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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 28 Aug, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106725
Origin ASes present in the Internet Routing Table: 11542
Origin ASes announcing only one prefix: 4244
Transit ASes present in the Internet Routing Table: 1498
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 47
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 16
Number of addresses announced to Internet: 1229924136
Equivalent to 73 /8s, 79 /16s and 39 /24s
Percentage of available address space announced: 33.2
Percentage of allocated address space announced: 63.9
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 72715
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15984
Prefixes being announced from the APNIC address blocks: 14377
APNIC Region origin ASes present in the Internet Routing Table: 1356
APNIC Region origin ASes announcing only one prefix: 456
APNIC Region transit ASes present in the Internet Routing Table: 228
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 77318776
Equivalent to 4 /8s, 155 /16s and 202 /24s
Percentage of available APNIC address space announced: 76.0
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: 73495
Prefixes being announced from the ARIN address blocks: 53063
ARIN Region origin ASes present in the Internet Routing Table: 6951
ARIN Region origin ASes announcing only one prefix: 2076
ARIN Region transit ASes present in the Internet Routing Table: 696
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 223302186
Equivalent to 13 /8s, 79 /16s and 82 /24s
Percentage of available ARIN address space announced: 83.2
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, 21504 - 22527
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 17241
Prefixes being announced from the RIPE address blocks: 13626
RIPE Region origin ASes present in the Internet Routing Table: 3243
RIPE Region origin ASes announcing only one prefix: 1712
RIPE Region transit ASes present in the Internet Routing Table: 575
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106188060
Equivalent to 6 /8s, 84 /16s and 77 /24s
Percentage of available RIPE address space announced: 70.3
RIPE AS Blocks 1877 - 1901, 2043, 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 /20 equiv Description
1221 1586 1315 Telstra Pty Ltd
2764 432 378 connect.com.au pty ltd
703 427 368 UUNET Technologies, Inc.
2907 366 1800 SINET Japan
4755 295 163 Videsh Sanchar Nigam Ltd. Aut
4134 240 1761 Data Communications Bureau
7474 235 289 Optus Communications Pty Ltd
7539 207 175 TANet2, sponsored by NSC, TAI
4740 196 25 OzEmail ISP
4766 179 1320 Korea Internet Exchange for "
7545 146 25 TPG Internet Pty Ltd
9443 144 39 Primus Telecommunications
4786 130 17 NetConnect Communications Pty
4763 120 69 Telstra New Zealand
9583 116 61 Satyam Infoway Ltd.,
17561 116 167 Internet service provision to
4713 115 885 NTT Communications Corporatio
4812 109 278 China Telecom (Group)
7586 109 17 Paradox Digital Pty Ltd
7657 107 22 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 702 1730 UUNET Technologies, Inc.
3301 431 917 TeliaNet Sweden
1257 277 521 SWIPnet Swedish IP Network
680 232 2261 DFN-IP service G-WiN
1270 221 846 UUNET Germany
3215 220 511 France Telecom / &Equant
5515 194 688 Sonera Finland Autonomous Sys
15870 187 11 Global Center Frankfurt
786 184 1890 The JANET IP Service
3320 184 1940 Deutsche Telekom AG
719 180 291 LANLINK autonomous system
8708 152 19 Romania Data Systems S.A.
15878 142 12 Global Center Paris
5400 138 66 Concert European Core Network
3303 132 576 Swisscom Ltd
2856 125 774 BTnet UK Regional network
5549 124 64 Nextra Deutschland GmbH + Co.
517 116 269 KPNQwest Germany GmbH
1267 103 1989 Infostrada S.p.A.
3269 102 783 TELECOM ITALIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2253 8059 UUNET Technologies, Inc.
7018 1012 7091 AT&T
3908 912 762 Supernet, Inc.
1 882 8662 BBN Planet
2551 849 659 ICG NetAhead, Inc
7046 780 5120 UUNET Technologies, Inc.
1239 719 3242 Sprint
3967 601 487 Exodus Communication
209 508 2135 Qwest
690 506 94 Merit Network
2914 505 2312 Verio, Inc.
4293 479 114 Cable & Wireless USA
3561 422 2397 Cable & Wireless USA
2548 384 997 Business Internet, Inc.
2149 377 295 Performance Systems, Inc.
3549 368 820 Global Crossing
18994 355 10 Global Crossing
577 349 633 Bell Advanced Communications
6347 336 360 SAVVIS Communications Corpora
4151 329 1233 USDA
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2253 8059 UUNET Technologies, Inc.
1221 1586 1315 Telstra Pty Ltd
7018 1012 7091 AT&T
3908 912 762 Supernet, Inc.
1 882 8662 BBN Planet
2551 849 659 ICG NetAhead, Inc
7046 780 5120 UUNET Technologies, Inc.
1239 719 3242 Sprint
702 702 1730 UUNET Technologies, Inc.
3967 601 487 Exodus Communication
209 508 2135 Qwest
690 506 94 Merit Network
2914 505 2312 Verio, Inc.
4293 479 114 Cable & Wireless USA
2764 432 378 connect.com.au pty ltd
3301 431 917 TeliaNet Sweden
703 427 368 UUNET Technologies, Inc.
3561 422 2397 Cable & Wireless USA
2548 384 997 Business Internet, Inc.
2149 377 295 Performance Systems, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65534 PRIVATE 62.23.176.0/24 6675 Colt Telecommunicati
65534 PRIVATE 62.23.177.0/24 6675 Colt Telecommunicati
6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.108.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc.
6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw
22065 UNALLOCATED 64.172.224.0/24 5677 Pacific Bell Interne
22065 UNALLOCATED 64.172.225.0/24 5677 Pacific Bell Interne
578 UNALLOCATED 64.230.242.16/28 577 Bell Advanced Commun
22093 UNALLOCATED 66.73.24.0/24 5104 Ameritech Advanced D
22093 UNALLOCATED 66.73.25.0/24 5104 Ameritech Advanced D
22093 UNALLOCATED 139.137.0.0/16 5104 Ameritech Advanced D
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
22093 UNALLOCATED 192.35.79.0/24 5104 Ameritech Advanced D
6971 UNALLOCATED 192.103.229.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.230.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.232.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.236.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.237.0/24 2516 Kokusai Denshin Denw
1877 UNALLOCATED 192.108.199.0/24 1755 Ebone Transit Core
65460 PRIVATE 192.231.11.0/24 7018 AT&T
6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw
64550 PRIVATE 203.161.39.0/24 17802 Internet AccessFor Q
6971 UNALLOCATED 206.58.248.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.252.0/23 2914 Verio, Inc.
6971 UNALLOCATED 206.58.254.0/23 2914 Verio, Inc.
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS
6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.202.0/23 2914 Verio, Inc.
6971 UNALLOCATED 216.174.204.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.232.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.174.240.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
82.105.0.0/16 3269 TELECOM ITALIA
82.105.128.0/17 3269 TELECOM ITALIA
128.65.0.0/16 3463 ACES Research Inc
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 400 Headquarters Standard Systems
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.34.0.0/15 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
172.32.1.0/25 1221 Telstra Pty Ltd
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 /8:18 /9:5 /10:6 /11:12 /12:32
/13:84 /14:224 /15:379 /16:6949 /17:1223 /18:2313
/19:6886 /20:5656 /21:4643 /22:6888 /23:8749 /24:60879
/25:343 /26:361 /27:289 /28:296 /29:196 /30:214
/31:0 /32:80
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1436 1586 Telstra Pty Ltd
701 1418 2253 UUNET Technologies, Inc.
3908 754 912 Supernet, Inc.
2551 746 849 ICG NetAhead, Inc
7046 603 780 UUNET Technologies, Inc.
7018 521 1012 AT&T
690 502 506 Merit Network
4293 462 479 Cable & Wireless USA
702 452 702 UUNET Technologies, Inc.
3967 421 601 Exodus Communication
1 416 882 BBN Planet
1239 400 719 Sprint
2764 385 432 connect.com.au pty ltd
209 361 508 Qwest
703 357 427 UUNET Technologies, Inc.
18994 353 355 Global Crossing
11371 309 322 Rhythms NetConnections
4151 287 329 USDA
5106 286 312 Ameritech Advanced Data Servi
2548 276 384 Business Internet, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 9:1 12:402 13:10 15:1 17:6
20:1 24:703 26:1 32:32 38:8 43:7
44:2 53:2 55:1 57:15 61:69 62:137
63:1906 64:1345 65:626 66:429 80:37 128:44
129:113 130:17 131:44 132:12 133:1 134:138
135:9 136:22 137:142 138:199 139:46 140:139
141:161 142:63 143:40 144:144 145:11 146:142
147:130 148:172 149:89 150:37 151:210 152:406
153:31 154:23 155:77 156:84 157:121 158:72
159:65 160:46 161:58 162:67 163:158 164:107
165:94 166:184 167:144 168:122 169:36 170:283
171:2 192:5492 193:1929 194:2044 195:828 196:413
198:3698 199:3392 200:2441 201:1 202:2684 203:4607
204:3473 205:2359 206:3019 207:2768 208:3081 209:3228
210:528 211:123 212:830 213:468 214:8 215:13
216:3017 217:385 218:2
End of report
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