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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 12 May, 2001
Analysis Summary
----------------
BGP routing table entries examined: 105194
Origin ASes present in the Internet Routing Table: 10780
Origin ASes announcing only one prefix: 3937
Transit ASes present in the Internet Routing Table: 1430
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 14
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 1
Number of addresses announced to Internet: 1242279400
Equivalent to 74 /8s, 11 /16s and 173 /24s
Percentage of available address space announced: 33.5
Percentage of allocated address space announced: 64.6
Percentage of available address space allocated: 51.9
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15542
Prefixes being announced from the APNIC address blocks: 14109
APNIC Region origin ASes present in the Internet Routing Table: 1238
APNIC Region origin ASes announcing only one prefix: 438
APNIC Region transit ASes present in the Internet Routing Table: 205
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 68039699
Equivalent to 4 /8s, 14 /16s and 52 /24s
Percentage of available APNIC address space announced: 66.9
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431
APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 72983
Prefixes being announced from the ARIN address blocks: 50187
ARIN Region origin ASes present in the Internet Routing Table: 6570
ARIN Region origin ASes announcing only one prefix: 1973
ARIN Region transit ASes present in the Internet Routing Table: 684
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 182654274
Equivalent to 10 /8s, 227 /16s and 21 /24s
Percentage of available ARIN address space announced: 83.7
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
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
ARIN Address Blocks 63/8, 64/7, 66/8, 199/8, 200/8, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 16655
Prefixes being announced from the RIPE address blocks: 13012
RIPE Region origin ASes present in the Internet Routing Table: 2969
RIPE Region origin ASes announcing only one prefix: 1522
RIPE Region transit ASes present in the Internet Routing Table: 540
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 114976170
Equivalent to 6 /8s, 218 /16s and 101 /24s
Percentage of available RIPE address space announced: 76.1
RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /19 equiv Description
1221 1755 674 Telstra
2764 885 164 connect.com.au pty ltd
703 383 205 UUNET Technologies, Inc.
2907 362 883 SINET Japan
4755 320 111 VSNL India
7657 206 14 The Internet Group Limited
7539 200 90 Delegated to TWNIC for subseq
4134 194 636 Data Communications Bureau
7474 188 86 Optus Communications
7545 153 10 TPG Internet Pty Ltd
17561 152 69 Internet service provision to
4766 147 598 KORnet Powered BY Korea Telec
4740 141 10 Ozemail
4786 125 7 NetConnect Communications Pty
9443 125 23 INTERNETPRIMUS-AS-A
7586 123 9 Paradox Digital Pty. Ltd
4736 120 17 Magna Data
7617 120 46 One.Net Pty Ltd
4763 112 34 Telstra New Zealand
9583 110 30 Satyam Infoway Ltd.,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 538 803 UUNET Technologies, Inc.
15870 447 3 Global Center Frankfurt
3301 387 401 TeliaNet Sweden
1257 278 263 Swipnet AB
1270 263 440 UUNET Germany
3215 213 224 RAIN
680 212 938 Deutschef Forschurgsnetz
5515 209 337 Sonera Finland
719 186 146 LANLINK
786 186 952 JANET IP Service
3320 163 710 Deutsche Telekom AG
517 130 136 Xlink
5400 128 33 Concert Internet Plus Europea
8708 127 7 Romania Data System
3303 122 296 Swisscom
2856 120 396 BTnet UK Regional network
1290 102 204 PSINet UK Ltd.
1267 100 978 IUnet S.p.A
1901 92 77 EUnet Austria
1849 90 79 UUNET UK (formerly PIPEX)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
701 2368 3786 UUNET Technologies, Inc.
705 1144 54 UUNET Technologies, Inc.
7018 1016 3282 AT&T
1 951 4464 BBN Planet
7046 801 553 UUNET Technologies, Inc.
3491 676 180 CAIS Internet
1239 638 1606 Sprint ICM-Inria
2914 599 1185 Verio, Inc.
3561 544 1216 Cable & Wireless USA
4293 499 52 Cable & Wireless USA
18994 491 5 Global Crossing
690 464 54 Merit Network
209 459 727 Qwest
2548 409 506 Digital Express Group, Inc.
174 394 2670 PSINet Inc.
3908 384 233 Supernet, Inc.
3602 358 73 Sprint Canada
3549 348 526 Global Crossing
3967 340 228 Exodus Communication
4323 340 136 Time Warner Communications, I
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2368 3786 UUNET Technologies, Inc.
1221 1755 674 Telstra
705 1144 54 UUNET Technologies, Inc.
7018 1016 3282 AT&T
1 951 4464 BBN Planet
2764 885 164 connect.com.au pty ltd
7046 801 553 UUNET Technologies, Inc.
3491 676 180 CAIS Internet
1239 638 1606 Sprint ICM-Inria
2914 599 1185 Verio, Inc.
3561 544 1216 Cable & Wireless USA
702 538 803 UUNET Technologies, Inc.
4293 499 52 Cable & Wireless USA
18994 491 5 Global Crossing
690 464 54 Merit Network
209 459 727 Qwest
15870 447 3 Global Center Frankfurt
2548 409 506 Digital Express Group, Inc.
174 394 2670 PSINet Inc.
3301 387 401 TeliaNet Sweden
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
60002 RESERVED 64.76.148.0/24 19583 *
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT
1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's
1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's
1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT
5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies,
17441 UNALLOCATED 203.131.192.0/24 6347 SAVVIS Communication
65502 PRIVATE 203.166.83.0/24 10084 Western Australian I
65500 PRIVATE 203.166.86.0/24 10084 Western Australian I
5555 UNALLOCATED 205.110.64.0/24 721 DLA Systems Automati
5555 UNALLOCATED 205.110.68.0/22 721 DLA Systems Automati
5555 UNALLOCATED 205.110.72.0/21 721 DLA Systems Automati
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised IANA Reserved Addresses
----------------------------------
Network Origin AS Description
201.115.100.0/24 7018 AT&T
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:5 /10:6 /11:9 /12:30
/13:73 /14:203 /15:341 /16:6906 /17:1146 /18:2127
/19:6642 /20:5115 /21:4452 /22:6708 /23:8654 /24:60449
/25:262 /26:421 /27:447 /28:455 /29:368 /30:295
/31:1 /32:58
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:362 13:10 15:1 17:2 24:689
26:1 32:12 38:574 44:3 47:1 53:2
55:1 57:11 61:30 62:121 63:1940 64:1615
65:533 66:310 128:36 129:106 130:23 131:36
132:9 133:1 134:167 135:11 136:16 137:120
138:204 139:49 140:140 141:165 142:61 143:41
144:138 145:9 146:138 147:135 148:95 149:123
150:24 151:300 152:684 153:32 154:17 155:80
156:43 157:107 158:172 159:76 160:27 161:56
162:62 163:128 164:96 165:122 166:178 167:138
168:77 169:34 170:265 171:2 192:5439 193:1944
194:2084 195:772 196:393 198:3647 199:3378 200:2021
201:1 202:2462 203:4913 204:3337 205:2239 206:2772
207:2847 208:2954 209:3115 210:698 211:155 212:864
213:402 214:9 215:12 216:3007 217:220
End of report
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