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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 Thu 20 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116822
Prefixes after maximum aggregation: 75513
Unique aggregates announced to Internet: 52628
Total ASes present in the Internet Routing Table: 13258
Origin-only ASes present in the Internet Routing Table: 11493
Origin ASes announcing only one prefix: 5067
Transit ASes present in the Internet Routing Table: 1765
Transit-only ASes present in the Internet Routing Table: 51
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: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1198660580
Equivalent to 71 /8s, 114 /16s and 27 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 49013
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18422
Total APNIC prefixes after maximum aggregation: 11021
Prefixes being announced from the APNIC address blocks: 16916
Unique aggregates announced from the APNIC address blocks: 9870
APNIC Region origin ASes present in the Internet Routing Table: 1541
APNIC Region origin ASes announcing only one prefix: 503
APNIC Region transit ASes present in the Internet Routing Table: 271
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90232672
Equivalent to 5 /8s, 96 /16s and 215 /24s
Percentage of available APNIC address space announced: 66.7
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: 79180
Total ARIN prefixes after maximum aggregation: 49948
Prefixes being announced from the ARIN address blocks: 54596
Unique aggregates announced from the ARIN address blocks: 16642
ARIN Region origin ASes present in the Internet Routing Table: 7812
ARIN Region origin ASes announcing only one prefix: 2500
ARIN Region transit ASes present in the Internet Routing Table: 766
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 193652564
Equivalent to 11 /8s, 138 /16s and 231 /24s
Percentage of available ARIN address space announced: 72.1
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
25600 - 26623
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: 19220
Total RIPE prefixes after maximum aggregation: 14544
Prefixes being announced from the RIPE address blocks: 15917
Unique aggregates announced from the RIPE address blocks: 10551
RIPE Region origin ASes present in the Internet Routing Table: 3854
RIPE Region origin ASes announcing only one prefix: 2064
RIPE Region transit ASes present in the Internet Routing Table: 711
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 111783456
Equivalent to 6 /8s, 169 /16s and 174 /24s
Percentage of available RIPE address space announced: 74.0
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 1257 1222 904 Telstra Pty Ltd
4538 421 1194 16 China Education and Research
703 414 350 331 UUNET Technologies, Inc.
2907 384 1875 357 SINET Japan
2764 368 358 336 connect.com.au pty ltd
17557 313 21 117 Pakistan Telecom
7474 309 291 207 Optus Communications Pty Ltd
4755 295 116 81 Videsh Sanchar Nigam Ltd. Aut
4134 290 2132 102 Data Communications Bureau
9443 251 45 67 Primus Telecommunications
4766 216 1504 154 Korea Internet Exchange for "
4814 197 79 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 172 32 5 Satyam Infoway Ltd.,
17676 149 2306 22 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 139 22 87 The Internet Group Limited
9800 115 187 23 CHINA UNICOM
4621 112 11 59 UNINET-TH
4780 112 186 39 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1018 2618 843 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 279 537 27 Ibernet, Internet Access Netw
3215 265 598 162 France Telecom / &Equant
680 233 2149 230 DFN-IP service G-WiN
3320 233 1962 186 Deutsche Telekom AG
5515 205 783 171 Sonera Finland Autonomous Sys
5400 204 83 94 Concert European Core Network
1257 203 430 200 SWIPnet Swedish IP Network
719 191 306 129 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 132 546 131 Swisscom Ltd
2856 124 785 114 BTnet UK Regional network
12302 122 10 29 MobiFon S.A.
3269 113 692 70 TELECOM ITALIA
8297 111 55 64 Teleglobe Autonomous System i
3246 108 300 103 Song Networks / Clinet
3233 102 6 56 RNC - Romanian Natioanal R&D
2874 98 85 38 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2149 2962 354 2402 Performance Systems, Inc.
701 2012 8987 1408 UUNET Technologies, Inc.
7018 1293 7453 936 AT&T
3908 908 1642 495 Supernet, Inc.
1239 812 3407 648 Sprint
705 799 188 273 UUNET Technologies, Inc.
1 701 8147 451 GENUITY
852 681 1175 446 Telus Advanced Communications
4323 629 436 258 Time Warner Communications, I
7843 616 375 60 Adelphia Corp.
209 610 1975 342 Qwest
7046 598 860 387 UUNET Technologies, Inc.
690 588 81 376 Merit Network
7132 577 659 134 Southwestern Bell Internet Se
174 525 4608 36 PSINet Inc.
7066 475 202 249 Virginia Polytechnic Institut
3549 459 857 323 Global Crossing
2914 395 2109 387 Verio, Inc.
15290 385 299 198 AT&T Canada IES
6197 346 247 170 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 2012 604 UUNET Technologies, Inc.
7843 616 556 Adelphia Corp.
705 799 526 UUNET Technologies, Inc.
174 525 489 PSINet Inc.
7132 577 443 Southwestern Bell Internet Se
3908 908 413 Supernet, Inc.
4538 421 405 China Education and Research
4323 629 371 Time Warner Communications, I
7018 1293 357 AT&T
1221 1257 353 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 610 268 Qwest
6347 341 263 SAVVIS Communications Corpora
3352 279 252 Ibernet, Internet Access Netw
1 701 250 GENUITY
4355 302 249 EarthLink, Inc.
7029 263 248 Alltel Information Services,
852 681 235 Telus Advanced Communications
7066 475 226 Virginia Polytechnic Institut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
13136 UNALLOCATED 80.85.128.0/20 16243 Virtu Secure Webserv
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
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 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:21 /9:6 /10:7 /11:12 /12:35
/13:89 /14:234 /15:418 /16:7252 /17:1458 /18:2632
/19:7671 /20:7267 /21:5103 /22:7853 /23:9544 /24:66530
/25:193 /26:170 /27:80 /28:75 /29:51 /30:82
/31:1 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2422 2962 Performance Systems, Inc.
702 625 1018 UUNET Technologies, Inc.
705 594 799 UUNET Technologies, Inc.
701 572 2012 UUNET Technologies, Inc.
3908 496 908 Supernet, Inc.
690 466 588 Merit Network
174 435 525 PSINet Inc.
7843 399 616 Adelphia Corp.
7066 380 475 Virginia Polytechnic Institut
7018 345 1293 AT&T
209 275 610 Qwest
6197 248 346 BellSouth Network Solutions,
7029 248 263 Alltel Information Services,
11371 245 292 Rhythms NetConnections
7046 242 598 UUNET Technologies, Inc.
3301 238 402 TeliaNet Sweden
6198 233 320 BellSouth Network Solutions,
18566 220 224 Covad Communications
6517 215 237 Yipes Communications, Inc.
1239 210 812 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:508 13:10 15:2 17:6
20:2 24:807 25:1 32:41 38:2706 40:6
44:1 57:13 61:267 62:204 63:1935 64:1234
65:1654 66:967 67:84 68:179 80:242 81:30
128:60 129:140 130:24 131:49 132:11 133:3
134:120 135:8 136:244 137:93 138:151 139:60
140:142 141:121 142:83 143:37 144:152 145:15
146:173 147:138 148:214 149:93 150:40 151:127
152:264 153:33 154:19 155:101 156:76 157:126
158:68 159:127 160:18 161:68 162:154 163:102
164:276 165:132 166:229 167:173 168:130 169:59
170:353 171:3 192:5490 193:2367 194:2077 195:956
196:395 198:3686 199:3243 200:2525 202:3243 203:4636
204:3429 205:2182 206:2742 207:2616 208:2674 209:2673
210:582 211:223 212:908 213:640 214:9 215:19
216:2968 217:454 218:40 219:41
End of report
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