BGP Routing: 2011-04-24

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 30, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 01 May, 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: 360303
Prefixes after maximum aggregation: 162332
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 175631
Total ASes present in the Internet Routing Table: 37426
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31346
Origin ASes announcing only one prefix: 15021
Transit ASes present in the Internet Routing Table: 5050
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 23
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 3017
Unregistered ASNs in the Routing Table: 314
Number of 32-bit ASNs allocated by the RIRs: 1318
Number of 32-bit ASNs visible in the Routing Table: 1030
Prefixes from 32-bit ASNs in the Routing Table: 2317
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 153
Number of addresses announced to Internet: 2421341435
Equivalent to 144 /8s, 82 /16s and 188 /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: 90.6
Total number of prefixes smaller than registry allocations: 149507

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

Prefixes being announced by APNIC Region ASes: 86815
Total APNIC prefixes after maximum aggregation: 28835
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 83375
Unique aggregates announced from the APNIC address blocks: 36884
APNIC Region origin ASes present in the Internet Routing Table: 4409
APNIC Prefixes per ASN: 18.91
APNIC Region origin ASes announcing only one prefix: 1238
APNIC Region transit ASes present in the Internet Routing Table: 692
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 611376321
Equivalent to 36 /8s, 112 /16s and 220 /24s
Percentage of available APNIC address space announced: 77.5

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: 143117
Total ARIN prefixes after maximum aggregation: 73250
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115222
Unique aggregates announced from the ARIN address blocks: 45176
ARIN Region origin ASes present in the Internet Routing Table: 14342
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5462
ARIN Region transit ASes present in the Internet Routing Table: 1459
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: 799879960
Equivalent to 47 /8s, 173 /16s and 51 /24s
Percentage of available ARIN address space announced: 63.6

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: 87308
Total RIPE prefixes after maximum aggregation: 48286
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 79678
Unique aggregates announced from the RIPE address blocks: 50991
RIPE Region origin ASes present in the Internet Routing Table: 15590
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7761
RIPE Region transit ASes present in the Internet Routing Table: 2470
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 767
Number of RIPE addresses announced to Internet: 467877500
Equivalent to 27 /8s, 227 /16s and 62 /24s
Percentage of available RIPE address space announced: 75.4

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: 32763
Total LACNIC prefixes after maximum aggregation: 7500
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31782
Unique aggregates announced from the LACNIC address blocks: 16556
LACNIC Region origin ASes present in the Internet Routing Table: 1441
LACNIC Prefixes per ASN: 22.06
LACNIC Region origin ASes announcing only one prefix: 425
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 199
Number of LACNIC addresses announced to Internet: 82954508
Equivalent to 4 /8s, 241 /16s and 201 /24s
Percentage of available LACNIC address space announced: 54.9

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: 7672
Total AfriNIC prefixes after maximum aggregation: 1842
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6043
Unique aggregates announced from the AfriNIC address blocks: 1862
AfriNIC Region origin ASes present in the Internet Routing Table: 446
AfriNIC Prefixes per ASN: 13.55
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23369472
Equivalent to 1 /8s, 100 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 34.8

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 1875 9498 603 Korea Telecom (KIX)
17974 1799 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1470 301 81 TPG Internet Pty Ltd
4755 1456 374 164 Videsh Sanchar Nigam Ltd. Aut
7552 1211 1064 7 Vietel Corporation
24560 1158 336 184 Bharti Airtel Ltd.
9583 1056 77 492 Sify Limited
9829 972 843 54 BSNL National Internet Backbo
17488 960 165 100 Hathway IP Over Cable Interne
4808 955 2026 277 CNCGROUP IP network: China169

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 3646 3822 256 bellsouth.net, inc.
4323 2627 1102 397 Time Warner Telecom
18566 1790 349 229 Covad Communications
1785 1788 681 127 AppliedTheory Corporation
6478 1658 311 46 AT&T Worldnet Services
20115 1586 1556 639 Charter Communications
19262 1496 4949 299 Verizon Global Networks
7018 1352 6926 893 AT&T WorldNet Services
22773 1300 2865 84 Cox Communications, Inc.
2386 1271 535 913 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 1028 798 176 KPNQwest Backbone AS
9116 541 326 30 Goldenlines main autonomous s
6830 520 1780 321 UPC Distribution Services
3292 518 1997 391 TDC Tele Danmark
34984 509 106 182 Tellcom Iletisim Hizmetleri
29049 450 33 48 AzerSat LLC.
8866 447 134 26 Bulgarian Telecommunication C
20940 447 131 341 Akamai Technologies European
3320 422 7609 367 Deutsche Telekom AG
8551 407 356 39 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 1448 268 160 TVCABLE BOGOTA
8151 1355 2671 366 Uninet S.A. de C.V.
28573 1289 988 87 Types of queries are: POCs, o
7303 928 467 150 Telecom Argentina Stet-France
6503 853 354 74 AVANTEL, S.A.
14420 665 53 91 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 519 226 98 COLOMBIA TELECOMUNICACIONES S
14117 492 46 43 Telefonica del Sur S.A.
27947 491 53 52 Telconet S.A

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 881 445 11 TEDATA
24863 780 147 40 LINKdotNET AS number
15475 434 90 8 Nile Online
36992 299 415 13 Etisalat MISR
3741 267 985 227 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
24835 212 78 10 RAYA Telecom - Egypt
33776 203 12 14 Starcomms Nigeria Limited
29571 161 17 11 Ci Telecom Autonomous system
16637 151 441 86 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 3646 3822 256 bellsouth.net, inc.
4323 2627 1102 397 Time Warner Telecom
23456 2317 657 1261 >>UNKNOWN<<
4766 1875 9498 603 Korea Telecom (KIX)
17974 1799 507 30 PT TELEKOMUNIKASI INDONESIA
18566 1790 349 229 Covad Communications
1785 1788 681 127 AppliedTheory Corporation
6478 1658 311 46 AT&T Worldnet Services
20115 1586 1556 639 Charter Communications
19262 1496 4949 299 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 2627 2230 Time Warner Telecom
17974 1799 1769 PT TELEKOMUNIKASI INDONESIA
1785 1788 1661 AppliedTheory Corporation
6478 1658 1612 AT&T Worldnet Services
18566 1790 1561 Covad Communications
7545 1470 1389 TPG Internet Pty Ltd
4755 1456 1292 Videsh Sanchar Nigam Ltd. Aut
10620 1448 1288 TVCABLE BOGOTA
4766 1875 1272 Korea Telecom (KIX)
11492 1262 1247 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
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
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/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
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
31.200.248.0/21 45005 Gorizont LLC
31.204.128.0/19 49544 Interactive3D
31.205.0.0/16 41230 Ask4 Limited
41.222.79.0/24 36938 >>UNKNOWN<<

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 /8:21 /9:12 /10:28 /11:78 /12:221
/13:459 /14:795 /15:1415 /16:11786 /17:6003 /18:9939
/19:19725 /20:26270 /21:26060 /22:34235 /23:33177 /24:187398
/25:380 /26:363 /27:168 /28:273 /29:180 /30:610
/31:63 /32:644

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

ASN No of nets Total ann. Description
6389 2246 3646 bellsouth.net, inc.
18566 1758 1790 Covad Communications
6478 1612 1658 AT&T Worldnet Services
10620 1338 1448 TVCABLE BOGOTA
4323 1329 2627 Time Warner Telecom
11492 1211 1262 Cable One
23456 1168 2317 >>UNKNOWN<<
7011 1062 1161 Citizens Utilities
1785 1054 1788 AppliedTheory Corporation
286 888 1028 KPNQwest Backbone AS

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

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

1:263 2:67 4:18 5:1 6:3 8:351
12:1990 13:1 14:437 15:15 16:3 17:8
20:9 23:5 24:1630 27:728 31:233 32:126
33:3 34:2 37:1 38:767 40:101 41:2378
42:5 44:3 46:884 47:4 49:171 50:375
52:13 55:5 56:2 57:40 58:844 59:483
60:356 61:1268 62:998 63:1939 64:3988 65:2319
66:4401 67:1891 68:1256 69:3070 70:743 71:351
72:1929 73:3 74:2418 75:312 76:344 77:877
78:685 79:474 80:1109 81:821 82:509 83:461
84:668 85:1087 86:613 87:775 88:329 89:1630
90:183 91:3730 92:514 93:1073 94:1288 95:803
96:478 97:254 98:828 99:35 101:68 103:5
106:1 107:6 108:83 109:944 110:559 111:695
112:320 113:398 114:535 115:686 116:975 117:680
118:809 119:1137 120:306 121:678 122:1623 123:1074
124:1256 125:1219 128:262 129:166 130:172 131:564
132:112 133:19 134:219 135:49 136:214 137:142
138:303 139:118 140:470 141:174 142:403 143:399
144:488 145:52 146:442 147:217 148:589 149:243
150:171 151:187 152:309 153:179 154:3 155:397
156:190 157:355 158:132 159:384 160:314 161:213
162:276 163:164 164:494 165:366 166:510 167:428
168:721 169:154 170:789 171:76 172:1 173:1550
174:540 175:361 177:82 178:865 180:817 181:16
182:431 183:205 184:339 185:1 186:1136 187:809
188:992 189:971 190:4852 192:5821 193:4870 194:3522
195:3108 196:1196 197:16 198:3571 199:3922 200:5525
201:1519 202:8351 203:8427 204:4146 205:2328 206:2767
207:3039 208:3965 209:3494 210:2732 211:1388 212:2024
213:1758 214:727 215:67 216:4908 217:1656 218:566
219:375 220:1204 221:486 222:342 223:145

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 01 May, 2011

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

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

BGP routing table entries examined: 350807
Prefixes after maximum aggregation: 159074
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 175637
Total ASes present in the Internet Routing Table: 36226
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 31315
Origin ASes announcing only one prefix: 15060
Transit ASes present in the Internet Routing Table: 4911
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1946
Unregistered ASNs in the Routing Table: 383
Number of 32-bit ASNs allocated by the RIRs: 1318
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2294
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 150
Number of addresses announced to Internet: 2437627392
Equivalent to 145 /8s, 75 /16s and 62 /24s
Percentage of available address space announced: 65.8
Percentage of allocated address space announced: 65.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.6
Total number of prefixes smaller than registry allocations: 144305

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

Prefixes being announced by APNIC Region ASes: 84722
Total APNIC prefixes after maximum aggregation: 28570
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 81987
Unique aggregates announced from the APNIC address blocks: 36795
APNIC Region origin ASes present in the Internet Routing Table: 4372
APNIC Prefixes per ASN: 18.75
APNIC Region origin ASes announcing only one prefix: 1237
APNIC Region transit ASes present in the Internet Routing Table: 667
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 610672384
Equivalent to 36 /8s, 102 /16s and 31 /24s
Percentage of available APNIC address space announced: 77.4

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

Prefixes being announced by ARIN Region ASes: 138807
Total ARIN prefixes after maximum aggregation: 70742
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111560
Unique aggregates announced from the ARIN address blocks: 45244
ARIN Region origin ASes present in the Internet Routing Table: 14254
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5455
ARIN Region transit ASes present in the Internet Routing Table: 1417
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: 799771136
Equivalent to 47 /8s, 171 /16s and 138 /24s
Percentage of available ARIN address space announced: 63.6

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

Prefixes being announced by RIPE Region ASes: 84424
Total RIPE prefixes after maximum aggregation: 47938
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 77581
Unique aggregates announced from the RIPE address blocks: 51130
RIPE Region origin ASes present in the Internet Routing Table: 15555
RIPE Prefixes per ASN: 4.99
RIPE Region origin ASes announcing only one prefix: 7804
RIPE Region transit ASes present in the Internet Routing Table: 2422
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 467469824
Equivalent to 27 /8s, 221 /16s and 6 /24s
Percentage of available RIPE address space announced: 75.3

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

Prefixes being announced by LACNIC Region ASes: 32156
Total LACNIC prefixes after maximum aggregation: 7370
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31313
Unique aggregates announced from the LACNIC address blocks: 16543
LACNIC Region origin ASes present in the Internet Routing Table: 1430
LACNIC Prefixes per ASN: 21.90
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 249
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 82902272
Equivalent to 4 /8s, 240 /16s and 253 /24s
Percentage of available LACNIC address space announced: 54.9

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: 7725
Total AfriNIC prefixes after maximum aggregation: 1849
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6081
Unique aggregates announced from the AfriNIC address blocks: 1915
AfriNIC Region origin ASes present in the Internet Routing Table: 445
AfriNIC Prefixes per ASN: 13.67
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 97
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: 23367680
Equivalent to 1 /8s, 100 /16s and 144 /24s
Percentage of available AfriNIC address space announced: 34.8

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 1874 9482 602 Korea Telecom (KIX)
17974 1473 470 33 PT Telekomunikasi Indonesia
7545 1470 301 81 TPG Internet Pty Ltd
4755 1458 634 166 TATA Communications formerly
7552 1211 1064 7 Vietel Corporation
24560 1158 336 184 Bharti Airtel Ltd., Telemedia
9583 1057 78 493 Sify Limited
9829 972 843 54 National Internet Backbone
4808 948 2020 277 CNCGROUP IP network China169
17488 943 165 100 Hathway IP Over Cable Interne

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 3647 3822 256 BellSouth.net Inc.
4323 2630 1102 398 tw telecom holdings, inc.
1785 1788 681 127 PaeTec Communications, Inc.
18566 1737 340 231 Covad Communications Co.
6478 1658 311 46 AT&T Services, Inc.
20115 1536 1552 639 Charter Communications
19262 1495 4949 298 Verizon Online LLC
7018 1359 6943 899 AT&T Services, Inc.
22773 1299 2865 84 Cox Communications Inc.
2386 1269 536 911 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 540 326 30 Goldenlines main autonomous s
6830 518 1780 321 UPC Broadband
34984 509 106 182 BILISIM TELEKOM
3292 457 1997 391 TDC Data Networks
29049 450 33 48 AzerSat LLC.
8866 446 134 26 Bulgarian Telecommunication C
20940 446 131 341 Akamai Technologies European
3320 422 7609 367 Deutsche Telekom AG
8551 407 356 39 Bezeq International
12479 406 577 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 1448 268 160 Types of queries are: POCs, o
28573 1259 988 87 Types of queries are: POCs, o
8151 1229 2671 360 Uninet S.A. de C.V.
7303 904 466 137 Telecom Argentina S.A.
6503 852 354 74 Axtel, S.A.B. de C.V.
14420 665 53 91 CORPORACION NACIONAL DE TELEC
22047 564 310 15 Types of queries are: POCs, o
3816 518 226 98 Types of queries are: POCs, o
14117 492 46 43 Telefonica del Sur S.A.
11172 486 99 81 Alestra, S. de R.L. de C.V.

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 879 445 11 TEDATA
24863 776 147 37 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 299 415 13 Etisalat MISR
3741 267 985 227 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
24835 212 78 10 RAYA Telecom - Egypt
33776 203 12 14 Starcomms Nigeria Limited
29571 161 17 11 Ci Telecom Autonomous system
16637 148 441 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 3647 3822 256 BellSouth.net Inc.
4323 2630 1102 398 tw telecom holdings, inc.
23456 2294 657 1254 32-bit ASN transition
4766 1874 9482 602 Korea Telecom (KIX)
1785 1788 681 127 PaeTec Communications, Inc.
18566 1737 340 231 Covad Communications Co.
6478 1658 311 46 AT&T Services, Inc.
20115 1536 1552 639 Charter Communications
19262 1495 4949 298 Verizon Online LLC
17974 1473 470 33 PT Telekomunikasi Indonesia

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 2630 2232 tw telecom holdings, inc.
1785 1788 1661 PaeTec Communications, Inc.
6478 1658 1612 AT&T Services, Inc.
18566 1737 1506 Covad Communications Co.
17974 1473 1440 PT Telekomunikasi Indonesia
7545 1470 1389 TPG Internet Pty Ltd
4755 1458 1292 TATA Communications formerly
10620 1448 1288 Types of queries are: POCs, o
4766 1874 1272 Korea Telecom (KIX)
11492 1259 1244 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
--------------------------------

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 /8:21 /9:12 /10:28 /11:77 /12:221
/13:459 /14:789 /15:1386 /16:11635 /17:5744 /18:9574
/19:19297 /20:25581 /21:25587 /22:33611 /23:32351 /24:183971
/25:10 /26:17 /27:24 /28:156 /29:93 /30:49
/31:0 /32:114

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

ASN No of nets Total ann. Description
6389 2247 3647 BellSouth.net Inc.
18566 1711 1737 Covad Communications Co.
6478 1612 1658 AT&T Services, Inc.
10620 1338 1448 Types of queries are: POCs, o
4323 1330 2630 tw telecom holdings, inc.
11492 1208 1259 CABLE ONE, INC.
23456 1153 2294 32-bit ASN transition
7011 1062 1161 Frontier Communications of Am
1785 1054 1788 PaeTec Communications, Inc.
22773 843 1299 Cox Communications Inc.

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

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

1:261 2:51 4:14 5:1 6:3 8:350
12:1985 13:1 14:434 15:15 16:3 17:8
20:9 23:5 24:1612 27:724 31:233 32:55
33:3 34:2 37:1 38:762 40:101 41:2434
42:5 44:3 46:880 47:4 49:171 50:375
52:13 55:5 56:2 57:29 58:791 59:476
60:354 61:1091 62:982 63:1921 64:3931 65:2296
66:4361 67:1867 68:1079 69:2964 70:698 71:346
72:1896 73:1 74:2356 75:298 76:336 77:837
78:679 79:463 80:1098 81:815 82:498 83:453
84:649 85:1077 86:564 87:758 88:323 89:1593
90:183 91:3714 92:513 93:1059 94:1265 95:794
96:473 97:254 98:821 99:35 101:60 103:5
106:1 107:6 108:83 109:937 110:551 111:694
112:313 113:395 114:531 115:676 116:940 117:680
118:775 119:1132 120:304 121:650 122:1620 123:1057
124:1249 125:1203 128:209 129:158 130:166 131:559
132:103 133:19 134:209 135:49 136:211 137:134
138:302 139:104 140:448 141:174 142:384 143:396
144:485 145:52 146:437 147:206 148:581 149:242
150:163 151:187 152:307 153:179 154:2 155:397
156:187 157:325 158:132 159:377 160:313 161:205
162:275 163:154 164:485 165:346 166:510 167:428
168:716 169:152 170:784 171:76 172:1 173:1532
174:537 175:348 177:82 178:852 180:810 181:16
182:418 183:183 184:258 185:1 186:1134 187:807
188:989 189:971 190:4830 192:5736 193:4847 194:3467
195:2971 196:1208 197:16 198:3503 199:3882 200:5502
201:1500 202:8129 203:8303 204:4066 205:2300 206:2648
207:2963 208:3940 209:3456 210:2649 211:1380 212:1979
213:1703 214:727 215:67 216:4866 217:1650 218:551
219:372 220:1198 221:468 222:306 223:143

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 01 May, 2011

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

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

BGP routing table entries examined: 355975
Prefixes after maximum aggregation: 161045
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 175770
Total ASes present in the Internet Routing Table: 37416
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 31332
Origin ASes announcing only one prefix: 15062
Transit ASes present in the Internet Routing Table: 5058
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 36
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 576
Unregistered ASNs in the Routing Table: 285
Number of 32-bit ASNs allocated by the RIRs: 1318
Number of 32-bit ASNs visible in the Routing Table: 1026
Prefixes from 32-bit ASNs in the Routing Table: 2297
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 150
Number of addresses announced to Internet: 2420755136
Equivalent to 144 /8s, 73 /16s and 202 /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: 90.6
Total number of prefixes smaller than registry allocations: 147870

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

Prefixes being announced by APNIC Region ASes: 88987
Total APNIC prefixes after maximum aggregation: 29926
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 85435
Unique aggregates announced from the APNIC address blocks: 36896
APNIC Region origin ASes present in the Internet Routing Table: 4426
APNIC Prefixes per ASN: 19.30
APNIC Region origin ASes announcing only one prefix: 1229
APNIC Region transit ASes present in the Internet Routing Table: 704
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 47
Number of APNIC addresses announced to Internet: 611188256
Equivalent to 36 /8s, 109 /16s and 254 /24s
Percentage of available APNIC address space announced: 77.5

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

Prefixes being announced by ARIN Region ASes: 140169
Total ARIN prefixes after maximum aggregation: 71231
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112574
Unique aggregates announced from the ARIN address blocks: 45247
ARIN Region origin ASes present in the Internet Routing Table: 14336
ARIN Prefixes per ASN: 7.85
ARIN Region origin ASes announcing only one prefix: 5471
ARIN Region transit ASes present in the Internet Routing Table: 1489
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: 799844864
Equivalent to 47 /8s, 172 /16s and 170 /24s
Percentage of available ARIN address space announced: 63.6

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

Prefixes being announced by RIPE Region ASes: 84029
Total RIPE prefixes after maximum aggregation: 47949
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 77207
Unique aggregates announced from the RIPE address blocks: 51100
RIPE Region origin ASes present in the Internet Routing Table: 15552
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7803
RIPE Region transit ASes present in the Internet Routing Table: 2440
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 36
Number of RIPE region 32-bit ASNs visible in the Routing Table: 762
Number of RIPE addresses announced to Internet: 467576320
Equivalent to 27 /8s, 222 /16s and 166 /24s
Percentage of available RIPE address space announced: 75.3

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

Prefixes being announced by LACNIC Region ASes: 32544
Total LACNIC prefixes after maximum aggregation: 7475
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 31551
Unique aggregates announced from the LACNIC address blocks: 16547
LACNIC Region origin ASes present in the Internet Routing Table: 1441
LACNIC Prefixes per ASN: 21.90
LACNIC Region origin ASes announcing only one prefix: 424
LACNIC Region transit ASes present in the Internet Routing Table: 262
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: 201
Number of LACNIC addresses announced to Internet: 82948864
Equivalent to 4 /8s, 241 /16s and 179 /24s
Percentage of available LACNIC address space announced: 54.9

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: 7725
Total AfriNIC prefixes after maximum aggregation: 1855
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6088
Unique aggregates announced from the AfriNIC address blocks: 1924
AfriNIC Region origin ASes present in the Internet Routing Table: 448
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 135
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 23374080
Equivalent to 1 /8s, 100 /16s and 169 /24s
Percentage of available AfriNIC address space announced: 34.8

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 2436 9490 906 Korea Telecom (KIX)
17974 1800 515 29 PT TELEKOMUNIKASI INDONESIA
7545 1559 301 85 TPG Internet Pty Ltd
4755 1459 634 167 TATA Communications formerly
7552 1211 1064 7 Vietel Corporation
24560 1157 336 184 Bharti Airtel Ltd., Telemedia
9583 1056 77 492 Sify Limited
4808 1034 2090 294 CNCGROUP IP network: China169
9829 972 843 54 BSNL National Internet Backbo
17488 945 165 100 Hathway IP Over Cable Interne

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 3647 3822 255 bellsouth.net, inc.
4323 2631 1086 397 Time Warner Telecom
18566 1790 349 229 Covad Communications
1785 1785 681 127 PaeTec Communications, Inc.
6478 1658 311 46 AT&T Worldnet Services
20115 1536 1552 639 Charter Communications
19262 1495 4949 298 Verizon Global Networks
7018 1348 6910 889 AT&T WorldNet Services
22773 1300 2865 84 Cox Communications, Inc.
2386 1268 536 911 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 520 1780 322 UPC Distribution Services
34984 509 106 182 BILISIM TELEKOM
3292 457 1997 391 TDC Tele Danmark
29049 450 33 48 AzerSat LLC.
8866 446 134 26 Bulgarian Telecommunication C
20940 442 129 338 Akamai Technologies European
3320 423 7609 368 Deutsche Telekom AG
12479 408 577 6 Uni2 Autonomous System
8551 406 355 45 Bezeq International
702 396 1802 309 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 1448 268 160 TVCABLE BOGOTA
28573 1286 988 87 NET Servicos de Comunicao S.A
8151 1248 2690 367 UniNet S.A. de C.V.
7303 927 467 149 Telecom Argentina Stet-France
6503 852 354 73 AVANTEL, S.A.
14420 665 53 91 CORPORACION NACIONAL DE TELEC
22047 564 310 15 VTR PUNTO NET S.A.
3816 518 226 99 Empresa Nacional de Telecomun
11172 489 99 82 Servicios Alestra S.A de C.V
13489 486 229 116 Orbitel S.A. E.S.P.

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 881 445 11 TEDATA
24863 779 147 39 LINKdotNET AS number
15475 421 90 8 Nile Online
36992 299 415 13 Etisalat MISR
3741 267 985 227 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
24835 212 78 10 RAYA Telecom - Egypt
33776 204 12 14 Starcomms Nigeria Limited
29571 161 17 11 Ci Telecom Autonomous system
16637 149 441 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 3647 3822 255 bellsouth.net, inc.
4323 2631 1086 397 Time Warner Telecom
4766 2436 9490 906 Korea Telecom (KIX)
23456 2297 656 1256 32-bit ASN transition
17974 1800 515 29 PT TELEKOMUNIKASI INDONESIA
18566 1790 349 229 Covad Communications
1785 1785 681 127 PaeTec Communications, Inc.
6478 1658 311 46 AT&T Worldnet Services
7545 1559 301 85 TPG Internet Pty Ltd
20115 1536 1552 639 Charter Communications

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 2631 2234 Time Warner Telecom
17974 1800 1771 PT TELEKOMUNIKASI INDONESIA
1785 1785 1658 PaeTec Communications, Inc.
6478 1658 1612 AT&T Worldnet Services
18566 1790 1561 Covad Communications
4766 2436 1530 Korea Telecom (KIX)
7545 1559 1474 TPG Internet Pty Ltd
4755 1459 1292 TATA Communications formerly
10620 1448 1288 TVCABLE BOGOTA
11492 1262 1247 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
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
31.200.248.0/21 45005 Gorizont LLC
31.204.128.0/19 49544 Interactive3D
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<

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 /8:20 /9:12 /10:28 /11:77 /12:221
/13:459 /14:790 /15:1386 /16:11671 /17:5755 /18:9650
/19:19187 /20:25576 /21:25662 /22:33855 /23:32683 /24:185794
/25:1103 /26:1286 /27:705 /28:39 /29:8 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2248 3647 bellsouth.net, inc.
18566 1758 1790 Covad Communications
6478 1612 1658 AT&T Worldnet Services
10620 1338 1448 TVCABLE BOGOTA
4323 1332 2631 Time Warner Telecom
11492 1211 1262 Cable One
23456 1154 2297 32-bit ASN transition
7011 1062 1161 Citizens Utilities
1785 1054 1785 PaeTec Communications, Inc.
22773 844 1300 Cox Communications, Inc.

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

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

1:263 2:51 4:14 5:1 6:3 8:351
12:1987 13:1 14:445 15:15 16:3 17:8
20:9 23:5 24:1616 27:726 31:233 32:60
33:3 34:2 37:1 38:766 40:101 41:2430
42:5 44:3 46:880 47:4 49:171 50:375
52:13 55:6 56:2 57:30 58:841 59:481
60:387 61:1265 62:973 63:1927 64:3961 65:2318
66:4376 67:1868 68:1080 69:2965 70:699 71:346
72:1896 73:1 74:2358 75:298 76:336 77:836
78:678 79:449 80:1100 81:814 82:494 83:450
84:650 85:1073 86:566 87:746 88:322 89:1596
90:183 91:3717 92:513 93:1057 94:1266 95:795
96:478 97:254 98:822 99:35 101:68 103:5
106:1 107:6 108:83 109:938 110:560 111:699
112:320 113:397 114:531 115:683 116:953 117:681
118:810 119:1144 120:306 121:673 122:1623 123:1076
124:1256 125:1217 128:264 129:163 130:172 131:566
132:112 133:19 134:217 135:49 136:214 137:141
138:302 139:106 140:471 141:174 142:400 143:399
144:488 145:52 146:441 147:206 148:589 149:243
150:171 151:187 152:309 153:179 154:3 155:396
156:190 157:354 158:132 159:384 160:313 161:213
162:277 163:164 164:494 165:351 166:510 167:428
168:721 169:153 170:789 171:76 172:1 173:1532
174:537 175:361 177:82 178:852 180:817 181:16
182:435 183:204 184:258 185:1 186:1135 187:806
188:988 189:971 190:4849 192:5779 193:4842 194:3470
195:2971 196:1203 197:16 198:3561 199:3912 200:5520
201:1506 202:8353 203:8438 204:4141 205:2322 206:2748
207:3035 208:3953 209:3483 210:2728 211:1386 212:1971
213:1702 214:728 215:67 216:4890 217:1650 218:562
219:374 220:1202 221:484 222:342 223:145

End of report
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Friday, April 29, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 30 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: 360074
Prefixes after maximum aggregation: 162374
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 175813
Total ASes present in the Internet Routing Table: 37435
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31486
Origin ASes announcing only one prefix: 15022
Transit ASes present in the Internet Routing Table: 4917
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 22
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 3005
Unregistered ASNs in the Routing Table: 312
Number of 32-bit ASNs allocated by the RIRs: 1317
Number of 32-bit ASNs visible in the Routing Table: 1032
Prefixes from 32-bit ASNs in the Routing Table: 2318
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 155
Number of addresses announced to Internet: 2421370875
Equivalent to 144 /8s, 83 /16s and 47 /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: 90.6
Total number of prefixes smaller than registry allocations: 149210

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

Prefixes being announced by APNIC Region ASes: 86947
Total APNIC prefixes after maximum aggregation: 28834
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 83484
Unique aggregates announced from the APNIC address blocks: 36930
APNIC Region origin ASes present in the Internet Routing Table: 4409
APNIC Prefixes per ASN: 18.93
APNIC Region origin ASes announcing only one prefix: 1241
APNIC Region transit ASes present in the Internet Routing Table: 680
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 611387585
Equivalent to 36 /8s, 113 /16s and 8 /24s
Percentage of available APNIC address space announced: 77.5

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

Prefixes being announced by ARIN Region ASes: 143090
Total ARIN prefixes after maximum aggregation: 73242
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 115163
Unique aggregates announced from the ARIN address blocks: 45166
ARIN Region origin ASes present in the Internet Routing Table: 14344
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5460
ARIN Region transit ASes present in the Internet Routing Table: 1437
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 11
Number of ARIN addresses announced to Internet: 799874840
Equivalent to 47 /8s, 173 /16s and 31 /24s
Percentage of available ARIN address space announced: 63.6

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

Prefixes being announced by RIPE Region ASes: 87333
Total RIPE prefixes after maximum aggregation: 48293
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 79683
Unique aggregates announced from the RIPE address blocks: 50996
RIPE Region origin ASes present in the Internet Routing Table: 15589
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7757
RIPE Region transit ASes present in the Internet Routing Table: 2384
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 767
Number of RIPE addresses announced to Internet: 467906940
Equivalent to 27 /8s, 227 /16s and 177 /24s
Percentage of available RIPE address space announced: 75.4

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

Prefixes being announced by LACNIC Region ASes: 32714
Total LACNIC prefixes after maximum aggregation: 7492
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31743
Unique aggregates announced from the LACNIC address blocks: 16534
LACNIC Region origin ASes present in the Internet Routing Table: 1444
LACNIC Prefixes per ASN: 21.98
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 263
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 201
Number of LACNIC addresses announced to Internet: 82921484
Equivalent to 4 /8s, 241 /16s and 72 /24s
Percentage of available LACNIC address space announced: 54.9

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: 7376
Total AfriNIC prefixes after maximum aggregation: 1893
AfriNIC Deaggregation factor: 3.90
Prefixes being announced from the AfriNIC address blocks: 5731
Unique aggregates announced from the AfriNIC address blocks: 1993
AfriNIC Region origin ASes present in the Internet Routing Table: 446
AfriNIC Prefixes per ASN: 12.85
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 98
Average AfriNIC Region AS path length visible: 3.8
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: 23318784
Equivalent to 1 /8s, 99 /16s and 209 /24s
Percentage of available AfriNIC address space announced: 34.7

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 1874 9494 602 Korea Telecom (KIX)
17974 1825 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1471 301 82 TPG Internet Pty Ltd
4755 1458 634 166 Videsh Sanchar Nigam Ltd. Aut
7552 1215 1064 7 Vietel Corporation
24560 1159 336 190 Bharti Airtel Ltd.
9583 1057 78 493 Sify Limited
9829 1006 870 50 BSNL National Internet Backbo
17488 959 165 100 Hathway IP Over Cable Interne
18101 934 116 139 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 3645 3822 257 bellsouth.net, inc.
4323 2631 1102 398 Time Warner Telecom
1785 1792 681 129 AppliedTheory Corporation
18566 1790 349 229 Covad Communications
6478 1658 311 46 AT&T Worldnet Services
20115 1585 1556 638 Charter Communications
19262 1495 4933 298 Verizon Global Networks
7018 1349 6782 891 AT&T WorldNet Services
22773 1300 2865 84 Cox Communications, Inc.
2386 1272 536 913 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 1029 798 176 KPNQwest Backbone AS
9116 541 326 30 Goldenlines main autonomous s
6830 521 1780 322 UPC Distribution Services
3292 519 1997 392 TDC Tele Danmark
34984 509 106 182 Tellcom Iletisim Hizmetleri
29049 450 33 48 AzerSat LLC.
8866 447 134 26 Bulgarian Telecommunication C
20940 447 131 341 Akamai Technologies European
3320 422 7609 367 Deutsche Telekom AG
8551 407 356 39 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 1448 268 160 TVCABLE BOGOTA
8151 1356 2670 363 Uninet S.A. de C.V.
28573 1289 988 87 Types of queries are: POCs, o
7303 927 467 149 Telecom Argentina Stet-France
6503 853 354 74 AVANTEL, S.A.
14420 665 53 91 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 519 226 98 COLOMBIA TELECOMUNICACIONES S
14117 492 46 43 Telefonica del Sur S.A.
27947 491 53 47 Telconet S.A

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 882 445 11 TEDATA
24863 780 147 40 LINKdotNET AS number
3741 267 985 227 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
24835 211 78 10 RAYA Telecom - Egypt
33776 208 12 10 Starcomms Nigeria Limited
36992 204 413 18 Etisalat MISR
15475 163 79 44 Nile Online
29571 161 17 11 Ci Telecom Autonomous system
16637 151 441 86 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 3645 3822 257 bellsouth.net, inc.
4323 2631 1102 398 Time Warner Telecom
23456 2318 661 1261 >>UNKNOWN<<
4766 1874 9494 602 Korea Telecom (KIX)
17974 1825 507 30 PT TELEKOMUNIKASI INDONESIA
1785 1792 681 129 AppliedTheory Corporation
18566 1790 349 229 Covad Communications
6478 1658 311 46 AT&T Worldnet Services
20115 1585 1556 638 Charter Communications
19262 1495 4933 298 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 2631 2233 Time Warner Telecom
17974 1825 1795 PT TELEKOMUNIKASI INDONESIA
1785 1792 1663 AppliedTheory Corporation
6478 1658 1612 AT&T Worldnet Services
18566 1790 1561 Covad Communications
7545 1471 1389 TPG Internet Pty Ltd
4755 1458 1292 Videsh Sanchar Nigam Ltd. Aut
10620 1448 1288 TVCABLE BOGOTA
4766 1874 1272 Korea Telecom (KIX)
11492 1262 1247 Cable One

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

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

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
--------------------------------

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 /8:21 /9:12 /10:28 /11:78 /12:221
/13:459 /14:795 /15:1415 /16:11785 /17:6003 /18:9940
/19:19706 /20:26285 /21:26056 /22:34246 /23:33178 /24:187165
/25:380 /26:364 /27:168 /28:274 /29:182 /30:611
/31:63 /32:639

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

ASN No of nets Total ann. Description
6389 2245 3645 bellsouth.net, inc.
18566 1758 1790 Covad Communications
6478 1612 1658 AT&T Worldnet Services
10620 1338 1448 TVCABLE BOGOTA
4323 1332 2631 Time Warner Telecom
11492 1211 1262 Cable One
23456 1165 2318 >>UNKNOWN<<
7011 1062 1161 Citizens Utilities
1785 1059 1792 AppliedTheory Corporation
286 889 1029 KPNQwest Backbone AS

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

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

1:264 2:67 4:18 5:1 6:3 8:352
12:1990 13:1 14:436 15:15 16:3 17:8
20:9 23:5 24:1629 27:723 31:233 32:119
33:3 34:2 37:1 38:766 40:101 41:2424
42:5 44:3 46:885 47:4 49:171 50:375
52:13 55:5 56:2 57:40 58:842 59:483
60:356 61:1269 62:915 63:1941 64:3978 65:2320
66:4395 67:1893 68:1252 69:3067 70:745 71:351
72:1927 73:3 74:2419 75:312 76:341 77:876
78:686 79:474 80:1103 81:823 82:492 83:471
84:572 85:1092 86:613 87:776 88:329 89:1634
90:183 91:3731 92:513 93:1074 94:1295 95:806
96:478 97:254 98:829 99:35 101:68 103:5
106:1 107:6 108:83 109:948 110:560 111:699
112:320 113:398 114:534 115:684 116:968 117:681
118:809 119:1140 120:306 121:676 122:1623 123:1076
124:1255 125:1220 128:265 129:166 130:172 131:568
132:112 133:19 134:219 135:49 136:214 137:142
138:303 139:114 140:471 141:173 142:403 143:401
144:488 145:52 146:442 147:217 148:591 149:243
150:171 151:187 152:309 153:179 154:3 155:396
156:190 157:354 158:132 159:384 160:314 161:247
162:277 163:162 164:494 165:369 166:511 167:427
168:721 169:154 170:788 171:76 172:1 173:1530
174:538 175:361 177:82 178:863 180:817 181:16
182:437 183:204 184:339 185:1 186:1139 187:790
188:993 189:971 190:4845 192:5818 193:4869 194:3522
195:3108 196:1210 197:16 198:3581 199:3920 200:5521
201:1515 202:8380 203:8449 204:4139 205:2329 206:2769
207:3034 208:3964 209:3494 210:2733 211:1388 212:2022
213:1729 214:725 215:67 216:4897 217:1566 218:567
219:375 220:1205 221:486 222:342 223:145

End of report
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