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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 25 Apr, 2001
Analysis Summary
----------------
BGP routing table entries examined: 103433
Origin ASes present in the Internet Routing Table: 10624
Origin ASes announcing only one prefix: 3858
Transit ASes present in the Internet Routing Table: 1425
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 20
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 3
Number of addresses announced to Internet: 1238785447
Equivalent to 73 /8s, 214 /16s and 93 /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: 15540
Prefixes being announced from the APNIC address blocks: 14073
APNIC Region origin ASes present in the Internet Routing Table: 1218
APNIC Region origin ASes announcing only one prefix: 436
APNIC Region transit ASes present in the Internet Routing Table: 198
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 71056730
Equivalent to 4 /8s, 60 /16s and 61 /24s
Percentage of available APNIC address space announced: 69.9
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: 71891
Prefixes being announced from the ARIN address blocks: 49139
ARIN Region origin ASes present in the Internet Routing Table: 6471
ARIN Region origin ASes announcing only one prefix: 1923
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: 13
Number of ARIN addresses announced to Internet: 180732486
Equivalent to 10 /8s, 197 /16s and 194 /24s
Percentage of available ARIN address space announced: 82.9
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: 15982
Prefixes being announced from the RIPE address blocks: 12748
RIPE Region origin ASes present in the Internet Routing Table: 2933
RIPE Region origin ASes announcing only one prefix: 1499
RIPE Region transit ASes present in the Internet Routing Table: 541
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 96770873
Equivalent to 5 /8s, 196 /16s and 155 /24s
Percentage of available RIPE address space announced: 82.4
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 1996 691 Telstra
2764 426 139 connect.com.au pty ltd
703 388 205 UUNET Technologies, Inc.
2907 363 875 SINET Japan
4755 304 105 VSNL India
4538 236 1038 China Education and Research
7539 218 100 Delegated to TWNIC for subseq
4134 192 619 Data Communications Bureau
4766 189 770 KORnet Powered BY Korea Telec
7474 181 85 Optus Communications
7657 173 13 The Internet Group Limited
9269 160 22 Hong Kong CTI
1237 155 70 System Engineering Research I
4740 155 10 Ozemail
17561 151 61 Internet service provision to
7545 147 10 TPG Internet Pty Ltd
4786 127 7 NetConnect Communications Pty
7617 124 46 One.Net Pty Ltd
9443 122 22 INTERNETPRIMUS-AS-A
7586 121 9 Paradox Digital Pty. Ltd
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 483 646 UUNET Technologies, Inc.
3301 386 337 TeliaNet Sweden
1257 277 247 Swipnet AB
1270 277 448 UUNET Germany
680 209 922 Deutschef Forschurgsnetz
3215 190 227 RAIN
5515 190 336 Sonera Finland
719 189 146 LANLINK
786 185 959 JANET IP Service
3320 160 710 Deutsche Telekom AG
5400 129 41 Concert Internet Plus Europea
517 127 134 Xlink
3303 124 298 Swisscom
2856 122 388 BTnet UK Regional network
1290 116 206 PSINet UK Ltd.
8708 111 5 Romania Data System
1849 107 223 UUNET UK (formerly PIPEX)
1267 101 978 IUnet S.p.A
1901 96 69 EUnet Austria
3269 85 277 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
701 2351 3645 UUNET Technologies, Inc.
705 1639 69 UUNET Technologies, Inc.
7018 963 3158 AT&T
1 960 4472 BBN Planet
7046 796 552 UUNET Technologies, Inc.
2914 608 1203 Verio, Inc.
1239 572 1566 Sprint ICM-Inria
3561 560 1240 Cable & Wireless USA
174 542 2766 PSINet Inc.
3549 500 515 Global Crossing
4293 478 51 Cable & Wireless USA
209 452 715 Qwest
690 440 46 Merit Network
2548 400 514 Digital Express Group, Inc.
3908 369 261 Supernet, Inc.
8151 362 226 UniNet S.A. de C.V.
3602 347 72 Sprint Canada
4323 337 136 Time Warner Communications, I
3967 336 226 Exodus Communication
8013 336 54 PSINet Ltd. Canada
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2351 3645 UUNET Technologies, Inc.
1221 1996 691 Telstra
705 1639 69 UUNET Technologies, Inc.
7018 963 3158 AT&T
1 960 4472 BBN Planet
7046 796 552 UUNET Technologies, Inc.
2914 608 1203 Verio, Inc.
1239 572 1566 Sprint ICM-Inria
3561 560 1240 Cable & Wireless USA
174 542 2766 PSINet Inc.
3549 500 515 Global Crossing
702 483 646 UUNET Technologies, Inc.
4293 478 51 Cable & Wireless USA
209 452 715 Qwest
690 440 46 Merit Network
2764 426 139 connect.com.au pty ltd
2548 400 514 Digital Express Group, Inc.
703 388 205 UUNET Technologies, Inc.
3301 386 337 TeliaNet Sweden
3908 369 261 Supernet, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
60002 RESERVED 64.76.148.0/24 19583 CHILE S.A.
2027 UNALLOCATED 150.185.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
2027 UNALLOCATED 150.186.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.187.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.188.0.0/16 10530 Interpacket Group, I
2027 UNALLOCATED 150.189.0.0/16 10530 Interpacket Group, I
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,
60002 RESERVED 200.9.98.0/24 6429 RdC Internet
60002 RESERVED 200.9.99.0/24 6429 RdC Internet
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
201.115.100.0/24 7018 AT&T
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 /14:204 /15:329 /16:6935 /17:1131 /18:2099
/19:6571 /20:5070 /21:4416 /22:6703 /23:8575 /24:59926
/25:261 /26:388 /27:195 /28:187 /29:126 /30:123
/31:1 /32:57
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:353 13:10 15:1 17:2 24:698
26:1 32:23 38:7 44:3 47:1 53:2
55:1 57:11 61:28 62:137 63:1939 64:1464
65:999 66:286 128:31 129:115 130:21 131:26
132:9 133:1 134:166 135:8 136:16 137:117
138:249 139:62 140:135 141:163 142:61 143:41
144:134 145:9 146:132 147:134 148:141 149:135
150:26 151:300 152:801 153:33 154:17 155:80
156:40 157:109 158:171 159:84 160:28 161:47
162:61 163:137 164:86 165:126 166:176 167:133
168:83 169:34 170:216 171:2 192:5391 193:1900
194:2030 195:778 196:405 198:3660 199:3370 200:1934
201:1 202:2441 203:4979 204:3377 205:2243 206:2737
207:2905 208:2889 209:3175 210:498 211:162 212:834
213:379 214:9 215:11 216:2946 217:205 223:2
End of report
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