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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 15 May, 2001
Analysis Summary
----------------
BGP routing table entries examined: 105847
Origin ASes present in the Internet Routing Table: 10813
Origin ASes announcing only one prefix: 3942
Transit ASes present in the Internet Routing Table: 1432
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: 16
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: 1258299364
Equivalent to 75 /8s, 0 /16s and 31 /24s
Percentage of available address space announced: 33.9
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 51.9
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15698
Prefixes being announced from the APNIC address blocks: 14268
APNIC Region origin ASes present in the Internet Routing Table: 1246
APNIC Region origin ASes announcing only one prefix: 441
APNIC Region transit ASes present in the Internet Routing Table: 202
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 83632595
Equivalent to 4 /8s, 252 /16s and 33 /24s
Percentage of available APNIC address space announced: 82.2
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: 73420
Prefixes being announced from the ARIN address blocks: 50512
ARIN Region origin ASes present in the Internet Routing Table: 6586
ARIN Region origin ASes announcing only one prefix: 1974
ARIN Region transit ASes present in the Internet Routing Table: 686
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 182854241
Equivalent to 10 /8s, 230 /16s and 34 /24s
Percentage of available ARIN address space announced: 83.8
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: 16713
Prefixes being announced from the RIPE address blocks: 13058
RIPE Region origin ASes present in the Internet Routing Table: 2978
RIPE Region origin ASes announcing only one prefix: 1523
RIPE Region transit ASes present in the Internet Routing Table: 543
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 114994122
Equivalent to 6 /8s, 218 /16s and 171 /24s
Percentage of available RIPE address space announced: 76.2
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 1750 667 Telstra
2764 882 172 connect.com.au pty ltd
703 384 205 UUNET Technologies, Inc.
2907 363 884 SINET Japan
4755 322 110 VSNL India
7539 210 91 Delegated to TWNIC for subseq
7657 205 14 The Internet Group Limited
4134 198 637 Data Communications Bureau
7474 189 86 Optus Communications
7545 154 10 TPG Internet Pty Ltd
17561 151 68 Internet service provision to
1237 149 50 System Engineering Research I
4740 149 10 Ozemail
4766 146 597 KORnet Powered BY Korea Telec
9443 125 23 INTERNETPRIMUS-AS-A
4786 124 7 NetConnect Communications Pty
7586 124 9 Paradox Digital Pty. Ltd
9394 124 18 CHINA RAILWAY TELECOMMUNICATI
4736 120 17 Magna Data
7617 120 46 One.Net Pty Ltd
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 540 803 UUNET Technologies, Inc.
15870 447 3 Global Center Frankfurt
3301 392 401 TeliaNet Sweden
1257 278 263 Swipnet AB
1270 263 440 UUNET Germany
5515 213 337 Sonera Finland
680 212 938 Deutschef Forschurgsnetz
3215 212 223 RAIN
719 186 146 LANLINK
786 186 952 JANET IP Service
3320 165 710 Deutsche Telekom AG
517 130 136 Xlink
5400 129 33 Concert Internet Plus Europea
3303 122 296 Swisscom
2856 121 396 BTnet UK Regional network
8708 119 7 Romania Data System
1267 100 978 IUnet S.p.A
1290 95 203 PSINet UK Ltd.
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 2372 3787 UUNET Technologies, Inc.
705 1151 54 UUNET Technologies, Inc.
7018 1022 3290 AT&T
1 955 4464 BBN Planet
7046 794 549 UUNET Technologies, Inc.
3491 682 180 CAIS Internet
1239 639 1605 Sprint ICM-Inria
2914 593 1184 Verio, Inc.
3561 544 1216 Cable & Wireless USA
4293 497 51 Cable & Wireless USA
18994 492 5 Global Crossing
690 465 54 Merit Network
209 458 735 Qwest
2548 409 506 Digital Express Group, Inc.
174 391 2670 PSINet Inc.
3908 384 265 Supernet, Inc.
3602 358 73 Sprint Canada
3549 349 526 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 2372 3787 UUNET Technologies, Inc.
1221 1750 667 Telstra
705 1151 54 UUNET Technologies, Inc.
7018 1022 3290 AT&T
1 955 4464 BBN Planet
2764 882 172 connect.com.au pty ltd
7046 794 549 UUNET Technologies, Inc.
3491 682 180 CAIS Internet
1239 639 1605 Sprint ICM-Inria
2914 593 1184 Verio, Inc.
3561 544 1216 Cable & Wireless USA
702 540 803 UUNET Technologies, Inc.
4293 497 51 Cable & Wireless USA
18994 492 5 Global Crossing
690 465 54 Merit Network
209 458 735 Qwest
15870 447 3 Global Center Frankfurt
2548 409 506 Digital Express Group, Inc.
3301 392 401 TeliaNet Sweden
174 391 2670 PSINet Inc.
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,
60002 RESERVED 200.9.98.0/24 6429 RdC Internet
60002 RESERVED 200.9.99.0/24 6429 RdC Internet
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 /8:22 /9:5 /10:6 /11:9 /12:30
/13:73 /14:203 /15:342 /16:6886 /17:1154 /18:2127
/19:6642 /20:5093 /21:4473 /22:6761 /23:8709 /24:60924
/25:267 /26:456 /27:453 /28:461 /29:384 /30:300
/31:1 /32:66
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:363 13:10 15:1 17:2 24:689
26:1 32:12 38:578 44:3 47:1 53:2
55:1 57:11 61:30 62:121 63:1945 64:1623
65:545 66:319 128:36 129:124 130:23 131:36
132:9 133:1 134:168 135:11 136:16 137:121
138:245 139:47 140:140 141:165 142:61 143:41
144:139 145:9 146:138 147:135 148:95 149:123
150:27 151:300 152:684 153:32 154:17 155:80
156:43 157:108 158:178 159:76 160:27 161:56
162:62 163:134 164:96 165:122 166:178 167:137
168:77 169:34 170:265 171:2 192:5440 193:1955
194:2084 195:770 196:400 198:3655 199:3382 200:2036
201:1 202:2469 203:4976 204:3360 205:2250 206:2832
207:2900 208:2957 209:3134 210:753 211:167 212:867
213:407 214:9 215:12 216:3001 217:229
End of report
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