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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 18 Apr, 2001
Analysis Summary
----------------
BGP routing table entries examined: 103050
Origin ASes present in the Internet Routing Table: 10605
Origin ASes announcing only one prefix: 3810
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: 17
Illegal AS announcements present in the Routing Table: 17
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 2
Number of addresses announced to Internet: 1238773216
Equivalent to 73 /8s, 214 /16s and 45 /24s
Percentage of available address space announced: 33.4
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 51.0
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15622
Prefixes being announced from the APNIC address blocks: 14129
APNIC Region origin ASes present in the Internet Routing Table: 1226
APNIC Region origin ASes announcing only one prefix: 432
APNIC Region transit ASes present in the Internet Routing Table: 201
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 70865890
Equivalent to 4 /8s, 57 /16s and 83 /24s
Percentage of available APNIC address space announced: 69.7
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: 71227
Prefixes being announced from the ARIN address blocks: 48798
ARIN Region origin ASes present in the Internet Routing Table: 6449
ARIN Region origin ASes announcing only one prefix: 1897
ARIN Region transit ASes present in the Internet Routing Table: 680
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 181251561
Equivalent to 10 /8s, 205 /16s and 173 /24s
Percentage of available ARIN address space announced: 83.1
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: 16184
Prefixes being announced from the RIPE address blocks: 12843
RIPE Region origin ASes present in the Internet Routing Table: 2928
RIPE Region origin ASes announcing only one prefix: 1481
RIPE Region transit ASes present in the Internet Routing Table: 547
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 96653993
Equivalent to 5 /8s, 194 /16s and 210 /24s
Percentage of available RIPE address space announced: 82.3
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, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /19 equiv Description
1221 2001 684 Telstra
2764 426 147 connect.com.au pty ltd
703 379 205 UUNET Technologies, Inc.
2907 365 884 SINET Japan
4755 298 110 VSNL India
4538 240 1024 China Education and Research
7539 218 105 Delegated to TWNIC for subseq
4134 188 623 Data Communications Bureau
4766 187 770 KORnet Powered BY Korea Telec
7474 177 85 Optus Communications
9269 160 22 Hong Kong CTI
1237 158 78 System Engineering Research I
4740 154 10 Ozemail
7657 154 12 The Internet Group Limited
17561 151 61 Internet service provision to
7545 148 10 TPG Internet Pty Ltd
4786 127 7 NetConnect Communications Pty
7617 124 46 One.Net Pty Ltd
7586 123 9 Paradox Digital Pty. Ltd
9797 122 10 Asia Online Australia
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 468 662 UUNET Technologies, Inc.
3301 392 337 TeliaNet Sweden
1270 280 448 UUNET Germany
1257 279 247 Swipnet AB
680 207 914 Deutschef Forschurgsnetz
3215 206 227 RAIN
719 191 146 LANLINK
5515 190 336 Sonera Finland
786 182 959 JANET IP Service
3320 159 710 Deutsche Telekom AG
517 127 134 Xlink
5400 127 33 Concert Internet Plus Europea
3303 123 298 Swisscom
2856 122 388 BTnet UK Regional network
1290 116 206 PSINet UK Ltd.
8708 115 5 Romania Data System
1849 107 223 UUNET UK (formerly PIPEX)
3352 107 241 Ibernet, Internet A
2830 98 47 UUNET UK (formerly PIPEX)
1267 97 978 IUnet S.p.A
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
701 2408 3601 UUNET Technologies, Inc.
705 1425 62 UUNET Technologies, Inc.
1 961 4496 BBN Planet
7018 954 3190 AT&T
7046 812 559 UUNET Technologies, Inc.
1239 640 1603 Sprint ICM-Inria
2914 607 1209 Verio, Inc.
3561 559 1264 Cable & Wireless USA
174 528 2751 PSINet Inc.
3549 505 514 Global Crossing
4293 477 52 Cable & Wireless USA
209 446 675 Qwest
690 419 50 Merit Network
2548 400 522 Digital Express Group, Inc.
3908 374 262 Supernet, Inc.
8151 362 218 UniNet S.A. de C.V.
4323 338 136 Time Warner Communications, I
3967 336 224 Exodus Communication
8013 336 54 PSINet Ltd. Canada
11371 332 50 Rhythms NetConnections
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2408 3601 UUNET Technologies, Inc.
1221 2001 684 Telstra
705 1425 62 UUNET Technologies, Inc.
1 961 4496 BBN Planet
7018 954 3190 AT&T
7046 812 559 UUNET Technologies, Inc.
1239 640 1603 Sprint ICM-Inria
2914 607 1209 Verio, Inc.
3561 559 1264 Cable & Wireless USA
174 528 2751 PSINet Inc.
3549 505 514 Global Crossing
4293 477 52 Cable & Wireless USA
702 468 662 UUNET Technologies, Inc.
209 446 675 Qwest
2764 426 147 connect.com.au pty ltd
690 419 50 Merit Network
2548 400 522 Digital Express Group, Inc.
3301 392 337 TeliaNet Sweden
703 379 205 UUNET Technologies, Inc.
3908 374 262 Supernet, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
2027 UNALLOCATED 150.185.0.0/16 7927 Global One Venezuela
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
2027 UNALLOCATED 150.186.0.0/16 7927 Global One Venezuela
2027 UNALLOCATED 150.187.0.0/16 7927 Global One Venezuela
2027 UNALLOCATED 150.188.0.0/16 7927 Global One Venezuela
2027 UNALLOCATED 150.189.0.0/16 7927 Global One Venezuela
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,
65535 PRIVATE 203.24.169.0/24 17486 Swiftel Communicatio
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
223.255.46.0/24 6853 GLOBAL-ONE-PORTUGAL
223.255.70.0/24 6853 GLOBAL-ONE-PORTUGAL
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:22 /9:4 /10:4 /11:10 /12:29
/13:67 /14:206 /15:329 /16:6931 /17:1119 /18:2108
/19:6591 /20:5042 /21:4416 /22:6725 /23:8620 /24:59430
/25:276 /26:407 /27:207 /28:192 /29:129 /30:127
/31:1 /32:58
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:353 13:10 15:1 17:1 24:719
26:1 32:12 38:7 44:3 47:1 53:2
55:1 57:12 61:28 62:134 63:1905 64:1463
65:788 66:271 128:31 129:112 130:20 131:26
132:9 133:1 134:168 135:8 136:16 137:115
138:248 139:52 140:141 141:174 142:56 143:41
144:132 145:9 146:134 147:134 148:153 149:134
150:27 151:176 152:814 153:33 154:15 155:77
156:39 157:109 158:61 159:81 160:27 161:56
162:61 163:136 164:104 165:127 166:175 167:134
168:81 169:33 170:212 171:2 192:5386 193:1939
194:2068 195:774 196:404 198:3658 199:3383 200:1892
202:2452 203:5005 204:3378 205:2243 206:2712 207:2832
208:2913 209:3197 210:473 211:192 212:806 213:398
214:9 215:11 216:2900 217:194 223:2
End of report
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