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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 30 Apr, 2001
Analysis Summary
----------------
BGP routing table entries examined: 104507
Origin ASes present in the Internet Routing Table: 10662
Origin ASes announcing only one prefix: 3874
Transit ASes present in the Internet Routing Table: 1452
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 21
Illegal AS announcements present in the Routing Table: 18
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: 1224676499
Equivalent to 72 /8s, 255 /16s and 20 /24s
Percentage of available address space announced: 33.0
Percentage of allocated address space announced: 63.7
Percentage of available address space allocated: 51.9
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15541
Prefixes being announced from the APNIC address blocks: 14061
APNIC Region origin ASes present in the Internet Routing Table: 1210
APNIC Region origin ASes announcing only one prefix: 442
APNIC Region transit ASes present in the Internet Routing Table: 206
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 71446426
Equivalent to 4 /8s, 66 /16s and 47 /24s
Percentage of available APNIC address space announced: 70.2
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: 72661
Prefixes being announced from the ARIN address blocks: 49943
ARIN Region origin ASes present in the Internet Routing Table: 6507
ARIN Region origin ASes announcing only one prefix: 1934
ARIN Region transit ASes present in the Internet Routing Table: 697
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 181328626
Equivalent to 10 /8s, 206 /16s and 218 /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: 16287
Prefixes being announced from the RIPE address blocks: 12973
RIPE Region origin ASes present in the Internet Routing Table: 2945
RIPE Region origin ASes announcing only one prefix: 1498
RIPE Region transit ASes present in the Internet Routing Table: 549
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 96953737
Equivalent to 5 /8s, 199 /16s and 101 /24s
Percentage of available RIPE address space announced: 64.2
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 2001 683 Telstra
2764 540 143 connect.com.au pty ltd
703 392 205 UUNET Technologies, Inc.
2907 362 875 SINET Japan
4755 322 111 VSNL India
4538 243 1056 China Education and Research
7539 220 101 Delegated to TWNIC for subseq
4134 196 634 Data Communications Bureau
4766 185 758 KORnet Powered BY Korea Telec
7474 185 85 Optus Communications
7657 173 13 The Internet Group Limited
1237 156 70 System Engineering Research I
17561 151 61 Internet service provision to
4740 149 10 Ozemail
7545 145 10 TPG Internet Pty Ltd
4786 129 7 NetConnect Communications Pty
7617 124 46 One.Net Pty Ltd
9394 122 19 CHINA RAILWAY TELECOMMUNICATI
7586 121 9 Paradox Digital Pty. Ltd
9443 121 22 INTERNETPRIMUS-AS-A
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 530 649 UUNET Technologies, Inc.
3301 389 337 TeliaNet Sweden
1257 278 263 Swipnet AB
1270 267 440 UUNET Germany
3215 212 228 RAIN
680 211 938 Deutschef Forschurgsnetz
5515 190 336 Sonera Finland
719 189 146 LANLINK
786 183 951 JANET IP Service
3320 162 710 Deutsche Telekom AG
5400 128 33 Concert Internet Plus Europea
517 127 134 Xlink
3303 124 298 Swisscom
2856 123 388 BTnet UK Regional network
8708 121 6 Romania Data System
1267 101 978 IUnet S.p.A
1849 101 223 UUNET UK (formerly PIPEX)
1290 100 204 PSINet UK Ltd.
1901 97 77 EUnet Austria
3269 85 277 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
701 2341 3736 UUNET Technologies, Inc.
705 1788 74 UUNET Technologies, Inc.
7018 968 3240 AT&T
1 959 4472 BBN Planet
7046 800 556 UUNET Technologies, Inc.
1239 628 1580 Sprint ICM-Inria
2914 599 1202 Verio, Inc.
3561 560 1249 Cable & Wireless USA
18994 525 6 Crossing
3549 501 515 Global Crossing
4293 476 51 Cable & Wireless USA
690 446 52 Merit Network
209 444 707 Qwest
174 425 2704 PSINet Inc.
2548 405 506 Digital Express Group, Inc.
3908 380 262 Supernet, Inc.
8151 365 218 UniNet S.A. de C.V.
3602 342 71 Sprint Canada
3967 337 226 Exodus Communication
4323 336 136 Time Warner Communications, I
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2341 3736 UUNET Technologies, Inc.
1221 2001 683 Telstra
705 1788 74 UUNET Technologies, Inc.
7018 968 3240 AT&T
1 959 4472 BBN Planet
7046 800 556 UUNET Technologies, Inc.
1239 628 1580 Sprint ICM-Inria
2914 599 1202 Verio, Inc.
3561 560 1249 Cable & Wireless USA
2764 540 143 connect.com.au pty ltd
702 530 649 UUNET Technologies, Inc.
18994 525 6 Crossing
3549 501 515 Global Crossing
4293 476 51 Cable & Wireless USA
690 446 52 Merit Network
209 444 707 Qwest
174 425 2704 PSINet Inc.
2548 405 506 Digital Express Group, Inc.
703 392 205 UUNET Technologies, Inc.
3301 389 337 TeliaNet Sweden
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
60002 RESERVED 64.76.148.0/24 19583 CHILE S.A.
64842 PRIVATE 164.159.151.0/24 19143 Fish and Wildlife Se
64842 PRIVATE 164.159.152.0/22 19143 Fish and Wildlife Se
64842 PRIVATE 164.159.159.0/24 19143 Fish and Wildlife Se
64842 PRIVATE 164.159.160.0/24 19143 Fish and Wildlife Se
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
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:4 /10:4 /11:10 /12:29
/13:68 /14:204 /15:331 /16:6946 /17:1140 /18:2108
/19:6598 /20:5126 /21:4449 /22:6753 /23:8669 /24:60287
/25:265 /26:432 /27:276 /28:292 /29:224 /30:193
/31:1 /32:77
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:351 13:10 15:1 17:2 24:687
26:1 32:13 38:7 44:3 47:1 53:2
55:1 57:11 61:29 62:131 63:1927 64:1490
65:1109 66:317 128:35 129:116 130:21 131:26
132:8 133:1 134:166 135:9 136:16 137:118
138:248 139:52 140:143 141:164 142:60 143:41
144:132 145:9 146:133 147:135 148:142 149:125
150:28 151:301 152:768 153:33 154:17 155:83
156:40 157:107 158:170 159:85 160:28 161:58
162:61 163:133 164:90 165:126 166:177 167:135
168:83 169:34 170:248 171:2 192:5394 193:1954
194:2076 195:804 196:410 198:3672 199:3386 200:1970
201:1 202:2420 203:4967 204:3349 205:2225 206:2719
207:2901 208:2940 209:3165 210:538 211:149 212:879
213:382 214:9 215:11 216:2956 217:207
End of report
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