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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 14 Aug, 2001
Analysis Summary
----------------
BGP routing table entries examined: 106338
Origin ASes present in the Internet Routing Table: 11421
Origin ASes announcing only one prefix: 4171
Transit ASes present in the Internet Routing Table: 1486
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 36
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 16
Number of addresses announced to Internet: 1223098802
Equivalent to 72 /8s, 231 /16s and 1 /24s
Percentage of available address space announced: 33.0
Percentage of allocated address space announced: 63.5
Percentage of available address space allocated: 51.9
Total number of prefixes smaller than registry allocations: 72561
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 15858
Prefixes being announced from the APNIC address blocks: 14199
APNIC Region origin ASes present in the Internet Routing Table: 1349
APNIC Region origin ASes announcing only one prefix: 458
APNIC Region transit ASes present in the Internet Routing Table: 220
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 76152213
Equivalent to 4 /8s, 137 /16s and 253 /24s
Percentage of available APNIC address space announced: 74.9
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: 73006
Prefixes being announced from the ARIN address blocks: 52811
ARIN Region origin ASes present in the Internet Routing Table: 6862
ARIN Region origin ASes announcing only one prefix: 2026
ARIN Region transit ASes present in the Internet Routing Table: 684
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 203253730
Equivalent to 12 /8s, 29 /16s and 103 /24s
Percentage of available ARIN address space announced: 75.7
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: 17471
Prefixes being announced from the RIPE address blocks: 13626
RIPE Region origin ASes present in the Internet Routing Table: 3212
RIPE Region origin ASes announcing only one prefix: 1687
RIPE Region transit ASes present in the Internet Routing Table: 583
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 105501323
Equivalent to 6 /8s, 73 /16s and 210 /24s
Percentage of available RIPE address space announced: 69.9
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 /20 equiv Description
1221 1596 1317 Telstra Pty Ltd
2764 435 377 connect.com.au pty ltd
703 417 367 UUNET Technologies, Inc.
2907 370 1801 SINET Japan
4755 292 162 Videsh Sanchar Nigam Ltd. Aut
4134 237 1745 Data Communications Bureau
7474 232 288 Optus Communications Pty Ltd
4740 211 26 OzEmail ISP
7539 196 159 TANet2, sponsored by NSC, TAI
4766 177 1336 Korea Internet Exchange for "
7545 157 27 TPG Internet Pty Ltd
9443 144 39 Primus Telecommunications
4786 131 17 NetConnect Communications Pty
4763 120 69 Telstra New Zealand
17561 116 167 Internet service provision to
9583 114 61 Satyam Infoway Ltd.,
4713 112 880 NTT Communications Corporatio
7586 112 17 Paradox Digital Pty Ltd
4812 110 278 China Telecom (Group)
4732 105 372 DDI CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 700 1748 UUNET Technologies, Inc.
3301 431 918 TeliaNet Sweden
15870 390 12 Global Center Frankfurt
1257 280 521 SWIPnet Swedish IP Network
1270 236 863 UUNET Germany
3215 230 496 France Telecom / &Equant
680 229 2069 DFN-IP service G-WiN
15878 201 8 Global Center Paris
786 184 1890 The JANET IP Service
3320 182 1942 Deutsche Telekom AG
719 180 291 LANLINK autonomous system
5515 174 654 Sonera Finland Autonomous Sys
8708 154 19 Romania Data Systems S.A.
5400 137 66 Concert European Core Network
3303 132 576 Swisscom Ltd
2856 126 776 BTnet UK Regional network
5549 123 66 Nextra Deutschland GmbH + Co.
517 119 271 KPNQwest Germany GmbH
8503 117 3 PCNET - PCNET DATA Network
5511 111 170 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2303 8133 UUNET Technologies, Inc.
7018 998 7063 AT&T
3908 886 628 Supernet, Inc.
1 885 8720 BBN Planet
2551 803 657 ICG NetAhead, Inc
7046 764 1040 UUNET Technologies, Inc.
1239 689 3218 Sprint
2914 511 2296 Verio, Inc.
690 502 93 Merit Network
209 477 2137 Qwest
4293 476 97 Cable & Wireless USA
3561 425 2414 Cable & Wireless USA
2548 390 1000 Business Internet, Inc.
2149 387 312 Performance Systems, Inc.
18994 365 10 Global Crossing
3549 363 818 Global Crossing
577 348 617 Bell Advanced Communications
4323 348 318 Time Warner Communications, I
11371 339 100 Rhythms NetConnections
3967 337 456 Exodus Communication
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2303 8133 UUNET Technologies, Inc.
1221 1596 1317 Telstra Pty Ltd
7018 998 7063 AT&T
3908 886 628 Supernet, Inc.
1 885 8720 BBN Planet
2551 803 657 ICG NetAhead, Inc
7046 764 1040 UUNET Technologies, Inc.
702 700 1748 UUNET Technologies, Inc.
1239 689 3218 Sprint
2914 511 2296 Verio, Inc.
690 502 93 Merit Network
209 477 2137 Qwest
4293 476 97 Cable & Wireless USA
2764 435 377 connect.com.au pty ltd
3301 431 918 TeliaNet Sweden
3561 425 2414 Cable & Wireless USA
703 417 367 UUNET Technologies, Inc.
2548 390 1000 Business Internet, Inc.
15870 390 12 Global Center Frankfurt
2149 387 312 Performance Systems, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services
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
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.
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
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.168.128.0/24 2907 SINET Japan
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 /11:11 /12:32
/13:83 /14:223 /15:377 /16:6926 /17:1207 /18:2281
/19:6825 /20:5573 /21:4607 /22:6839 /23:8636 /24:60455
/25:334 /26:384 /27:383 /28:389 /29:320 /30:328
/31:2 /32:94
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
1221 1447 1596 Telstra Pty Ltd
701 1443 2303 UUNET Technologies, Inc.
3908 739 886 Supernet, Inc.
2551 696 803 ICG NetAhead, Inc
7046 593 764 UUNET Technologies, Inc.
7018 508 998 AT&T
690 498 502 Merit Network
4293 459 476 Cable & Wireless USA
702 451 700 UUNET Technologies, Inc.
1 415 885 BBN Planet
2764 390 435 connect.com.au pty ltd
15870 386 390 Global Center Frankfurt
1239 373 689 Sprint
18994 363 365 Global Crossing
703 347 417 UUNET Technologies, Inc.
209 343 477 Qwest
11371 326 339 Rhythms NetConnections
4323 299 348 Time Warner Communications, I
18993 295 299 Global Crossing
4151 284 325 USDA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 9:1 12:395 13:10 15:1 17:6
20:1 24:662 26:1 32:32 38:7 43:1
44:2 53:2 55:1 57:12 61:64 62:138
63:1906 64:1317 65:559 66:411 80:31 128:43
129:102 130:20 131:45 132:12 133:1 134:171
135:10 136:22 137:127 138:204 139:45 140:137
141:161 142:62 143:41 144:144 145:11 146:146
147:137 148:219 149:96 150:35 151:212 152:425
153:31 154:24 155:77 156:82 157:115 158:72
159:65 160:42 161:58 162:64 163:160 164:170
165:91 166:185 167:137 168:119 169:34 170:274
171:2 192:5418 193:1915 194:2031 195:827 196:401
198:3732 199:3388 200:2346 201:1 202:2672 203:4576
204:3530 205:2375 206:2949 207:2773 208:3091 209:3076
210:530 211:127 212:790 213:455 214:9 215:13
216:3045 217:392 218:2
End of report
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