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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 19 Apr, 2001
Analysis Summary
----------------
BGP routing table entries examined: 104063
Origin ASes present in the Internet Routing Table: 10614
Origin ASes announcing only one prefix: 3821
Transit ASes present in the Internet Routing Table: 1428
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 15
Illegal AS announcements present in the Routing Table: 34
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: 1238228545
Equivalent to 73 /8s, 205 /16s and 222 /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: 15672
Prefixes being announced from the APNIC address blocks: 14196
APNIC Region origin ASes present in the Internet Routing Table: 1231
APNIC Region origin ASes announcing only one prefix: 435
APNIC Region transit ASes present in the Internet Routing Table: 199
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 71274418
Equivalent to 4 /8s, 63 /16s and 143 /24s
Percentage of available APNIC address space announced: 70.1
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: 72256
Prefixes being announced from the ARIN address blocks: 49770
ARIN Region origin ASes present in the Internet Routing Table: 6459
ARIN Region origin ASes announcing only one prefix: 1906
ARIN Region transit ASes present in the Internet Routing Table: 680
Average ARIN Region AS path length visible: 5.1
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 180246574
Equivalent to 10 /8s, 190 /16s and 88 /24s
Percentage of available ARIN address space announced: 82.6
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: 16101
Prefixes being announced from the RIPE address blocks: 12798
RIPE Region origin ASes present in the Internet Routing Table: 2931
RIPE Region origin ASes announcing only one prefix: 1480
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: 15
Number of RIPE addresses announced to Internet: 96635609
Equivalent to 5 /8s, 194 /16s and 138 /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 425 147 connect.com.au pty ltd
703 380 205 UUNET Technologies, Inc.
2907 365 884 SINET Japan
4755 301 110 VSNL India
4538 234 1037 China Education and Research
7539 217 101 Delegated to TWNIC for subseq
4134 188 623 Data Communications Bureau
4766 187 770 KORnet Powered BY Korea Telec
7474 178 85 Optus Communications
9269 160 22 Hong Kong CTI
1237 157 78 System Engineering Research I
7657 154 12 The Internet Group Limited
4740 153 10 Ozemail
17561 151 61 Internet service provision to
7545 145 10 TPG Internet Pty Ltd
4786 129 7 NetConnect Communications Pty
7586 124 9 Paradox Digital Pty. Ltd
7617 124 46 One.Net Pty Ltd
9797 121 10 Asia Online Australia
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /19 equiv Description
702 477 662 UUNET Technologies, Inc.
3301 392 337 TeliaNet Sweden
1270 279 448 UUNET Germany
1257 277 247 Swipnet AB
3215 208 228 RAIN
680 207 914 Deutschef Forschurgsnetz
719 191 146 LANLINK
5515 190 336 Sonera Finland
786 185 959 JANET IP Service
3320 160 710 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 117 206 PSINet UK Ltd.
8708 116 5 Romania Data System
3352 108 241 Ibernet, Internet A
1849 107 223 UUNET UK (formerly PIPEX)
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 2414 3616 UUNET Technologies, Inc.
705 1485 64 UUNET Technologies, Inc.
1 964 4495 BBN Planet
7018 956 3190 AT&T
11388 915 24 Maxim Computer Systems Corp.
7046 795 560 UUNET Technologies, Inc.
1239 644 1604 Sprint ICM-Inria
2914 607 1210 Verio, Inc.
3561 561 1264 Cable & Wireless USA
174 529 2751 PSINet Inc.
3549 505 514 Global Crossing
4293 478 52 Cable & Wireless USA
209 446 675 Qwest
690 420 42 Merit Network
2548 401 522 Digital Express Group, Inc.
3908 376 262 Supernet, Inc.
8151 362 218 UniNet S.A. de C.V.
3967 336 224 Exodus Communication
4323 336 136 Time Warner Communications, I
8013 336 54 PSINet Ltd. Canada
Global Per AS prefix count summary
----------------------------------
ASN No of nets /19 equiv Description
701 2414 3616 UUNET Technologies, Inc.
1221 2001 684 Telstra
705 1485 64 UUNET Technologies, Inc.
1 964 4495 BBN Planet
7018 956 3190 AT&T
11388 915 24 Maxim Computer Systems Corp.
7046 795 560 UUNET Technologies, Inc.
1239 644 1604 Sprint ICM-Inria
2914 607 1210 Verio, Inc.
3561 561 1264 Cable & Wireless USA
174 529 2751 PSINet Inc.
3549 505 514 Global Crossing
4293 478 52 Cable & Wireless USA
702 477 662 UUNET Technologies, Inc.
209 446 675 Qwest
2764 425 147 connect.com.au pty ltd
690 420 42 Merit Network
2548 401 522 Digital Express Group, Inc.
3301 392 337 TeliaNet Sweden
703 380 205 UUNET Technologies, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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,
64561 PRIVATE 202.139.40.192/27 7474 Optus Communications
64537 PRIVATE 202.139.47.96/29 7474 Optus Communications
64537 PRIVATE 202.139.116.0/25 7474 Optus Communications
64532 PRIVATE 202.139.116.128/27 7474 Optus Communications
64532 PRIVATE 202.139.116.192/27 7474 Optus Communications
64532 PRIVATE 202.139.116.224/29 7474 Optus Communications
64532 PRIVATE 202.139.116.240/29 7474 Optus Communications
64532 PRIVATE 202.139.116.248/29 7474 Optus Communications
64534 PRIVATE 202.139.121.0/28 7474 Optus Communications
64537 PRIVATE 202.139.168.192/27 7474 Optus Communications
64543 PRIVATE 202.139.182.0/28 7474 Optus Communications
65535 PRIVATE 203.24.169.0/24 17486 Swiftel Communicatio
65500 PRIVATE 203.166.86.0/24 10084 Western Australian I
64553 PRIVATE 203.202.2.72/29 7474 Optus Communications
64555 PRIVATE 203.202.9.88/29 7474 Optus Communications
64534 PRIVATE 203.202.9.128/25 7474 Optus Communications
64548 PRIVATE 203.202.10.0/27 7474 Optus Communications
64560 PRIVATE 203.202.14.80/28 7474 Optus Communications
64553 PRIVATE 203.202.15.16/28 7474 Optus Communications
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 /14:205 /15:325 /16:6931 /17:1125 /18:2105
/19:6585 /20:5049 /21:4423 /22:6725 /23:8624 /24:59742
/25:313 /26:484 /27:329 /28:454 /29:186 /30:186
/31:1 /32:135
Number of /24s announced per /8 block (Global)
----------------------------------------------
9:3 12:351 13:10 15:1 17:1 24:707
26:2 32:12 38:7 44:3 47:1 53:2
55:1 57:12 61:28 62:130 63:1909 64:1456
65:828 66:317 128:31 129:112 130:20 131:26
132:9 133:1 134:168 135:8 136:16 137:116
138:247 139:52 140:139 141:175 142:56 143:41
144:132 145:9 146:132 147:134 148:153 149:134
150:27 151:175 152:800 153:33 154:15 155:77
156:39 157:109 158:61 159:83 160:27 161:56
162:61 163:136 164:135 165:126 166:173 167:134
168:83 169:34 170:212 171:2 192:5374 193:1940
194:2053 195:765 196:406 198:3671 199:3384 200:1902
201:1 202:2471 203:4992 204:3373 205:2238 206:2727
207:2834 208:2909 209:3269 210:475 211:193 212:812
213:417 214:9 215:11 216:3041 217:183 223:2
End of report
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