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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 26 Aug, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106934
Origin ASes present in the Internet Routing Table: 11508
Origin ASes announcing only one prefix: 4226
Transit ASes present in the Internet Routing Table: 1487
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: 48
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 17
Number of addresses announced to Internet: 1748868451
Equivalent to 104 /8s, 61 /16s and 157 /24s
Percentage of available address space announced: 47.2
Percentage of allocated address space announced: 90.9
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 72959
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15984
Prefixes being announced from the APNIC address blocks: 14350
APNIC Region origin ASes present in the Internet Routing Table: 1352
APNIC Region origin ASes announcing only one prefix: 458
APNIC Region transit ASes present in the Internet Routing Table: 223
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 77153769
Equivalent to 4 /8s, 153 /16s and 69 /24s
Percentage of available APNIC address space announced: 75.9
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: 73596
Prefixes being announced from the ARIN address blocks: 53359
ARIN Region origin ASes present in the Internet Routing Table: 6929
ARIN Region origin ASes announcing only one prefix: 2064
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: 206512248
Equivalent to 12 /8s, 79 /16s and 32 /24s
Percentage of available ARIN address space announced: 76.9
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: 17350
Prefixes being announced from the RIPE address blocks: 13554
RIPE Region origin ASes present in the Internet Routing Table: 3234
RIPE Region origin ASes announcing only one prefix: 1704
RIPE Region transit ASes present in the Internet Routing Table: 568
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106118428
Equivalent to 6 /8s, 83 /16s and 61 /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 1595 1316 Telstra Pty Ltd
2764 434 378 connect.com.au pty ltd
703 422 368 UUNET Technologies, Inc.
2907 364 1816 SINET Japan
4755 292 163 Videsh Sanchar Nigam Ltd. Aut
4134 242 1753 Data Communications Bureau
7474 235 289 Optus Communications Pty Ltd
7539 205 175 TANet2, sponsored by NSC, TAI
4740 202 25 OzEmail ISP
4766 180 1336 Korea Internet Exchange for "
7545 151 25 TPG Internet Pty Ltd
9443 145 39 Primus Telecommunications
4786 129 17 NetConnect Communications Pty
4763 120 69 Telstra New Zealand
17561 116 167 Internet service provision to
4713 115 885 NTT Communications Corporatio
9583 115 61 Satyam Infoway Ltd.,
7586 110 17 Paradox Digital Pty Ltd
4812 109 278 China Telecom (Group)
7657 107 22 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 707 1730 UUNET Technologies, Inc.
3301 430 917 TeliaNet Sweden
15870 375 12 Global Center Frankfurt
1257 278 521 SWIPnet Swedish IP Network
680 232 2261 DFN-IP service G-WiN
1270 219 845 UUNET Germany
3215 217 511 France Telecom / &Equant
5515 194 688 Sonera Finland Autonomous Sys
786 184 1874 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 136 66 Concert European Core Network
3303 132 576 Swisscom Ltd
2856 125 774 BTnet UK Regional network
5549 124 64 Nextra Deutschland GmbH + Co.
517 118 269 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 2292 8128 UUNET Technologies, Inc.
7018 1020 7140 AT&T
3908 905 662 Supernet, Inc.
1 880 8662 BBN Planet
2551 853 660 ICG NetAhead, Inc
7046 761 1007 UUNET Technologies, Inc.
1239 719 3257 Sprint
3967 601 487 Exodus Communication
209 518 2136 Qwest
2914 512 2329 Verio, Inc.
690 505 78 Merit Network
4293 479 114 Cable & Wireless USA
3561 419 2397 Cable & Wireless USA
2548 386 998 Business Internet, Inc.
2149 383 280 Performance Systems, Inc.
3549 367 820 Global Crossing
18994 356 10 Global Crossing
577 348 633 Bell Advanced Communications
4323 336 332 Time Warner Communications, I
6347 336 360 SAVVIS Communications Corpora
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2292 8128 UUNET Technologies, Inc.
1221 1595 1316 Telstra Pty Ltd
7018 1020 7140 AT&T
3908 905 662 Supernet, Inc.
1 880 8662 BBN Planet
2551 853 660 ICG NetAhead, Inc
7046 761 1007 UUNET Technologies, Inc.
1239 719 3257 Sprint
702 707 1730 UUNET Technologies, Inc.
3967 601 487 Exodus Communication
209 518 2136 Qwest
2914 512 2329 Verio, Inc.
690 505 78 Merit Network
4293 479 114 Cable & Wireless USA
2764 434 378 connect.com.au pty ltd
3301 430 917 TeliaNet Sweden
703 422 368 UUNET Technologies, Inc.
3561 419 2397 Cable & Wireless USA
2548 386 998 Business Internet, Inc.
2149 383 280 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
22065 UNALLOCATED 64.172.226.0/24 5677 Pacific Bell Interne
22065 UNALLOCATED 64.172.227.0/24 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 139.137.0.0/16 701 UUNET Technologies,
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
22093 UNALLOCATED 192.35.79.0/24 701 UUNET Technologies,
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
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
96.0.0.0/3 237 Merit Network
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 /3:1 /4:0 /5:0 /6:0
/7:0 /8:17 /9:5 /10:6 /11:12 /12:32
/13:84 /14:224 /15:379 /16:6934 /17:1223 /18:2311
/19:6871 /20:5648 /21:4642 /22:6889 /23:8747 /24:60960
/25:344 /26:372 /27:335 /28:327 /29:261 /30:231
/31:0 /32:79
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1446 2292 UUNET Technologies, Inc.
1221 1445 1595 Telstra Pty Ltd
3908 751 905 Supernet, Inc.
2551 748 853 ICG NetAhead, Inc
7046 587 761 UUNET Technologies, Inc.
7018 525 1020 AT&T
690 502 505 Merit Network
4293 462 479 Cable & Wireless USA
702 457 707 UUNET Technologies, Inc.
3967 421 601 Exodus Communication
1 414 880 BBN Planet
1239 399 719 Sprint
2764 387 434 connect.com.au pty ltd
15870 371 375 Global Center Frankfurt
209 370 518 Qwest
18994 354 356 Global Crossing
703 352 422 UUNET Technologies, Inc.
11371 309 322 Rhythms NetConnections
4323 286 336 Time Warner Communications, I
4151 285 327 USDA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:407 13:10 15:1 17:6
20:1 24:698 26:1 32:32 38:8 43:5
44:2 53:2 57:15 61:69 62:137 63:1903
64:1366 65:622 66:432 80:34 128:44 129:114
130:17 131:44 132:12 133:1 134:138 135:8
136:22 137:142 138:199 139:46 140:138 141:161
142:63 143:40 144:144 145:11 146:143 147:130
148:214 149:88 150:37 151:210 152:406 153:31
154:23 155:77 156:83 157:121 158:72 159:65
160:45 161:58 162:67 163:157 164:105 165:93
166:184 167:138 168:122 169:36 170:285 171:2
192:5475 193:1932 194:2047 195:792 196:415 198:3715
199:3404 200:2438 201:1 202:2701 203:4611 204:3480
205:2357 206:3019 207:2780 208:3084 209:3224 210:529
211:122 212:801 213:468 214:8 215:13 216:3066
217:385 218:2
End of report
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