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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 22 Aug, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106453
Origin ASes present in the Internet Routing Table: 11475
Origin ASes announcing only one prefix: 4209
Transit ASes present in the Internet Routing Table: 1488
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 39
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: 1241792330
Equivalent to 74 /8s, 4 /16s and 63 /24s
Percentage of available address space announced: 33.5
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 72587
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15894
Prefixes being announced from the APNIC address blocks: 14306
APNIC Region origin ASes present in the Internet Routing Table: 1350
APNIC Region origin ASes announcing only one prefix: 460
APNIC Region transit ASes present in the Internet Routing Table: 222
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 76578669
Equivalent to 4 /8s, 144 /16s and 127 /24s
Percentage of available APNIC address space announced: 75.3
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: 73118
Prefixes being announced from the ARIN address blocks: 52930
ARIN Region origin ASes present in the Internet Routing Table: 6897
ARIN Region origin ASes announcing only one prefix: 2048
ARIN Region transit ASes present in the Internet Routing Table: 690
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 203769528
Equivalent to 12 /8s, 37 /16s and 70 /24s
Percentage of available ARIN address space announced: 75.9
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: 17437
Prefixes being announced from the RIPE address blocks: 13655
RIPE Region origin ASes present in the Internet Routing Table: 3232
RIPE Region origin ASes announcing only one prefix: 1701
RIPE Region transit ASes present in the Internet Routing Table: 576
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105892679
Equivalent to 6 /8s, 79 /16s and 203 /24s
Percentage of available RIPE address space announced: 70.1
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 1588 1316 Telstra Pty Ltd
2764 433 378 connect.com.au pty ltd
703 418 367 UUNET Technologies, Inc.
2907 367 1800 SINET Japan
4755 294 163 Videsh Sanchar Nigam Ltd. Aut
4134 236 1743 Data Communications Bureau
7474 231 288 Optus Communications Pty Ltd
7539 206 175 TANet2, sponsored by NSC, TAI
4740 205 26 OzEmail ISP
4766 188 1361 Korea Internet Exchange for "
7545 153 25 TPG Internet Pty Ltd
9443 145 39 Primus Telecommunications
4786 130 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.,
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
702 697 1731 UUNET Technologies, Inc.
3301 431 918 TeliaNet Sweden
15870 378 12 Global Center Frankfurt
1257 277 521 SWIPnet Swedish IP Network
680 229 2069 DFN-IP service G-WiN
1270 222 861 UUNET Germany
3215 218 496 France Telecom / &Equant
786 184 1890 The JANET IP Service
719 181 291 LANLINK autonomous system
3320 181 1938 Deutsche Telekom AG
5515 175 654 Sonera Finland Autonomous Sys
8708 153 19 Romania Data Systems S.A.
15878 143 12 Global Center Paris
5400 137 66 Concert European Core Network
3303 132 576 Swisscom Ltd
2856 125 774 BTnet UK Regional network
5549 124 66 Nextra Deutschland GmbH + Co.
517 119 271 KPNQwest Germany GmbH
8503 116 3 PCNET - PCNET DATA Network
1267 107 1989 Infostrada S.p.A.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2282 8142 UUNET Technologies, Inc.
7018 1016 7120 AT&T
3908 893 629 Supernet, Inc.
1 885 8678 BBN Planet
2551 846 659 ICG NetAhead, Inc
7046 779 1041 UUNET Technologies, Inc.
1239 703 3252 Sprint
209 514 2151 Qwest
2914 509 2312 Verio, Inc.
690 499 93 Merit Network
4293 474 115 Cable & Wireless USA
3561 422 2399 Cable & Wireless USA
2149 391 296 Performance Systems, Inc.
2548 389 1008 Business Internet, Inc.
3549 369 820 Global Crossing
18994 357 10 Global Crossing
577 348 617 Bell Advanced Communications
3967 339 457 Exodus Communication
4323 336 316 Time Warner Communications, I
6347 331 359 SAVVIS Communications Corpora
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2282 8142 UUNET Technologies, Inc.
1221 1588 1316 Telstra Pty Ltd
7018 1016 7120 AT&T
3908 893 629 Supernet, Inc.
1 885 8678 BBN Planet
2551 846 659 ICG NetAhead, Inc
7046 779 1041 UUNET Technologies, Inc.
1239 703 3252 Sprint
702 697 1731 UUNET Technologies, Inc.
209 514 2151 Qwest
2914 509 2312 Verio, Inc.
690 499 93 Merit Network
4293 474 115 Cable & Wireless USA
2764 433 378 connect.com.au pty ltd
3301 431 918 TeliaNet Sweden
3561 422 2399 Cable & Wireless USA
703 418 367 UUNET Technologies, Inc.
2149 391 296 Performance Systems, Inc.
2548 389 1008 Business Internet, Inc.
15870 378 12 Global Center Frankfurt
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
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
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
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 /9:7 /10:6 /11:11 /12:32
/13:83 /14:224 /15:375 /16:6941 /17:1213 /18:2301
/19:6849 /20:5605 /21:4623 /22:6832 /23:8662 /24:60626
/25:348 /26:371 /27:356 /28:334 /29:272 /30:276
/31:2 /32:86
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1439 1588 Telstra Pty Ltd
701 1434 2282 UUNET Technologies, Inc.
3908 746 893 Supernet, Inc.
2551 742 846 ICG NetAhead, Inc
7046 604 779 UUNET Technologies, Inc.
7018 522 1016 AT&T
690 495 499 Merit Network
4293 457 474 Cable & Wireless USA
702 450 697 UUNET Technologies, Inc.
1 420 885 BBN Planet
2764 386 433 connect.com.au pty ltd
1239 385 703 Sprint
15870 374 378 Global Center Frankfurt
209 364 514 Qwest
18994 355 357 Global Crossing
703 348 418 UUNET Technologies, Inc.
11371 309 322 Rhythms NetConnections
4323 287 336 Time Warner Communications, I
4151 285 326 USDA
2548 279 389 Business Internet, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 9:1 12:400 13:10 15:1 17:6
20:1 24:679 26:1 32:32 38:8 43:1
44:2 53:2 55:1 57:13 61:67 62:138
63:1906 64:1364 65:594 66:429 80:27 128:44
129:111 130:19 131:44 132:12 133:1 134:182
135:9 136:22 137:123 138:203 139:46 140:141
141:160 142:63 143:40 144:146 145:11 146:144
147:129 148:216 149:89 150:37 151:212 152:411
153:31 154:23 155:77 156:84 157:116 158:73
159:65 160:43 161:58 162:64 163:153 164:104
165:92 166:186 167:144 168:119 169:33 170:274
171:2 192:5420 193:1915 194:2044 195:808 196:411
198:3714 199:3402 200:2413 201:1 202:2735 203:4590
204:3517 205:2379 206:2943 207:2735 208:3088 209:3134
210:516 211:125 212:800 213:463 214:9 215:13
216:3030 217:379 218:2
End of report
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