98 Empresa Nacional de Telecomun
11172 487 99 81 Servicios Alestra S.A de C.V
27947 481 53 54 Telconet S.A

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 839 445 11 TEDATA
24863 776 147 39 LINKdotNET AS number
15475 420 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 231 215 12 Itissalat Al-MAGHRIB
24835 231 78 10 RAYA Telecom - Egypt
33776 227 13 5 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 148 441 86 MTN Network Solutions

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3666 3822 255 bellsouth.net, inc.
4323 2541 1090 396 Time Warner Telecom
4766 2440 9515 909 Korea Telecom (KIX)
23456 2171 632 1176 32-bit ASN transition
1785 1791 681 131 PaeTec Communications, Inc.
18566 1642 335 197 Covad Communications
6478 1612 306 37 AT&T Worldnet Services
7545 1548 301 84 TPG Internet Pty Ltd
20115 1532 1551 641 Charter Communications
19262 1494 4949 297 Verizon Global Networks

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2541 2145 Time Warner Telecom
1785 1791 1660 PaeTec Communications, Inc.
6478 1612 1575 AT&T Worldnet Services
4766 2440 1531 Korea Telecom (KIX)
7545 1548 1464 TPG Internet Pty Ltd
18566 1642 1445 Covad Communications
17974 1455 1422 PT TELEKOMUNIKASI INDONESIA
4755 1442 1274 TATA Communications formerly
10620 1418 1263 TVCABLE BOGOTA
11492 1267 1252 Cable One

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
1.3.0.0/16 38639 NTT Communications Corporatio
2.56.0.0/16 44559 E-Rent LLC
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.3.96.0/21 35470 XL Network
31.3.120.0/21 31577 ProRed Comunicaciones Autonom

Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:26 /11:74 /12:219
/13:448 /14:771 /15:1373 /16:11584 /17:5733 /18:9451
/19:19118 /20:25011 /21:25438 /22:33586 /23:32206 /24:184183
/25:1127 /26:1279 /27:699 /28:39 /29:8 /30:2
/31:0 /32:6

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2263 3666 bellsouth.net, inc.
18566 1620 1642 Covad Communications
6478 1566 1612 AT&T Worldnet Services
4323 1362 2541 Time Warner Telecom
10620 1308 1418 TVCABLE BOGOTA
11492 1216 1267 Cable One
23456 1121 2171 32-bit ASN transition
7011 1061 1161 Citizens Utilities
1785 1057 1791 PaeTec Communications, Inc.
22773 838 1294 Cox Communications, Inc.

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:294 2:53 4:14 5:1 8:348 12:2000
13:1 14:434 15:15 16:3 17:8 20:9
23:5 24:1599 27:714 31:214 32:60 33:3
34:2 37:1 38:749 39:1 40:101 41:2392
42:1 44:3 46:810 47:4 49:171 50:220
52:13 55:3 56:2 57:27 58:812 59:489
60:406 61:1164 62:1004 63:1918 64:3891 65:2334
66:4308 67:1799 68:1079 69:2946 70:698 71:343
72:1898 73:1 74:2324 75:284 76:331 77:851
78:686 79:458 80:1088 81:823 82:509 83:456
84:648 85:1045 86:555 87:761 88:340 89:1581
90:178 91:3673 92:500 93:1054 94:1257 95:782
96:448 97:252 98:819 99:35 101:61 106:2
107:4 108:78 109:941 110:529 111:683 112:324
113:385 114:513 115:703 116:932 117:674 118:773
119:1140 120:288 121:714 122:1621 123:1072 124:1281
125:1258 128:265 129:167 130:173 131:563 132:102
133:20 134:216 135:49 136:212 137:142 138:301
139:104 140:486 141:174 142:377 143:387 144:475
145:53 146:442 147:202 148:587 149:263 150:168
151:187 152:301 153:180 154:3 155:393 156:189
157:354 158:132 159:381 160:317 161:243 162:277
163:164 164:489 165:348 166:509 167:418 168:723
169:152 170:776 171:74 172:1 173:1255 174:537
175:353 177:78 178:837 180:808 181:7 182:414
183:200 184:240 185:1 186:1124 187:818 188:932
189:1018 190:4827 192:5771 193:4808 194:3471 195:2951
196:1205 197:17 198:3575 199:3901 200:5538 201:1471
202:8356 203:8438 204:4130 205:2315 206:2643 207:2999
208:3923 209:3504 210:2721 211:1363 212:1965 213:1713
214:720 215:65 216:4863 217:1644 218:557 219:386
220:1192 221:480 222:312 223:119

End of report
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Friday, April 8, 2011

[bgp-stats] Routing Table Report - RouteViews-3 view

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 09 Apr, 2011

NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/

Analysis Summary
----------------

BGP routing table entries examined: 357033
Prefixes after maximum aggregation: 161373
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 174423
Total ASes present in the Internet Routing Table: 37217
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 31200
Origin ASes announcing only one prefix: 14973
Transit ASes present in the Internet Routing Table: 5035
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 23
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2815
Unregistered ASNs in the Routing Table: 268
Number of 32-bit ASNs allocated by the RIRs: 1270
Number of 32-bit ASNs visible in the Routing Table: 982
Prefixes from 32-bit ASNs in the Routing Table: 2199
Special use prefixes present in the Routing Table: 75
Prefixes being announced from unallocated address space: 188
Number of addresses announced to Internet: 2405406776
Equivalent to 143 /8s, 95 /16s and 152 /24s
Percentage of available address space announced: 64.9
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.3
Total number of prefixes smaller than registry allocations: 147751

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 85700
Total APNIC prefixes after maximum aggregation: 28798
APNIC Deaggregation factor: 2.98
Prefixes being announced from the APNIC address blocks: 82791
Unique aggregates announced from the APNIC address blocks: 36879
APNIC Region origin ASes present in the Internet Routing Table: 4374
APNIC Prefixes per ASN: 18.93
APNIC Region origin ASes announcing only one prefix: 1226
APNIC Region transit ASes present in the Internet Routing Table: 686
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 605568193
Equivalent to 36 /8s, 24 /16s and 60 /24s
Percentage of available APNIC address space announced: 76.8

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 142018
Total ARIN prefixes after maximum aggregation: 72936
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114174
Unique aggregates announced from the ARIN address blocks: 45059
ARIN Region origin ASes present in the Internet Routing Table: 14312
ARIN Prefixes per ASN: 7.98
ARIN Region origin ASes announcing only one prefix: 5449
ARIN Region transit ASes present in the Internet Routing Table: 1457
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 23
Number of ARIN region 32-bit ASNs visible in the Routing Table: 11
Number of ARIN addresses announced to Internet: 797888536
Equivalent to 47 /8s, 142 /16s and 208 /24s
Percentage of available ARIN address space announced: 63.4

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 86600
Total RIPE prefixes after maximum aggregation: 47872
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 79080
Unique aggregates announced from the RIPE address blocks: 50233
RIPE Region origin ASes present in the Internet Routing Table: 15502
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7739
RIPE Region transit ASes present in the Internet Routing Table: 2467
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 728
Number of RIPE addresses announced to Internet: 464263996
Equivalent to 27 /8s, 172 /16s and 27 /24s
Percentage of available RIPE address space announced: 74.8

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 32524
Total LACNIC prefixes after maximum aggregation: 7461
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31483
Unique aggregates announced from the LACNIC address blocks: 16316
LACNIC Region origin ASes present in the Internet Routing Table: 1435
LACNIC Prefixes per ASN: 21.94
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 256
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 191
Number of LACNIC addresses announced to Internet: 81787532
Equivalent to 4 /8s, 223 /16s and 250 /24s
Percentage of available LACNIC address space announced: 54.2

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 7697
Total AfriNIC prefixes after maximum aggregation: 1835
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6050
Unique aggregates announced from the AfriNIC address blocks: 1862
AfriNIC Region origin ASes present in the Internet Routing Table: 442
AfriNIC Prefixes per ASN: 13.69
AfriNIC Region origin ASes announcing only one prefix: 131
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 22
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22707456
Equivalent to 1 /8s, 90 /16s and 125 /24s
Percentage of available AfriNIC address space announced: 33.8

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
4766 1876 9507 605 Korea Telecom (KIX)
7545 1545 301 84 TPG Internet Pty Ltd
17974 1458 472 34 PT TELEKOMUNIKASI INDONESIA
4755 1440 378 165 Videsh Sanchar Nigam Ltd. Aut
24560 1137 322 203 Bharti Airtel Ltd.
9583 1055 77 494 Sify Limited
9829 1006 869 51 BSNL National Internet Backbo
17488 957 162 98 Hathway IP Over Cable Interne
4808 954 2026 276 CNCGROUP IP network: China169
18101 935 116 139 Reliance Infocom Ltd Internet

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3665 3822 256 bellsouth.net, inc.
4323 2537 1106 396 Time Warner Telecom
1785 1794 681 131 AppliedTheory Corporation
18566 1642 335 197 Covad Communications
6478 1607 305 36 AT&T Worldnet Services
20115 1587 1555 641 Charter Communications
19262 1491 4948 297 Verizon Global Networks
7018 1356 6945 884 AT&T WorldNet Services
22773 1294 2865 84 Cox Communications, Inc.
2386 1277 537 922 AT&T Data Communications Serv

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
286 1006 796 169 KPNQwest Backbone AS
9116 544 326 31 Goldenlines main autonomous s
6830 515 1780 318 UPC Distribution Services
3292 509 2013 392 TDC Tele Danmark
34984 495 97 188 Tellcom Iletisim Hizmetleri
29049 468 34 34 AzerSat LLC.
8866 447 134 26 Bulgarian Telecommunication C
20940 446 129 341 Akamai Technologies European
3320 418 7607 364 Deutsche Telekom AG
8402 410 320 32 Corbina telecom

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
10620 1417 263 156 TVCABLE BOGOTA
28573 1271 972 86 Types of queries are: POCs, o
8151 1242 2663 366 Uninet S.A. de C.V.
6503 1113 354 73 AVANTEL, S.A.
7303 924 465 149 Telecom Argentina Stet-France
14420 645 52 89 Types of queries are: POCs, o
22047 567 310 15 Types of queries are: POCs, o
3816 518 225 97 COLOMBIA TELECOMUNICACIONES S
27947 490 53 54 Telconet S.A
11172 488 99 82 Alestra

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8452 838 445 11 TEDATA
24863 776 147 39 LINKdotNET AS number
15475 428 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 231 215 12 Itissalat Al-MAGHRIB
24835 231 78 10 RAYA Telecom - Egypt
33776 227 13 5 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 151 441 87 Johnnic e-Ventures

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3665 3822 256 bellsouth.net, inc.
4323 2537 1106 396 Time Warner Telecom
23456 2199 636 1185 >>UNKNOWN<<
4766 1876 9507 605 Korea Telecom (KIX)
1785 1794 681 131 AppliedTheory Corporation
18566 1642 335 197 Covad Communications
6478 1607 305 36 AT&T Worldnet Services
20115 1587 1555 641 Charter Communications
7545 1545 301 84 TPG Internet Pty Ltd
19262 1491 4948 297 Verizon Global Networks

Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
4323 2537 2141 Time Warner Telecom
1785 1794 1663 AppliedTheory Corporation
6478 1607 1571 AT&T Worldnet Services
7545 1545 1461 TPG Internet Pty Ltd
18566 1642 1445 Covad Communications
17974 1458 1424 PT TELEKOMUNIKASI INDONESIA
4755 1440 1275 Videsh Sanchar Nigam Ltd. Aut
4766 1876 1271 Korea Telecom (KIX)
10620 1417 1261 TVCABLE BOGOTA
11492 1267 1252 Cable One

Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
44559 UNALLOCATED 2.56.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.57.0.0/19 29632 The NetAssist autono
44559 UNALLOCATED 2.57.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.58.0.0/16 29632 The NetAssist autono
44559 UNALLOCATED 2.59.0.0/16 29632 The NetAssist autono
15132 UNALLOCATED 12.9.150.0/24 1239 Sprint
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 1239 Sprint

Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
1.3.0.0/16 38639 NTT Communications Corporatio
2.56.0.0/16 44559 >>UNKNOWN<<
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
31.3.80.0/21 23456 >>UNKNOWN<<
31.3.96.0/21 35470 XL Network

Complete listing at http://thyme.rand.apnic.net/rviews/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:12 /10:26 /11:75 /12:220
/13:448 /14:775 /15:1401 /16:11695 /17:5966 /18:9745
/19:19618 /20:25660 /21:25791 /22:33972 /23:32751 /24:186263
/25:362 /26:350 /27:168 /28:175 /29:200 /30:651
/31:58 /32:632

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
6389 2261 3665 bellsouth.net, inc.
18566 1620 1642 Covad Communications
6478 1561 1607 AT&T Worldnet Services
4323 1359 2537 Time Warner Telecom
10620 1307 1417 TVCABLE BOGOTA
11492 1216 1267 Cable One
23456 1136 2199 >>UNKNOWN<<
7011 1061 1161 Citizens Utilities
1785 1057 1794 AppliedTheory Corporation
6503 897 1113 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:295 2:76 4:18 5:1 8:351 12:2005
13:1 14:434 15:15 16:3 17:8 20:9
23:5 24:1615 27:712 31:213 32:126 33:3
34:2 37:1 38:751 39:1 40:101 41:2394
42:1 44:3 46:814 47:4 49:171 50:218
52:13 55:3 56:2 57:40 58:847 59:491
60:406 61:1167 62:1020 63:1934 64:3914 65:2335
66:4336 67:1825 68:1255 69:3049 70:747 71:349
72:1933 73:3 74:2387 75:298 76:340 77:892
78:696 79:470 80:1098 81:829 82:521 83:468
84:667 85:1063 86:606 87:792 88:346 89:1618
90:178 91:3692 92:498 93:1059 94:1291 95:791
96:448 97:252 98:824 99:35 101:61 106:2
107:4 108:78 109:946 110:531 111:679 112:324
113:386 114:514 115:702 116:947 117:674 118:774
119:1135 120:289 121:715 122:1621 123:1073 124:1284
125:1258 128:266 129:170 130:172 131:565 132:100
133:20 134:218 135:49 136:212 137:142 138:302
139:116 140:486 141:173 142:380 143:389 144:477
145:53 146:442 147:213 148:628 149:263 150:169
151:187 152:302 153:180 154:3 155:392 156:189
157:355 158:132 159:381 160:317 161:243 162:277
163:164 164:489 165:368 166:510 167:418 168:724
169:155 170:779 171:74 172:1 173:1275 174:540
175:350 177:78 178:848 180:809 181:7 182:417
183:201 184:321 185:1 186:1121 187:915 188:938
189:1041 190:4829 192:5806 193:4831 194:3520 195:3097
196:1213 197:17 198:3587 199:3907 200:5556 201:1491
202:8387 203:8471 204:4133 205:2326 206:2665 207:3002
208:3943 209:3516 210:2727 211:1366 212:2031 213:1771
214:729 215:66 216:4890 217:1650 218:560 219:387
220:1196 221:481 222:312 223:117

End of report
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