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[bgp-stats] Routing Table Report - Japan view
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 04:00 +10GMT Sun 17 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109855
Prefixes after maximum aggregation: 72285
Unique aggregates announced to Internet: 53112
Total ASes present in the Internet Routing Table: 12753
Origin-only ASes present in the Internet Routing Table: 11032
Origin ASes announcing only one prefix: 4832
Transit ASes present in the Internet Routing Table: 1721
Transit-only ASes present in the Internet Routing Table: 56
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 58
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: 1161158824
Equivalent to 69 /8s, 53 /16s and 224 /24s
Percentage of available address space announced: 31.3
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73529
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17964
Total APNIC prefixes after maximum aggregation: 10699
Prefixes being announced from the APNIC address blocks: 16483
Unique aggregates announced from the APNIC address blocks: 10002
APNIC Region origin ASes present in the Internet Routing Table: 1463
APNIC Region origin ASes announcing only one prefix: 481
APNIC Region transit ASes present in the Internet Routing Table: 258
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 81859392
Equivalent to 4 /8s, 225 /16s and 19 /24s
Percentage of available APNIC address space announced: 60.5
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73476
Total ARIN prefixes after maximum aggregation: 47446
Prefixes being announced from the ARIN address blocks: 51937
Unique aggregates announced from the ARIN address blocks: 17341
ARIN Region origin ASes present in the Internet Routing Table: 7552
ARIN Region origin ASes announcing only one prefix: 2360
ARIN Region transit ASes present in the Internet Routing Table: 773
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 183057604
Equivalent to 10 /8s, 233 /16s and 60 /24s
Percentage of available ARIN address space announced: 68.2
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 - 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: 18358
Total RIPE prefixes after maximum aggregation: 14140
Prefixes being announced from the RIPE address blocks: 15135
Unique aggregates announced from the RIPE address blocks: 10063
RIPE Region origin ASes present in the Internet Routing Table: 3682
RIPE Region origin ASes announcing only one prefix: 1991
RIPE Region transit ASes present in the Internet Routing Table: 676
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107523616
Equivalent to 6 /8s, 104 /16s and 174 /24s
Percentage of available RIPE address space announced: 71.2
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, 24576 - 25599
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 MaxAgg Description
1221 1288 1228 950 Telstra Pty Ltd
4538 464 1194 15 China Education and Research
703 407 334 316 UUNET Technologies, Inc.
2907 404 1910 371 SINET Japan
2764 385 361 361 connect.com.au pty ltd
7474 298 289 202 Optus Communications Pty Ltd
4755 297 111 83 Videsh Sanchar Nigam Ltd. Aut
4134 274 1962 97 Data Communications Bureau
9443 274 44 63 Primus Telecommunications
9394 254 113 4 CHINA RAILWAY Internet(CRNET)
17557 237 15 101 Pakistan Telecom
4766 208 1516 146 Korea Internet Exchange for "
4804 165 84 68 Microplex PTY LTD
7539 164 253 157 TANet2, sponsored by NSC, TAI
9583 149 32 5 Satyam Infoway Ltd.,
9768 137 385 82 Korea Telecom
4713 127 906 104 NTT Communications Corporatio
7657 123 22 86 The Internet Group Limited
4780 118 186 40 Digital United Inc.
17676 117 1872 17 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1032 2611 843 UUNET Technologies, Inc.
3301 394 924 349 TeliaNet Sweden
3215 260 570 157 France Telecom / &Equant
1257 235 486 231 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5515 216 697 171 Sonera Finland Autonomous Sys
3320 197 1964 172 Deutsche Telekom AG
5400 197 83 92 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 157 23 145 Romania Data Systems S.A.
2856 129 788 118 BTnet UK Regional network
3303 124 579 124 Swisscom Ltd
12302 123 8 44 MobiFon S.A.
8297 118 37 66 Teleglobe Autonomous System i
3269 117 694 71 TELECOM ITALIA
517 102 227 100 KPNQwest Germany GmbH
9051 101 6 25 INCONET Autonomous System
2874 97 100 37 Global One Services AB
5511 92 192 80 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2138 8355 1507 UUNET Technologies, Inc.
7018 1223 7528 915 AT&T
3908 843 1675 481 Supernet, Inc.
1 840 8124 610 BBN Planet
1239 797 3367 625 Sprint
4323 642 436 254 Time Warner Communications, I
852 627 1128 415 Telus Advanced Communications
7046 619 835 404 UUNET Technologies, Inc.
209 556 1993 320 Qwest
7132 516 535 156 Southwestern Bell Internet Se
3549 484 843 243 Global Crossing
690 436 67 282 Merit Network
2914 422 2177 419 Verio, Inc.
7843 385 313 50 Adelphia Corp.
705 379 116 271 UUNET Technologies, Inc.
2149 371 224 310 Performance Systems, Inc.
3741 345 731 235 The Internet Solution
2386 329 371 187 AT&T Data Communications Serv
6197 326 215 168 BellSouth Network Solutions,
577 319 602 213 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 464 449 China Education and Research
4323 642 388 Time Warner Communications, I
3908 843 362 Supernet, Inc.
7132 516 360 Southwestern Bell Internet Se
1221 1288 338 Telstra Pty Ltd
7843 385 335 Adelphia Corp.
7018 1223 308 AT&T
4151 305 289 USDA
6198 309 276 BellSouth Network Solutions,
11371 277 271 Rhythms NetConnections
9394 254 250 CHINA RAILWAY Internet(CRNET)
3549 484 241 Global Crossing
6347 318 237 SAVVIS Communications Corpora
209 556 236 Qwest
1 840 230 BBN Planet
7029 245 230 Alltel Information Services,
7046 619 215 UUNET Technologies, Inc.
4755 297 214 Videsh Sanchar Nigam Ltd. Aut
852 627 212 Telus Advanced Communications
9443 274 211 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64581 PRIVATE 192.89.47.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.49.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.158.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.183.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.190.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.191.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.192.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.193.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.194.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.130.46.0/24 5515 Sonera Finland Auton
64553 PRIVATE 192.130.156.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.181.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.236.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.244.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.245.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.246.0/23 5515 Sonera Finland Auton
64581 PRIVATE 192.194.248.0/23 5515 Sonera Finland Auton
64581 PRIVATE 193.208.88.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.209.70.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.209.129.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.27.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.59.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.120.0/23 5515 Sonera Finland Auton
64581 PRIVATE 193.210.122.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.123.0/24 5515 Sonera Finland Auton
64558 PRIVATE 193.211.44.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.211.61.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.71.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.164.0/22 5515 Sonera Finland Auton
64581 PRIVATE 194.89.246.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.248.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.249.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.64.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.65.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.66.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.67.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.68.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.69.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.70.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.71.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.137.62.0/24 5515 Sonera Finland Auton
64558 PRIVATE 194.137.237.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.142.170.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.104.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.157.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.158.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.159.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.160.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.178.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.250.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.251.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.252.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.252.103.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.252.104.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.252.202.0/23 5515 Sonera Finland Auton
64581 PRIVATE 195.156.255.0/24 5515 Sonera Finland Auton
65534 PRIVATE 195.166.128.0/20 12885 BANDX-UK-AS
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
96.0.0.0/20 3549 Global Crossing
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
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.
153.36.0.0/14 701 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
189.186.184.0/24 4471 Michigan Internet Cooperative
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 /10:8 /11:14 /12:35
/13:89 /14:230 /15:405 /16:7184 /17:1387 /18:2556
/19:7417 /20:6919 /21:4911 /22:7518 /23:9169 /24:61072
/25:217 /26:239 /27:103 /28:91 /29:93 /30:127
/31:0 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1383 2138 UUNET Technologies, Inc.
1221 1145 1288 Telstra Pty Ltd
702 657 1032 UUNET Technologies, Inc.
7018 641 1223 AT&T
3908 576 843 Supernet, Inc.
4323 512 642 Time Warner Communications, I
1239 455 797 Sprint
7046 436 619 UUNET Technologies, Inc.
1 432 840 BBN Planet
690 432 436 Merit Network
852 381 627 Telus Advanced Communications
209 369 556 Qwest
3549 347 484 Global Crossing
2764 341 385 connect.com.au pty ltd
703 328 407 UUNET Technologies, Inc.
705 325 379 UUNET Technologies, Inc.
2149 279 371 Performance Systems, Inc.
6197 275 326 BellSouth Network Solutions,
7066 272 301 Virginia Polytechnic Institut
11371 271 277 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:482 13:10 15:1 17:5
20:2 24:760 25:1 32:68 38:9 40:6
44:1 57:14 61:273 62:171 63:1885 64:1164
65:1070 66:822 67:53 68:4 80:207 81:7
128:64 129:122 130:23 131:56 132:11 133:3
134:126 135:10 136:282 137:102 138:147 139:48
140:189 141:64 142:83 143:37 144:145 145:11
146:219 147:157 148:134 149:92 150:41 151:50
152:342 153:33 154:8 155:89 156:76 157:115
158:73 159:125 160:24 161:55 162:139 163:107
164:98 165:123 166:224 167:188 168:96 169:50
170:289 171:2 189:1 192:5433 193:2224 194:2108
195:797 196:428 198:3701 199:3219 200:2365 201:1
202:3048 203:4545 204:3309 205:2148 206:2504 207:2643
208:2570 209:2797 210:558 211:201 212:874 213:589
214:9 215:18 216:3010 217:462 218:21
End of report
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