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[bgp-stats] Routing Table Report
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 25 Oct, 2001
Analysis Summary
----------------
BGP routing table entries examined: 109413
Origin ASes present in the Internet Routing Table: 11944
Origin ASes announcing only one prefix: 4416
Transit ASes present in the Internet Routing Table: 1566
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: 49
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1255818165
Equivalent to 74 /8s, 218 /16s and 67 /24s
Percentage of available address space announced: 33.9
Percentage of allocated address space announced: 64.7
Percentage of available address space allocated: 52.4
Total number of prefixes smaller than registry allocations: 74524
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16748
Prefixes being announced from the APNIC address blocks: 15231
APNIC Region origin ASes present in the Internet Routing Table: 1383
APNIC Region origin ASes announcing only one prefix: 455
APNIC Region transit ASes present in the Internet Routing Table: 236
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 83129061
Equivalent to 4 /8s, 244 /16s and 114 /24s
Percentage of available APNIC address space announced: 70.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7 and 218/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74697
Prefixes being announced from the ARIN address blocks: 53481
ARIN Region origin ASes present in the Internet Routing Table: 7175
ARIN Region origin ASes announcing only one prefix: 2156
ARIN Region transit ASes present in the Internet Routing Table: 727
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 219243957
Equivalent to 13 /8s, 17 /16s and 101 /24s
Percentage of available ARIN address space announced: 81.7
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 - 23551
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: 17968
Prefixes being announced from the RIPE address blocks: 14393
RIPE Region origin ASes present in the Internet Routing Table: 3389
RIPE Region origin ASes announcing only one prefix: 1805
RIPE Region transit ASes present in the Internet Routing Table: 602
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 109437225
Equivalent to 6 /8s, 133 /16s and 225 /24s
Percentage of available RIPE address space announced: 72.5
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 1571 1307 Telstra Pty Ltd
2764 410 359 connect.com.au pty ltd
703 375 359 UUNET Technologies, Inc.
2907 372 1864 SINET Japan
4755 303 165 Videsh Sanchar Nigam Ltd. Aut
7474 290 274 Optus Communications Pty Ltd
4134 251 1881 Data Communications Bureau
4766 186 1466 Korea Internet Exchange for "
4740 183 27 OzEmail ISP
1659 172 1173 Taiwan Academic Network (TANe
7539 166 158 TANet2, sponsored by NSC, TAI
9443 160 54 Primus Telecommunications
2521 139 171 PSINet Japan
17557 137 9 Pakistan Telecom
4812 132 298 China Telecom (Group)
9768 131 363 Korea Telecom
4786 123 14 NetConnect Communications Pty
9583 123 53 Satyam Infoway Ltd.,
4763 121 69 Telstra New Zealand
4713 118 901 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 930 1941 UUNET Technologies, Inc.
3301 435 950 TeliaNet Sweden
1257 272 516 SWIPnet Swedish IP Network
680 241 2309 DFN-IP service G-WiN
3215 236 539 France Telecom / &Equant
5515 195 688 Sonera Finland Autonomous Sys
3320 190 1940 Deutsche Telekom AG
786 185 1890 The JANET IP Service
5495 175 3 University Network
8708 164 17 Romania Data Systems S.A.
15870 141 10 Global Center Frankfurt
5400 139 64 Concert European Core Network
719 133 289 LANLINK autonomous system
3303 130 560 Swisscom Ltd
2856 129 776 BTnet UK Regional network
1270 124 724 UUNET Germany
5549 124 82 Nextra Deutschland GmbH + Co.
1103 119 3974 SURFnet BV
15878 115 9 Global Center Paris
517 112 252 KPNQwest Germany GmbH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2283 9115 UUNET Technologies, Inc.
3908 1178 1691 Supernet, Inc.
7018 1078 7325 AT&T
1 856 8556 BBN Planet
7046 825 1021 UUNET Technologies, Inc.
1239 728 3241 Sprint
209 594 2239 Qwest
3967 555 464 Exodus Communication
690 523 92 Merit Network
2914 471 2249 Verio, Inc.
4293 451 113 Cable & Wireless USA
2149 429 330 Performance Systems, Inc.
3561 423 2352 Cable & Wireless USA
3549 388 843 Global Crossing
577 351 636 Bell Advanced Communications
4323 350 358 Time Warner Communications, I
705 348 62 UUNET Technologies, Inc.
3741 343 765 The Internet Solution
15290 341 339 AT&T Canada IES
4151 338 1250 USDA
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2283 9115 UUNET Technologies, Inc.
1221 1571 1307 Telstra Pty Ltd
3908 1178 1691 Supernet, Inc.
7018 1078 7325 AT&T
702 930 1941 UUNET Technologies, Inc.
1 856 8556 BBN Planet
7046 825 1021 UUNET Technologies, Inc.
1239 728 3241 Sprint
209 594 2239 Qwest
3967 555 464 Exodus Communication
690 523 92 Merit Network
2914 471 2249 Verio, Inc.
4293 451 113 Cable & Wireless USA
3301 435 950 TeliaNet Sweden
2149 429 330 Performance Systems, Inc.
3561 423 2352 Cable & Wireless USA
2764 410 359 connect.com.au pty ltd
3549 388 843 Global Crossing
703 375 359 UUNET Technologies, Inc.
2907 372 1864 SINET Japan
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 64.42.16.0/20 2914 Verio, Inc.
6971 UNALLOCATED 64.42.32.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.56.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.64.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.80.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.104.0/22 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
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,
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 216.174.200.0/21 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 216.210.128.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.140.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.160.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.176.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.184.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.200.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.216.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.220.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.224.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.232.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.236.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.240.0/20 2914 Verio, Inc.
6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
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
164.235.0.0/16 6025 US DOD NIC Unregistered
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 /10:7 /11:12 /12:34
/13:89 /14:227 /15:392 /16:7035 /17:1312 /18:2431
/19:7059 /20:6011 /21:4834 /22:7177 /23:9211 /24:61702
/25:344 /26:349 /27:288 /28:311 /29:162 /30:203
/31:1 /32:199
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1460 2283 UUNET Technologies, Inc.
1221 1426 1571 Telstra Pty Ltd
3908 896 1178 Supernet, Inc.
7046 647 825 UUNET Technologies, Inc.
702 630 930 UUNET Technologies, Inc.
7018 568 1078 AT&T
690 519 523 Merit Network
4293 436 451 Cable & Wireless USA
209 427 594 Qwest
1 411 856 BBN Planet
1239 405 728 Sprint
3967 380 555 Exodus Communication
2764 365 410 connect.com.au pty ltd
703 309 375 UUNET Technologies, Inc.
2149 306 429 Performance Systems, Inc.
5102 300 312 Ameritech Advanced Data Servi
11371 298 309 Rhythms NetConnections
705 297 348 UUNET Technologies, Inc.
4151 295 338 USDA
4323 288 350 Time Warner Communications, I
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 9:1 12:429 13:10 15:1 17:5
20:1 24:812 25:1 26:1 32:75 38:13
43:2 44:2 52:1 53:2 57:13 61:106
62:154 63:1969 64:1346 65:874 66:500 67:3
80:79 128:52 129:108 130:26 131:47 132:13
133:2 134:130 135:8 136:103 137:94 138:195
139:52 140:187 141:58 142:62 143:39 144:145
145:13 146:229 147:129 148:189 149:89 150:44
151:191 152:391 153:51 154:22 155:84 156:94
157:111 158:73 159:70 160:46 161:60 162:70
163:161 164:121 165:127 166:208 167:157 168:122
169:40 170:287 171:2 192:5429 193:2000 194:2098
195:829 196:461 198:3793 199:3513 200:2465 201:1
202:2810 203:4546 204:3382 205:2207 206:2883 207:2634
208:3043 209:3104 210:604 211:139 212:882 213:512
214:9 215:16 216:3028 217:405 218:2
End of report
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