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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 29 Apr, 2001
Analysis Summary
----------------
BGP routing table entries examined: 114846
Origin ASes present in the Internet Routing Table: 10663
Origin ASes announcing only one prefix: 3869
Transit ASes present in the Internet Routing Table: 1458
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: 1231443411
Equivalent to 73 /8s, 102 /16s and 85 /24s
Percentage of available address space announced: 33.2
Percentage of allocated address space announced: 64.0
Percentage of available address space allocated: 51.9
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15589
Prefixes being announced from the APNIC address blocks: 14113
APNIC Region origin ASes present in the Internet Routing Table: 1210
APNIC Region origin ASes announcing only one prefix: 440
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: 71472282
Equivalent to 4 /8s, 66 /16s and 148 /24s
Percentage of available APNIC address space announced: 70.3
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: 82935
Prefixes being announced from the ARIN address blocks: 50990
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: 698
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 181691442
Equivalent to 10 /8s, 212 /16s and 100 /24s
Percentage of available ARIN address space announced: 83.3
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: 16304
Prefixes being announced from the RIPE address blocks: 12989
RIPE Region origin ASes present in the Internet Routing Table: 2946
RIPE Region origin ASes announcing only one prefix: 1495
RIPE Region transit ASes present in the Internet Routing Table: 554
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 96972169
Equivalent to 5 /8s, 199 /16s and 173 /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 489 142 connect.com.au pty ltd
703 392 205 UUNET Technologies, Inc.
2907 363 875 SINET Japan
4755 274 97 VSNL India
4538 243 1056 China Education and Research
7539 220 101 Delegated to TWNIC for subseq
4134 195 633 Data Communications Bureau
4766 185 758 KORnet Powered BY Korea Telec
7474 185 85 Optus Communications
7657 173 13 The Internet Group Limited
9269 161 22 Hong Kong CTI
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
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 277 263 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 120 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
174 6405 3388 PSINet Inc.
2149 4374 276 Performance Systems, Inc.
701 2340 3736 UUNET Technologies, Inc.
705 1788 74 UUNET Technologies, Inc.
7018 968 3240 AT&T
1 959 4472 BBN Planet
7046 799 556 UUNET Technologies, Inc.
1239 630 1581 Sprint ICM-Inria
2914 596 1202 Verio, Inc.
3561 563 1242 Cable & Wireless USA
18994 525 6 Crossing
3549 501 515 Global Crossing
4293 476 51 Cable & Wireless USA
8013 474 44 PSINet Ltd. Canada
209 445 707 Qwest
690 445 44 Merit Network
2548 405 506 Digital Express Group, Inc.
3908 380 262 Supernet, Inc.
8151 365 218 UniNet S.A. de C.V.
3602 346 72 Sprint Canada
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
174 6405 3388 PSINet Inc.
2149 4374 276 Performance Systems, Inc.
701 2340 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 799 556 UUNET Technologies, Inc.
1239 630 1581 Sprint ICM-Inria
2914 596 1202 Verio, Inc.
3561 563 1242 Cable & Wireless USA
702 530 649 UUNET Technologies, Inc.
18994 525 6 Crossing
3549 501 515 Global Crossing
2764 489 142 connect.com.au pty ltd
4293 476 51 Cable & Wireless USA
8013 474 44 PSINet Ltd. Canada
209 445 707 Qwest
690 445 44 Merit Network
2548 405 506 Digital Express Group, Inc.
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
/13:72 /14:206 /15:331 /16:6966 /17:1142 /18:2112
/19:6597 /20:5129 /21:4460 /22:6803 /23:8683 /24:70516
/25:265 /26:433 /27:276 /28:292 /29:224 /30:193
/31:1 /32:77
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:352 13:10 15:1 17:2 24:687
26:1 32:13 38:9066 44:3 47:1 53:2
55:1 57:11 61:29 62:131 63:1924 64:1489
65:1109 66:315 128:35 129:116 130:21 131:26
132:9 133:1 134:166 135:9 136:16 137:118
138:249 139:52 140:143 141:163 142:60 143:41
144:132 145:9 146:133 147:135 148:142 149:125
150:28 151:301 152:768 153:33 154:126 155:83
156:40 157:107 158:171 159:85 160:28 161:58
162:61 163:133 164:90 165:126 166:177 167:135
168:82 169:34 170:254 171:2 192:5391 193:1958
194:2074 195:803 196:410 198:3660 199:3416 200:1980
201:1 202:2404 203:5035 204:3690 205:2225 206:3348
207:2902 208:2937 209:3199 210:505 211:149 212:884
213:383 214:9 215:11 216:2955 217:214
End of report
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