BGP Routing: 2011-04-10

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 16, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sun 17 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: 358704
Prefixes after maximum aggregation: 161652
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 174851
Total ASes present in the Internet Routing Table: 37327
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31357
Origin ASes announcing only one prefix: 14983
Transit ASes present in the Internet Routing Table: 4964
Transit-only ASes present in the Internet Routing Table: 123
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 26
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2872
Unregistered ASNs in the Routing Table: 280
Number of 32-bit ASNs allocated by the RIRs: 1300
Number of 32-bit ASNs visible in the Routing Table: 1006
Prefixes from 32-bit ASNs in the Routing Table: 2225
Special use prefixes present in the Routing Table: 76
Prefixes being announced from unallocated address space: 156
Number of addresses announced to Internet: 2412584585
Equivalent to 143 /8s, 205 /16s and 30 /24s
Percentage of available address space announced: 65.1
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.5
Total number of prefixes smaller than registry allocations: 148611

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

Prefixes being announced by APNIC Region ASes: 85945
Total APNIC prefixes after maximum aggregation: 28787
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 83108
Unique aggregates announced from the APNIC address blocks: 37074
APNIC Region origin ASes present in the Internet Routing Table: 4391
APNIC Prefixes per ASN: 18.93
APNIC Region origin ASes announcing only one prefix: 1236
APNIC Region transit ASes present in the Internet Routing Table: 682
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 610156225
Equivalent to 36 /8s, 94 /16s and 62 /24s
Percentage of available APNIC address space announced: 77.4

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: 142824
Total ARIN prefixes after maximum aggregation: 73047
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 114935
Unique aggregates announced from the ARIN address blocks: 45032
ARIN Region origin ASes present in the Internet Routing Table: 14333
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5451
ARIN Region transit ASes present in the Internet Routing Table: 1459
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: 797944856
Equivalent to 47 /8s, 143 /16s and 172 /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: 87213
Total RIPE prefixes after maximum aggregation: 48044
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 79536
Unique aggregates announced from the RIPE address blocks: 50445
RIPE Region origin ASes present in the Internet Routing Table: 15542
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7740
RIPE Region transit ASes present in the Internet Routing Table: 2407
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 747
Number of RIPE addresses announced to Internet: 466147724
Equivalent to 27 /8s, 200 /16s and 217 /24s
Percentage of available RIPE address space announced: 75.1

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: 32620
Total LACNIC prefixes after maximum aggregation: 7448
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31600
Unique aggregates announced from the LACNIC address blocks: 16414
LACNIC Region origin ASes present in the Internet Routing Table: 1437
LACNIC Prefixes per ASN: 21.99
LACNIC Region origin ASes announcing only one prefix: 428
LACNIC Region transit ASes present in the Internet Routing Table: 260
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 195
Number of LACNIC addresses announced to Internet: 82256268
Equivalent to 4 /8s, 231 /16s and 33 /24s
Percentage of available LACNIC address space announced: 54.5

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: 7583
Total AfriNIC prefixes after maximum aggregation: 1814
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 5964
Unique aggregates announced from the AfriNIC address blocks: 1822
AfriNIC Region origin ASes present in the Internet Routing Table: 439
AfriNIC Prefixes per ASN: 13.59
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 22745600
Equivalent to 1 /8s, 91 /16s and 18 /24s
Percentage of available AfriNIC address space announced: 33.9

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 1869 9476 598 Korea Telecom (KIX)
17974 1808 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1498 300 81 TPG Internet Pty Ltd
4755 1445 638 166 Videsh Sanchar Nigam Ltd. Aut
24560 1137 322 203 Bharti Airtel Ltd.
9583 1056 77 497 Sify Limited
9829 1008 870 50 BSNL National Internet Backbo
17488 957 164 98 Hathway IP Over Cable Interne
18101 934 116 139 Reliance Infocom Ltd Internet
4808 879 1924 262 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 3665 3822 256 bellsouth.net, inc.
4323 2654 1106 396 Time Warner Telecom
1785 1789 681 129 AppliedTheory Corporation
18566 1760 349 229 Covad Communications
6478 1624 307 35 AT&T Worldnet Services
20115 1586 1556 639 Charter Communications
19262 1495 4933 298 Verizon Global Networks
7018 1361 6962 889 AT&T WorldNet Services
22773 1298 2865 84 Cox Communications, Inc.
2386 1272 535 916 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 1015 797 172 KPNQwest Backbone AS
9116 542 326 30 Goldenlines main autonomous s
6830 517 1780 318 UPC Distribution Services
3292 508 1997 392 TDC Tele Danmark
34984 505 98 183 Tellcom Iletisim Hizmetleri
29049 467 33 34 AzerSat LLC.
8866 447 134 26 Bulgarian Telecommunication C
20940 441 127 338 Akamai Technologies European
8402 424 320 32 Corbina telecom
3320 418 7607 364 Deutsche Telekom AG

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 1426 265 157 TVCABLE BOGOTA
8151 1356 2685 373 Uninet S.A. de C.V.
28573 1279 972 86 Types of queries are: POCs, o
7303 928 467 148 Telecom Argentina Stet-France
6503 896 354 65 AVANTEL, S.A.
14420 663 53 91 Types of queries are: POCs, o
22047 568 310 15 Types of queries are: POCs, o
3816 518 225 97 COLOMBIA TELECOMUNICACIONES S
27947 489 54 48 Telconet S.A
11172 486 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 837 445 11 TEDATA
24863 778 147 39 LINKdotNET AS number
15475 429 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 235 215 13 Itissalat Al-MAGHRIB
24835 222 78 10 RAYA Telecom - Egypt
33776 195 12 8 Starcomms Nigeria Limited
29571 161 17 11 Ci Telecom Autonomous system
16637 150 441 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 3665 3822 256 bellsouth.net, inc.
4323 2654 1106 396 Time Warner Telecom
23456 2225 643 1206 >>UNKNOWN<<
4766 1869 9476 598 Korea Telecom (KIX)
17974 1808 507 30 PT TELEKOMUNIKASI INDONESIA
1785 1789 681 129 AppliedTheory Corporation
18566 1760 349 229 Covad Communications
6478 1624 307 35 AT&T Worldnet Services
20115 1586 1556 639 Charter Communications
7545 1498 300 81 TPG Internet Pty Ltd

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 2654 2258 Time Warner Telecom
17974 1808 1778 PT TELEKOMUNIKASI INDONESIA
1785 1789 1660 AppliedTheory Corporation
6478 1624 1589 AT&T Worldnet Services
18566 1760 1531 Covad Communications
7545 1498 1417 TPG Internet Pty Ltd
4755 1445 1279 Videsh Sanchar Nigam Ltd. Aut
4766 1869 1271 Korea Telecom (KIX)
10620 1426 1269 TVCABLE BOGOTA
11492 1263 1248 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
45083 UNALLOCATED 1.45.0.0/16 4808 CNCGROUP IP network:
45083 UNALLOCATED 1.45.92.0/22 4808 CNCGROUP IP network:
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

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
41.57.192.0/18 22750 BCSNET
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 NetworkTwo Communications Gro
62.61.220.0/24 24974 Tachyon Europe BV - Wireless

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 /11:77 /12:220
/13:452 /14:780 /15:1402 /16:11720 /17:5988 /18:9771
/19:19662 /20:25839 /21:25976 /22:33994 /23:33065 /24:187004
/25:375 /26:352 /27:168 /28:274 /29:198 /30:649
/31:60 /32:621

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

ASN No of nets Total ann. Description
6389 2261 3665 bellsouth.net, inc.
18566 1728 1760 Covad Communications
6478 1578 1624 AT&T Worldnet Services
4323 1351 2654 Time Warner Telecom
10620 1316 1426 TVCABLE BOGOTA
11492 1212 1263 Cable One
23456 1153 2225 >>UNKNOWN<<
7011 1062 1161 Citizens Utilities
1785 1058 1789 AppliedTheory Corporation
286 876 1015 KPNQwest Backbone AS

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

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

1:257 2:84 4:18 5:1 8:349 12:2010
13:1 14:438 15:15 16:3 17:8 20:9
23:5 24:1618 27:724 31:221 32:126 33:3
34:2 37:1 38:764 40:101 41:2294 42:1
44:3 46:855 47:4 49:173 50:358 52:13
55:5 56:2 57:39 58:844 59:481 60:387
61:1242 62:1026 63:1935 64:3949 65:2326 66:4377
67:1839 68:1257 69:3061 70:745 71:351 72:1941
73:3 74:2400 75:313 76:345 77:879 78:695
79:483 80:1101 81:836 82:518 83:466 84:665
85:1077 86:613 87:787 88:337 89:1624 90:181
91:3717 92:517 93:1074 94:1290 95:800 96:453
97:250 98:827 99:35 101:62 103:1 106:1
107:4 108:84 109:964 110:546 111:692 112:325
113:390 114:527 115:683 116:957 117:674 118:804
119:1133 120:290 121:675 122:1632 123:1052 124:1248
125:1265 128:266 129:167 130:172 131:563 132:113
133:20 134:219 135:49 136:214 137:142 138:302
139:115 140:487 141:174 142:401 143:390 144:484
145:53 146:442 147:215 148:591 149:233 150:170
151:187 152:305 153:180 154:3 155:394 156:190
157:355 158:132 159:382 160:316 161:245 162:277
163:164 164:488 165:368 166:514 167:424 168:723
169:155 170:781 171:75 172:1 173:1510 174:534
175:359 177:71 178:866 180:817 181:7 182:421
183:197 184:324 185:1 186:1136 187:810 188:994
189:1000 190:4842 192:5811 193:4855 194:3517 195:3109
196:1193 197:16 198:3576 199:3920 200:5525 201:1512
202:8350 203:8445 204:4126 205:2329 206:2747 207:3029
208:3971 209:3516 210:2735 211:1363 212:2037 213:1779
214:733 215:67 216:4883 217:1668 218:560 219:384
220:1199 221:480 222:341 223:137

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 17 Apr, 2011

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

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

BGP routing table entries examined: 349027
Prefixes after maximum aggregation: 158410
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 175014
Total ASes present in the Internet Routing Table: 36150
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31250
Origin ASes announcing only one prefix: 15039
Transit ASes present in the Internet Routing Table: 4900
Transit-only ASes present in the Internet Routing Table: 114
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: 1949
Unregistered ASNs in the Routing Table: 366
Number of 32-bit ASNs allocated by the RIRs: 1300
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2212
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 146
Number of addresses announced to Internet: 2427987200
Equivalent to 144 /8s, 184 /16s and 37 /24s
Percentage of available address space announced: 65.5
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.5
Total number of prefixes smaller than registry allocations: 143348

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

Prefixes being announced by APNIC Region ASes: 83728
Total APNIC prefixes after maximum aggregation: 28483
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81570
Unique aggregates announced from the APNIC address blocks: 36999
APNIC Region origin ASes present in the Internet Routing Table: 4350
APNIC Prefixes per ASN: 18.75
APNIC Region origin ASes announcing only one prefix: 1231
APNIC Region transit ASes present in the Internet Routing Table: 663
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 608084224
Equivalent to 36 /8s, 62 /16s and 161 /24s
Percentage of available APNIC address space announced: 77.1

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

Prefixes being announced by ARIN Region ASes: 138383
Total ARIN prefixes after maximum aggregation: 70525
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111207
Unique aggregates announced from the ARIN address blocks: 45089
ARIN Region origin ASes present in the Internet Routing Table: 14240
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5451
ARIN Region transit ASes present in the Internet Routing Table: 1410
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: 797910528
Equivalent to 47 /8s, 143 /16s and 38 /24s
Percentage of available ARIN address space announced: 63.4

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

Prefixes being announced by RIPE Region ASes: 84361
Total RIPE prefixes after maximum aggregation: 47740
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 77463
Unique aggregates announced from the RIPE address blocks: 50788
RIPE Region origin ASes present in the Internet Routing Table: 15522
RIPE Prefixes per ASN: 4.99
RIPE Region origin ASes announcing only one prefix: 7795
RIPE Region transit ASes present in the Internet Routing Table: 2416
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: 466046720
Equivalent to 27 /8s, 199 /16s and 79 /24s
Percentage of available RIPE address space announced: 75.1

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

Prefixes being announced by LACNIC Region ASes: 32062
Total LACNIC prefixes after maximum aggregation: 7333
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31178
Unique aggregates announced from the LACNIC address blocks: 16416
LACNIC Region origin ASes present in the Internet Routing Table: 1429
LACNIC Prefixes per ASN: 21.82
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: 82206208
Equivalent to 4 /8s, 230 /16s and 94 /24s
Percentage of available LACNIC address space announced: 54.4

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: 7579
Total AfriNIC prefixes after maximum aggregation: 1812
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 5957
Unique aggregates announced from the AfriNIC address blocks: 1825
AfriNIC Region origin ASes present in the Internet Routing Table: 439
AfriNIC Prefixes per ASN: 13.57
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 99
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: 22749440
Equivalent to 1 /8s, 91 /16s and 33 /24s
Percentage of available AfriNIC address space announced: 33.9

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 1869 9476 598 Korea Telecom (KIX)
7545 1494 300 77 TPG Internet Pty Ltd
17974 1466 470 34 PT Telekomunikasi Indonesia
4755 1444 638 166 TATA Communications formerly
24560 1137 322 203 Bharti Airtel Ltd., Telemedia
9583 1058 78 496 Sify Limited
9829 1008 870 50 National Internet Backbone
4808 950 2028 277 CNCGROUP IP network China169
17488 940 164 98 Hathway IP Over Cable Interne
18101 933 116 138 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 3664 3822 256 BellSouth.net Inc.
4323 2658 1106 397 tw telecom holdings, inc.
1785 1791 681 128 PaeTec Communications, Inc.
18566 1706 338 242 Covad Communications Co.
6478 1624 307 35 AT&T Services, Inc.
20115 1535 1552 639 Charter Communications
19262 1494 4949 298 Verizon Online LLC
7018 1365 6962 894 AT&T Services, Inc.
22773 1297 2865 84 Cox Communications Inc.
2386 1272 536 914 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 516 1780 319 UPC Broadband
34984 505 98 183 BILISIM TELEKOM
29049 467 33 34 AzerSat LLC.
3292 454 1997 391 TDC Data Networks
8866 446 134 26 Bulgarian Telecommunication C
20940 440 127 338 Akamai Technologies European
3320 417 7607 363 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 405 577 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 1426 265 157 Types of queries are: POCs, o
28573 1261 972 86 Types of queries are: POCs, o
8151 1228 2667 365 Uninet S.A. de C.V.
6503 905 354 72 Axtel, S.A.B. de C.V.
7303 904 466 137 Telecom Argentina S.A.
14420 663 53 91 CORPORACION NACIONAL DE TELEC
22047 568 310 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.
14117 483 38 42 Telefonica del Sur 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 837 445 11 TEDATA
24863 775 147 37 LINKdotNET AS number
15475 430 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 235 215 13 Itissalat Al-MAGHRIB
24835 222 78 10 RAYA Telecom - Egypt
33776 195 12 8 Starcomms Nigeria Limited
29571 161 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 3664 3822 256 BellSouth.net Inc.
4323 2658 1106 397 tw telecom holdings, inc.
23456 2212 645 1209 32-bit ASN transition
4766 1869 9476 598 Korea Telecom (KIX)
1785 1791 681 128 PaeTec Communications, Inc.
18566 1706 338 242 Covad Communications Co.
6478 1624 307 35 AT&T Services, Inc.
20115 1535 1552 639 Charter Communications
7545 1494 300 77 TPG Internet Pty Ltd
19262 1494 4949 298 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 2658 2261 tw telecom holdings, inc.
1785 1791 1663 PaeTec Communications, Inc.
6478 1624 1589 AT&T Services, Inc.
18566 1706 1464 Covad Communications Co.
17974 1466 1432 PT Telekomunikasi Indonesia
7545 1494 1417 TPG Internet Pty Ltd
4755 1444 1278 TATA Communications formerly
4766 1869 1271 Korea Telecom (KIX)
10620 1426 1269 Types of queries are: POCs, o
11492 1263 1248 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
45083 UNALLOCATED 1.45.0.0/16 4808 CNCGROUP IP network
45083 UNALLOCATED 1.45.92.0/22 4808 CNCGROUP IP network
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.

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
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
41.57.192.0/18 22750 BCSNET
41.223.92.0/22 36936 >>UNKNOWN<<
45.127.0.0/16 13767 DataBank Holdings, Ltd.
62.61.220.0/24 24974 Tachyon Europe BV

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 /11:76 /12:218
/13:452 /14:773 /15:1376 /16:11577 /17:5726 /18:9404
/19:19236 /20:25190 /21:25476 /22:33373 /23:32243 /24:183417
/25:10 /26:17 /27:18 /28:147 /29:89 /30:46
/31:0 /32:105

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

ASN No of nets Total ann. Description
6389 2260 3664 BellSouth.net Inc.
18566 1680 1706 Covad Communications Co.
6478 1578 1624 AT&T Services, Inc.
4323 1353 2658 tw telecom holdings, inc.
10620 1316 1426 Types of queries are: POCs, o
11492 1212 1263 CABLE ONE, INC.
23456 1143 2212 32-bit ASN transition
7011 1062 1161 Frontier Communications of Am
1785 1058 1791 PaeTec Communications, Inc.
22773 841 1297 Cox Communications Inc.

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

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

1:255 2:63 4:14 5:1 8:348 12:2006
13:1 14:425 15:15 16:3 17:8 20:9
23:5 24:1602 27:719 31:220 32:55 33:3
34:2 37:1 38:760 40:101 41:2294 42:1
44:3 46:851 47:4 49:173 50:358 52:13
55:5 56:2 57:29 58:793 59:468 60:385
61:1065 62:1009 63:1917 64:3895 65:2322 66:4336
67:1813 68:1080 69:2953 70:699 71:345 72:1907
73:1 74:2337 75:299 76:337 77:840 78:688
79:472 80:1088 81:830 82:508 83:459 84:646
85:1067 86:563 87:769 88:331 89:1587 90:181
91:3713 92:513 93:1059 94:1262 95:786 96:448
97:250 98:819 99:35 101:54 103:1 106:1
107:4 108:84 109:954 110:537 111:684 112:315
113:388 114:502 115:673 116:917 117:654 118:766
119:1126 120:287 121:649 122:1629 123:1048 124:1220
125:1251 128:213 129:159 130:166 131:562 132:103
133:20 134:209 135:49 136:211 137:139 138:300
139:101 140:464 141:174 142:382 143:389 144:480
145:53 146:437 147:204 148:582 149:232 150:162
151:186 152:303 153:180 154:2 155:393 156:187
157:325 158:132 159:375 160:314 161:237 162:276
163:154 164:488 165:348 166:514 167:424 168:718
169:153 170:776 171:75 172:1 173:1492 174:530
175:347 177:71 178:854 180:807 181:7 182:408
183:197 184:243 185:1 186:1134 187:808 188:990
189:1000 190:4820 192:5729 193:4831 194:3462 195:2969
196:1191 197:16 198:3505 199:3880 200:5510 201:1496
202:8112 203:8330 204:4047 205:2301 206:2629 207:2951
208:3939 209:3470 210:2656 211:1352 212:1997 213:1723
214:725 215:65 216:4838 217:1659 218:544 219:383
220:1192 221:459 222:305 223:122

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 17 Apr, 2011

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

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

BGP routing table entries examined: 354289
Prefixes after maximum aggregation: 160403
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 175173
Total ASes present in the Internet Routing Table: 37318
Prefixes per ASN: 9.49
Origin-only ASes present in the Internet Routing Table: 31275
Origin ASes announcing only one prefix: 15045
Transit ASes present in the Internet Routing Table: 5042
Transit-only ASes present in the Internet Routing Table: 136
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: 599
Unregistered ASNs in the Routing Table: 263
Number of 32-bit ASNs allocated by the RIRs: 1300
Number of 32-bit ASNs visible in the Routing Table: 1001
Prefixes from 32-bit ASNs in the Routing Table: 2217
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 147
Number of addresses announced to Internet: 2411207872
Equivalent to 143 /8s, 184 /16s and 28 /24s
Percentage of available address space announced: 65.1
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.5
Total number of prefixes smaller than registry allocations: 146893

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

Prefixes being announced by APNIC Region ASes: 88070
Total APNIC prefixes after maximum aggregation: 29864
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 85129
Unique aggregates announced from the APNIC address blocks: 37051
APNIC Region origin ASes present in the Internet Routing Table: 4403
APNIC Prefixes per ASN: 19.33
APNIC Region origin ASes announcing only one prefix: 1223
APNIC Region transit ASes present in the Internet Routing Table: 700
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 609117472
Equivalent to 36 /8s, 78 /16s and 101 /24s
Percentage of available APNIC address space announced: 77.2

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

Prefixes being announced by ARIN Region ASes: 139712
Total ARIN prefixes after maximum aggregation: 71004
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112207
Unique aggregates announced from the ARIN address blocks: 45102
ARIN Region origin ASes present in the Internet Routing Table: 14318
ARIN Prefixes per ASN: 7.84
ARIN Region origin ASes announcing only one prefix: 5466
ARIN Region transit ASes present in the Internet Routing Table: 1490
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: 797923840
Equivalent to 47 /8s, 143 /16s and 90 /24s
Percentage of available ARIN address space announced: 63.4

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

Prefixes being announced by RIPE Region ASes: 83949
Total RIPE prefixes after maximum aggregation: 47764
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 77062
Unique aggregates announced from the RIPE address blocks: 50762
RIPE Region origin ASes present in the Internet Routing Table: 15526
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7799
RIPE Region transit ASes present in the Internet Routing Table: 2427
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: 743
Number of RIPE addresses announced to Internet: 466046080
Equivalent to 27 /8s, 199 /16s and 76 /24s
Percentage of available RIPE address space announced: 75.1

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

Prefixes being announced by LACNIC Region ASes: 32415
Total LACNIC prefixes after maximum aggregation: 7435
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31377
Unique aggregates announced from the LACNIC address blocks: 16405
LACNIC Region origin ASes present in the Internet Routing Table: 1437
LACNIC Prefixes per ASN: 21.84
LACNIC Region origin ASes announcing only one prefix: 429
LACNIC Region transit ASes present in the Internet Routing Table: 263
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: 194
Number of LACNIC addresses announced to Internet: 82240640
Equivalent to 4 /8s, 230 /16s and 228 /24s
Percentage of available LACNIC address space announced: 54.5

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: 7644
Total AfriNIC prefixes after maximum aggregation: 1820
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6017
Unique aggregates announced from the AfriNIC address blocks: 1882
AfriNIC Region origin ASes present in the Internet Routing Table: 441
AfriNIC Prefixes per ASN: 13.64
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 100
Average AfriNIC Region AS path length visible: 4.8
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: 22732800
Equivalent to 1 /8s, 90 /16s and 224 /24s
Percentage of available AfriNIC address space announced: 33.9

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 2424 9484 902 Korea Telecom (KIX)
17974 1808 515 29 PT TELEKOMUNIKASI INDONESIA
7545 1541 300 78 TPG Internet Pty Ltd
4755 1446 638 167 TATA Communications formerly
24560 1137 322 203 Bharti Airtel Ltd., Telemedia
4808 1064 2140 293 CNCGROUP IP network: China169
9583 1055 77 496 Sify Limited
9829 1008 870 50 BSNL National Internet Backbo
17488 942 164 98 Hathway IP Over Cable Interne
18101 933 116 139 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 3662 3822 255 bellsouth.net, inc.
4323 2661 1090 396 Time Warner Telecom
1785 1788 681 128 PaeTec Communications, Inc.
18566 1759 349 229 Covad Communications
6478 1624 307 35 AT&T Worldnet Services
20115 1535 1552 639 Charter Communications
19262 1495 4949 298 Verizon Global Networks
7018 1351 6801 880 AT&T WorldNet Services
22773 1298 2865 84 Cox Communications, Inc.
2386 1270 536 913 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 518 1780 320 UPC Distribution Services
34984 505 98 183 BILISIM TELEKOM
29049 467 33 34 AzerSat LLC.
3292 454 1997 391 TDC Tele Danmark
8866 446 134 26 Bulgarian Telecommunication C
20940 436 126 335 Akamai Technologies European
3320 418 7607 364 Deutsche Telekom AG
12479 406 577 6 Uni2 Autonomous System
8551 403 353 46 Bezeq International
8402 400 320 11 Corbina telecom

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 1426 265 157 TVCABLE BOGOTA
28573 1279 972 86 NET Servicos de Comunicao S.A
8151 1247 2686 374 UniNet S.A. de C.V.
7303 928 467 148 Telecom Argentina Stet-France
6503 906 354 72 AVANTEL, S.A.
14420 663 53 91 CORPORACION NACIONAL DE TELEC
22047 568 310 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 480 53 53 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 836 445 11 TEDATA
24863 778 147 39 LINKdotNET AS number
15475 422 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 235 215 13 Itissalat Al-MAGHRIB
24835 222 78 10 RAYA Telecom - Egypt
33776 195 12 8 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/current/data-ASnet-AFRINIC

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

ASN No of nets /20 equiv MaxAgg Description
6389 3662 3822 255 bellsouth.net, inc.
4323 2661 1090 396 Time Warner Telecom
4766 2424 9484 902 Korea Telecom (KIX)
23456 2217 645 1208 32-bit ASN transition
17974 1808 515 29 PT TELEKOMUNIKASI INDONESIA
1785 1788 681 128 PaeTec Communications, Inc.
18566 1759 349 229 Covad Communications
6478 1624 307 35 AT&T Worldnet Services
7545 1541 300 78 TPG Internet Pty Ltd
20115 1535 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 2661 2265 Time Warner Telecom
17974 1808 1779 PT TELEKOMUNIKASI INDONESIA
1785 1788 1660 PaeTec Communications, Inc.
6478 1624 1589 AT&T Worldnet Services
18566 1759 1530 Covad Communications
4766 2424 1522 Korea Telecom (KIX)
7545 1541 1463 TPG Internet Pty Ltd
4755 1446 1279 TATA Communications formerly
10620 1426 1269 TVCABLE BOGOTA
11492 1263 1248 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
45083 UNALLOCATED 1.45.0.0/16 4808 CNCGROUP IP network:
45083 UNALLOCATED 1.45.92.0/22 4808 CNCGROUP IP network:
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

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

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

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 /11:76 /12:218
/13:452 /14:775 /15:1376 /16:11607 /17:5740 /18:9473
/19:19150 /20:25186 /21:25569 /22:33615 /23:32571 /24:185270
/25:1123 /26:1274 /27:701 /28:40 /29:8 /30:2
/31:0 /32:6

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

ASN No of nets Total ann. Description
6389 2259 3662 bellsouth.net, inc.
18566 1727 1759 Covad Communications
6478 1578 1624 AT&T Worldnet Services
4323 1356 2661 Time Warner Telecom
10620 1316 1426 TVCABLE BOGOTA
11492 1212 1263 Cable One
23456 1145 2217 32-bit ASN transition
7011 1062 1161 Citizens Utilities
1785 1058 1788 PaeTec Communications, Inc.
22773 842 1298 Cox Communications, Inc.

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

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

1:257 2:64 4:14 5:1 8:348 12:2007
13:1 14:438 15:15 16:3 17:8 20:9
23:5 24:1604 27:721 31:221 32:60 33:3
34:2 37:1 38:764 40:101 41:2352 42:1
44:3 46:852 47:4 49:173 50:358 52:13
55:5 56:2 57:31 58:841 59:479 60:387
61:1238 62:1008 63:1919 64:3924 65:2325 66:4349
67:1814 68:1081 69:2957 70:700 71:345 72:1907
73:1 74:2338 75:299 76:337 77:840 78:688
79:463 80:1089 81:828 82:504 83:456 84:646
85:1068 86:563 87:753 88:331 89:1587 90:181
91:3700 92:513 93:1059 94:1258 95:787 96:453
97:250 98:821 99:35 101:62 103:1 106:1
107:4 108:84 109:954 110:545 111:692 112:325
113:389 114:524 115:681 116:941 117:674 118:805
119:1139 120:290 121:667 122:1608 123:1064 124:1248
125:1265 128:265 129:164 130:172 131:565 132:113
133:20 134:217 135:49 136:214 137:142 138:300
139:103 140:487 141:174 142:398 143:391 144:484
145:53 146:441 147:204 148:592 149:233 150:170
151:187 152:307 153:180 154:3 155:393 156:190
157:354 158:132 159:382 160:315 161:244 162:277
163:164 164:488 165:350 166:514 167:426 168:723
169:154 170:781 171:75 172:1 173:1492 174:529
175:359 177:71 178:843 180:817 181:7 182:420
183:197 184:243 185:1 186:1131 187:807 188:989
189:1000 190:4836 192:5781 193:4829 194:3468 195:2966
196:1203 197:16 198:3563 199:3911 200:5528 201:1499
202:8344 203:8457 204:4125 205:2321 206:2728 207:3025
208:3951 209:3504 210:2725 211:1358 212:1977 213:1725
214:734 215:67 216:4862 217:1657 218:553 219:384
220:1193 221:479 222:341 223:137

End of report
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Friday, April 15, 2011

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

* BGP Routing Table Analysis Reports *
Routing Table Report 00:00 GMT Sat 16 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: 358685
Prefixes after maximum aggregation: 161707
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 174945
Total ASes present in the Internet Routing Table: 37334
Prefixes per ASN: 9.61
Origin-only ASes present in the Internet Routing Table: 31370
Origin ASes announcing only one prefix: 14988
Transit ASes present in the Internet Routing Table: 4956
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 26
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 2870
Unregistered ASNs in the Routing Table: 280
Number of 32-bit ASNs allocated by the RIRs: 1295
Number of 32-bit ASNs visible in the Routing Table: 1008
Prefixes from 32-bit ASNs in the Routing Table: 2223
Special use prefixes present in the Routing Table: 76
Prefixes being announced from unallocated address space: 164
Number of addresses announced to Internet: 2412550713
Equivalent to 143 /8s, 204 /16s and 154 /24s
Percentage of available address space announced: 65.1
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.5
Total number of prefixes smaller than registry allocations: 148567

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

Prefixes being announced by APNIC Region ASes: 86056
Total APNIC prefixes after maximum aggregation: 28773
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 83147
Unique aggregates announced from the APNIC address blocks: 37092
APNIC Region origin ASes present in the Internet Routing Table: 4390
APNIC Prefixes per ASN: 18.94
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 683
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 26
Number of APNIC region 32-bit ASNs visible in the Routing Table: 48
Number of APNIC addresses announced to Internet: 609121729
Equivalent to 36 /8s, 78 /16s and 117 /24s
Percentage of available APNIC address space announced: 77.2

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

Prefixes being announced by ARIN Region ASes: 142850
Total ARIN prefixes after maximum aggregation: 73073
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 114946
Unique aggregates announced from the ARIN address blocks: 45039
ARIN Region origin ASes present in the Internet Routing Table: 14337
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5453
ARIN Region transit ASes present in the Internet Routing Table: 1453
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: 797967384
Equivalent to 47 /8s, 144 /16s and 4 /24s
Percentage of available ARIN address space announced: 63.4

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

Prefixes being announced by RIPE Region ASes: 87189
Total RIPE prefixes after maximum aggregation: 48055
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 79519
Unique aggregates announced from the RIPE address blocks: 50417
RIPE Region origin ASes present in the Internet Routing Table: 15545
RIPE Prefixes per ASN: 5.12
RIPE Region origin ASes announcing only one prefix: 7740
RIPE Region transit ASes present in the Internet Routing Table: 2411
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 21
Number of RIPE region 32-bit ASNs visible in the Routing Table: 750
Number of RIPE addresses announced to Internet: 467135804
Equivalent to 27 /8s, 215 /16s and 237 /24s
Percentage of available RIPE address space announced: 75.3

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

Prefixes being announced by LACNIC Region ASes: 32371
Total LACNIC prefixes after maximum aggregation: 7460
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 31370
Unique aggregates announced from the LACNIC address blocks: 16406
LACNIC Region origin ASes present in the Internet Routing Table: 1434
LACNIC Prefixes per ASN: 21.88
LACNIC Region origin ASes announcing only one prefix: 427
LACNIC Region transit ASes present in the Internet Routing Table: 256
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: 194
Number of LACNIC addresses announced to Internet: 82245004
Equivalent to 4 /8s, 230 /16s and 245 /24s
Percentage of available LACNIC address space announced: 54.5

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: 7702
Total AfriNIC prefixes after maximum aggregation: 1830
AfriNIC Deaggregation factor: 4.21
Prefixes being announced from the AfriNIC address blocks: 6061
Unique aggregates announced from the AfriNIC address blocks: 1878
AfriNIC Region origin ASes present in the Internet Routing Table: 447
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 99
Average AfriNIC Region AS path length visible: 4.0
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: 22760704
Equivalent to 1 /8s, 91 /16s and 77 /24s
Percentage of available AfriNIC address space announced: 33.9

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 1869 9476 598 Korea Telecom (KIX)
17974 1810 507 30 PT TELEKOMUNIKASI INDONESIA
7545 1497 300 80 TPG Internet Pty Ltd
4755 1445 638 166 Videsh Sanchar Nigam Ltd. Aut
24560 1137 322 203 Bharti Airtel Ltd.
9583 1056 77 497 Sify Limited
9829 1008 870 50 BSNL National Internet Backbo
17488 957 162 98 Hathway IP Over Cable Interne
18101 934 116 139 Reliance Infocom Ltd Internet
4808 879 1924 262 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 3666 3822 256 bellsouth.net, inc.
4323 2655 1106 396 Time Warner Telecom
1785 1789 681 129 AppliedTheory Corporation
18566 1759 349 229 Covad Communications
6478 1624 307 35 AT&T Worldnet Services
20115 1586 1556 639 Charter Communications
19262 1495 4933 298 Verizon Global Networks
7018 1362 6962 890 AT&T WorldNet Services
22773 1298 2865 84 Cox Communications, Inc.
2386 1271 535 915 AT&T Data Communications Serv

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

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

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 1426 265 157 TVCABLE BOGOTA
28573 1279 972 86 Types of queries are: POCs, o
8151 1232 2667 365 Uninet S.A. de C.V.
7303 928 467 148 Telecom Argentina Stet-France
6503 902 354 73 AVANTEL, S.A.
14420 663 53 91 Types of queries are: POCs, o
22047 568 310 15 Types of queries are: POCs, o
3816 517 225 99 COLOMBIA TELECOMUNICACIONES S
27947 489 54 48 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 839 445 11 TEDATA
24863 778 147 39 LINKdotNET AS number
15475 430 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 235 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 222 78 10 RAYA Telecom - Egypt
29571 161 17 11 Ci Telecom Autonomous system
16637 150 441 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 3666 3822 256 bellsouth.net, inc.
4323 2655 1106 396 Time Warner Telecom
23456 2223 646 1208 >>UNKNOWN<<
4766 1869 9476 598 Korea Telecom (KIX)
17974 1810 507 30 PT TELEKOMUNIKASI INDONESIA
1785 1789 681 129 AppliedTheory Corporation
18566 1759 349 229 Covad Communications
6478 1624 307 35 AT&T Worldnet Services
20115 1586 1556 639 Charter Communications
7545 1497 300 80 TPG Internet Pty Ltd

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 2655 2259 Time Warner Telecom
17974 1810 1780 PT TELEKOMUNIKASI INDONESIA
1785 1789 1660 AppliedTheory Corporation
6478 1624 1589 AT&T Worldnet Services
18566 1759 1530 Covad Communications
7545 1497 1417 TPG Internet Pty Ltd
4755 1445 1279 Videsh Sanchar Nigam Ltd. Aut
4766 1869 1271 Korea Telecom (KIX)
10620 1426 1269 TVCABLE BOGOTA
11492 1263 1248 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
--------------------------------

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
31.7.168.0/21 48057 Company for interactive techn
31.10.8.0/21 34709 AS-ALTEGROSKY
31.10.32.0/20 42004 Unlimited Group
31.10.56.0/21 23456 >>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 /8:19 /9:12 /10:26 /11:77 /12:220
/13:452 /14:780 /15:1404 /16:11710 /17:5984 /18:9765
/19:19652 /20:25821 /21:25960 /22:34048 /23:33082 /24:187057
/25:372 /26:354 /27:166 /28:174 /29:204 /30:657
/31:60 /32:629

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

ASN No of nets Total ann. Description
6389 2262 3666 bellsouth.net, inc.
18566 1727 1759 Covad Communications
6478 1578 1624 AT&T Worldnet Services
4323 1351 2655 Time Warner Telecom
10620 1316 1426 TVCABLE BOGOTA
11492 1212 1263 Cable One
23456 1154 2223 >>UNKNOWN<<
7011 1062 1161 Citizens Utilities
1785 1058 1789 AppliedTheory Corporation
286 876 1015 KPNQwest Backbone AS

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

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

1:256 2:84 4:18 5:1 8:349 12:2010
13:1 14:436 15:15 16:3 17:8 20:9
23:5 24:1619 27:725 31:220 32:126 33:3
34:2 37:1 38:764 40:101 41:2383 42:1
44:3 46:853 47:4 49:173 50:358 52:13
55:5 56:2 57:40 58:845 59:480 60:387
61:1241 62:1024 63:1933 64:3948 65:2328 66:4376
67:1840 68:1257 69:3061 70:745 71:351 72:1941
73:3 74:2398 75:313 76:345 77:879 78:696
79:479 80:1100 81:836 82:507 83:465 84:665
85:1080 86:613 87:786 88:345 89:1623 90:181
91:3720 92:517 93:1056 94:1289 95:801 96:453
97:250 98:827 99:35 101:62 103:1 106:1
107:4 108:83 109:961 110:543 111:694 112:325
113:390 114:528 115:683 116:956 117:675 118:805
119:1132 120:290 121:677 122:1631 123:1064 124:1247
125:1266 128:266 129:167 130:172 131:562 132:104
133:20 134:219 135:49 136:214 137:142 138:302
139:115 140:488 141:174 142:401 143:393 144:484
145:53 146:442 147:215 148:585 149:233 150:171
151:187 152:307 153:180 154:3 155:394 156:190
157:355 158:132 159:382 160:315 161:244 162:277
163:164 164:488 165:368 166:514 167:427 168:725
169:155 170:780 171:75 172:1 173:1510 174:534
175:356 177:71 178:868 180:816 181:7 182:420
183:196 184:324 185:1 186:1136 187:809 188:993
189:999 190:4840 192:5815 193:4843 194:3517 195:3111
196:1216 197:16 198:3583 199:3924 200:5510 201:1500
202:8353 203:8449 204:4128 205:2330 206:2748 207:3031
208:3968 209:3517 210:2733 211:1363 212:2030 213:1773
214:734 215:67 216:4883 217:1671 218:560 219:386
220:1198 221:480 222:341 223:137

End of report
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