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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 Wed 05 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113182
Prefixes after maximum aggregation: 73272
Unique aggregates announced to Internet: 52590
Total ASes present in the Internet Routing Table: 13180
Origin-only ASes present in the Internet Routing Table: 11441
Origin ASes announcing only one prefix: 5025
Transit ASes present in the Internet Routing Table: 1739
Transit-only ASes present in the Internet Routing Table: 53
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 38
Number of addresses announced to Internet: 1179202892
Equivalent to 70 /8s, 73 /16s and 53 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 46121
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17925
Total APNIC prefixes after maximum aggregation: 11002
Prefixes being announced from the APNIC address blocks: 16378
Unique aggregates announced from the APNIC address blocks: 9866
APNIC Region origin ASes present in the Internet Routing Table: 1525
APNIC Region origin ASes announcing only one prefix: 504
APNIC Region transit ASes present in the Internet Routing Table: 268
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89887328
Equivalent to 5 /8s, 91 /16s and 146 /24s
Percentage of available APNIC address space announced: 66.5
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: 75982
Total ARIN prefixes after maximum aggregation: 47767
Prefixes being announced from the ARIN address blocks: 54100
Unique aggregates announced from the ARIN address blocks: 16591
ARIN Region origin ASes present in the Internet Routing Table: 7775
ARIN Region origin ASes announcing only one prefix: 2470
ARIN Region transit ASes present in the Internet Routing Table: 759
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 192961220
Equivalent to 11 /8s, 128 /16s and 90 /24s
Percentage of available ARIN address space announced: 71.9
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 - 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: 19275
Total RIPE prefixes after maximum aggregation: 14503
Prefixes being announced from the RIPE address blocks: 15999
Unique aggregates announced from the RIPE address blocks: 10563
RIPE Region origin ASes present in the Internet Routing Table: 3827
RIPE Region origin ASes announcing only one prefix: 2051
RIPE Region transit ASes present in the Internet Routing Table: 695
Average RIPE Region AS path length visible: 6.0
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 109919008
Equivalent to 6 /8s, 141 /16s and 59 /24s
Percentage of available RIPE address space announced: 72.8
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 1266 1222 909 Telstra Pty Ltd
4538 488 1258 18 China Education and Research
2907 426 1861 367 SINET Japan
703 405 350 324 UUNET Technologies, Inc.
2764 382 359 349 connect.com.au pty ltd
7474 307 291 203 Optus Communications Pty Ltd
4134 286 2100 99 Data Communications Bureau
17557 269 18 103 Pakistan Telecom
9443 267 44 64 Primus Telecommunications
4766 225 1516 156 Korea Internet Exchange for "
4814 178 70 12 China Telecom (Group) - Beiji
7539 154 219 148 TANet2, sponsored by NSC, TAI
9583 153 24 71 Satyam Infoway Ltd.,
9768 147 387 76 Korea Telecom
17676 146 2258 23 XTAGE CORPORATION
7657 136 22 86 The Internet Group Limited
4755 122 85 31 Videsh Sanchar Nigam Ltd. Aut
4780 116 186 39 Digital United Inc.
4713 115 1009 106 NTT Communications Corporatio
9800 114 186 22 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1020 2606 847 UUNET Technologies, Inc.
3301 397 908 348 TeliaNet Sweden
3352 278 521 27 Ibernet, Internet Access Netw
3215 267 599 165 France Telecom / &Equant
5515 266 783 176 Sonera Finland Autonomous Sys
3320 235 1948 188 Deutsche Telekom AG
680 231 2149 230 DFN-IP service G-WiN
1257 206 430 203 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 190 290 128 LANLINK autonomous system
786 182 1858 181 The JANET IP Service
8708 148 23 140 Romania Data Systems S.A.
12302 133 10 44 MobiFon S.A.
2856 125 789 115 BTnet UK Regional network
3303 117 546 116 Swisscom Ltd
8297 114 57 65 Teleglobe Autonomous System i
3269 113 692 70 TELECOM ITALIA
3246 107 300 101 Song Networks / Clinet
3233 104 7 53 RNC - Romanian Natioanal R&D
517 97 225 93 KPNQwest Germany GmbH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2006 9088 1422 UUNET Technologies, Inc.
7018 1296 7548 938 AT&T
3908 904 1641 491 Supernet, Inc.
1239 818 3430 651 Sprint
1 814 8152 451 GENUITY
852 802 1192 451 Telus Advanced Communications
705 693 152 277 UUNET Technologies, Inc.
7046 639 901 430 UUNET Technologies, Inc.
4323 627 436 257 Time Warner Communications, I
209 602 1973 336 Qwest
690 578 79 368 Merit Network
7132 571 607 138 Southwestern Bell Internet Se
3549 516 857 325 Global Crossing
7843 505 366 60 Adelphia Corp.
7066 476 202 249 Virginia Polytechnic Institut
2914 396 2108 389 Verio, Inc.
15290 388 299 202 AT&T Canada IES
3741 344 731 236 The Internet Solution
2149 342 191 283 Performance Systems, Inc.
6197 340 245 165 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 488 470 China Education and Research
7843 505 445 Adelphia Corp.
7132 571 433 Southwestern Bell Internet Se
705 693 416 UUNET Technologies, Inc.
3908 904 413 Supernet, Inc.
4323 627 370 Time Warner Communications, I
1 814 363 GENUITY
7018 1296 358 AT&T
1221 1266 357 Telstra Pty Ltd
852 802 351 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 287 271 USDA
209 602 266 Qwest
6347 337 258 SAVVIS Communications Corpora
3352 278 251 Ibernet, Internet Access Netw
7029 260 245 Alltel Information Services,
4355 281 244 EarthLink, Inc.
7066 476 227 Virginia Polytechnic Institut
18566 222 218 Covad Communications
6198 320 215 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.0.2.0/24 1103 SURFnet BV
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
154.150.0.0/16 6494 IDCI
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.
192.83.14.0/24 5515 Sonera Finland Autonomous Sys
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.25.0/24 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 /8:20 /9:6 /10:7 /11:12 /12:34
/13:86 /14:233 /15:415 /16:7231 /17:1435 /18:2589
/19:7577 /20:7190 /21:5106 /22:7790 /23:9489 /24:63226
/25:212 /26:185 /27:83 /28:94 /29:46 /30:86
/31:1 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 624 1020 UUNET Technologies, Inc.
701 561 2006 UUNET Technologies, Inc.
705 497 693 UUNET Technologies, Inc.
3908 491 904 Supernet, Inc.
690 456 578 Merit Network
7066 381 476 Virginia Polytechnic Institut
7018 342 1296 AT&T
7843 296 505 Adelphia Corp.
7046 278 639 UUNET Technologies, Inc.
209 270 602 Qwest
1 259 814 GENUITY
6197 245 340 BellSouth Network Solutions,
7029 245 260 Alltel Information Services,
11371 245 292 Rhythms NetConnections
3301 237 397 TeliaNet Sweden
6198 233 320 BellSouth Network Solutions,
6517 218 240 Yipes Communications, Inc.
18566 218 222 Covad Communications
1239 211 818 Sprint
3549 211 516 Global Crossing
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:509 13:10 15:2 17:6
20:2 24:767 25:1 32:41 38:8 40:6
44:1 57:13 61:232 62:200 63:1941 64:1228
65:1615 66:939 67:84 68:61 80:240 81:28
128:61 129:135 130:23 131:51 132:10 133:3
134:118 135:8 136:246 137:89 138:150 139:57
140:174 141:120 142:82 143:37 144:152 145:13
146:174 147:138 148:203 149:92 150:39 151:97
152:268 153:33 154:14 155:105 156:76 157:132
158:69 159:127 160:18 161:68 162:154 163:99
164:267 165:141 166:227 167:171 168:119 169:58
170:350 171:2 192:5511 193:2400 194:2138 195:970
196:431 198:3717 199:3229 200:2540 202:3007 203:4525
204:3257 205:2174 206:2582 207:2712 208:2666 209:2756
210:597 211:224 212:941 213:629 214:9 215:19
216:2996 217:461 218:27
End of report
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