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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 19 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116698
Prefixes after maximum aggregation: 75474
Unique aggregates announced to Internet: 52609
Total ASes present in the Internet Routing Table: 13243
Origin-only ASes present in the Internet Routing Table: 11476
Origin ASes announcing only one prefix: 5060
Transit ASes present in the Internet Routing Table: 1767
Transit-only ASes present in the Internet Routing Table: 48
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: 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: 1198472676
Equivalent to 71 /8s, 111 /16s and 61 /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: 48940
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18448
Total APNIC prefixes after maximum aggregation: 11021
Prefixes being announced from the APNIC address blocks: 16936
Unique aggregates announced from the APNIC address blocks: 9869
APNIC Region origin ASes present in the Internet Routing Table: 1542
APNIC Region origin ASes announcing only one prefix: 503
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90228064
Equivalent to 5 /8s, 96 /16s and 197 /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: 79057
Total ARIN prefixes after maximum aggregation: 49918
Prefixes being announced from the ARIN address blocks: 54531
Unique aggregates announced from the ARIN address blocks: 16659
ARIN Region origin ASes present in the Internet Routing Table: 7803
ARIN Region origin ASes announcing only one prefix: 2498
ARIN Region transit ASes present in the Internet Routing Table: 763
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 193705556
Equivalent to 11 /8s, 139 /16s and 182 /24s
Percentage of available ARIN address space announced: 72.2
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
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: 19193
Total RIPE prefixes after maximum aggregation: 14535
Prefixes being announced from the RIPE address blocks: 15886
Unique aggregates announced from the RIPE address blocks: 10533
RIPE Region origin ASes present in the Internet Routing Table: 3850
RIPE Region origin ASes announcing only one prefix: 2059
RIPE Region transit ASes present in the Internet Routing Table: 710
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 111754016
Equivalent to 6 /8s, 169 /16s and 59 /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 1261 1222 907 Telstra Pty Ltd
4538 420 1194 16 China Education and Research
703 414 350 331 UUNET Technologies, Inc.
2907 384 1875 357 SINET Japan
2764 369 359 337 connect.com.au pty ltd
17557 313 21 117 Pakistan Telecom
7474 309 291 207 Optus Communications Pty Ltd
4755 294 115 80 Videsh Sanchar Nigam Ltd. Aut
4134 290 2132 102 Data Communications Bureau
9443 248 45 65 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 175 32 5 Satyam Infoway Ltd.,
17676 149 2306 22 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 138 22 86 The Internet Group Limited
9800 115 187 23 CHINA UNICOM
4621 112 11 59 UNINET-TH
4739 112 56 103 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1022 2619 846 UUNET Technologies, Inc.
3301 401 925 351 TeliaNet Sweden
3352 281 537 27 Ibernet, Internet Access Netw
3215 265 598 163 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
786 177 1857 176 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 132 547 131 Swisscom Ltd
2856 124 785 114 BTnet UK Regional network
12302 124 10 31 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 2967 354 2407 Performance Systems, Inc.
701 2005 8989 1404 UUNET Technologies, Inc.
7018 1291 7453 935 AT&T
3908 907 1643 496 Supernet, Inc.
1239 808 3391 646 Sprint
705 806 209 274 UUNET Technologies, Inc.
1 701 8147 451 GENUITY
852 680 1175 446 Telus Advanced Communications
4323 630 436 258 Time Warner Communications, I
7843 615 375 60 Adelphia Corp.
209 605 1972 337 Qwest
7046 599 860 391 UUNET Technologies, Inc.
690 588 81 376 Merit Network
7132 576 659 134 Southwestern Bell Internet Se
174 494 4608 33 PSINet Inc.
7066 475 202 249 Virginia Polytechnic Institut
3549 459 857 322 Global Crossing
2914 395 2109 387 Verio, Inc.
15290 386 299 199 AT&T Canada IES
6197 347 247 170 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
701 2005 601 UUNET Technologies, Inc.
7843 615 555 Adelphia Corp.
705 806 532 UUNET Technologies, Inc.
174 494 461 PSINet Inc.
7132 576 442 Southwestern Bell Internet Se
3908 907 411 Supernet, Inc.
4538 420 404 China Education and Research
4323 630 372 Time Warner Communications, I
7018 1291 356 AT&T
1221 1261 354 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 286 270 USDA
209 605 268 Qwest
6347 338 260 SAVVIS Communications Corpora
3352 281 254 Ibernet, Internet Access Netw
1 701 250 GENUITY
4355 303 250 EarthLink, Inc.
7029 263 248 Alltel Information Services,
852 680 234 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
/13:90 /14:234 /15:418 /16:7254 /17:1457 /18:2636
/19:7673 /20:7257 /21:5085 /22:7846 /23:9524 /24:66454
/25:192 /26:172 /27:80 /28:75 /29:50 /30:82
/31:1 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2428 2967 Performance Systems, Inc.
702 628 1022 UUNET Technologies, Inc.
705 594 806 UUNET Technologies, Inc.
701 568 2005 UUNET Technologies, Inc.
3908 495 907 Supernet, Inc.
690 466 588 Merit Network
174 412 494 PSINet Inc.
7843 398 615 Adelphia Corp.
7066 380 475 Virginia Polytechnic Institut
7018 345 1291 AT&T
209 275 605 Qwest
6197 249 347 BellSouth Network Solutions,
7029 248 263 Alltel Information Services,
11371 245 292 Rhythms NetConnections
7046 243 599 UUNET Technologies, Inc.
3301 238 401 TeliaNet Sweden
6198 232 319 BellSouth Network Solutions,
18566 219 223 Covad Communications
6517 215 237 Yipes Communications, Inc.
1239 207 808 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:508 13:10 15:2 17:6
20:2 24:806 25:1 32:41 38:2688 40:6
44:1 57:13 61:267 62:205 63:1928 64:1236
65:1653 66:967 67:84 68:179 80:237 81:29
128:60 129:140 130:24 131:49 132:11 133:3
134:120 135:8 136:246 137:93 138:151 139:57
140:139 141:121 142:83 143:37 144:152 145:15
146:174 147:138 148:213 149:92 150:40 151:127
152:264 153:33 154:19 155:100 156:76 157:126
158:69 159:127 160:18 161:67 162:154 163:101
164:276 165:132 166:229 167:172 168:130 169:59
170:355 171:3 192:5479 193:2374 194:2072 195:958
196:393 198:3685 199:3225 200:2527 202:3254 203:4645
204:3407 205:2185 206:2740 207:2609 208:2672 209:2673
210:580 211:224 212:906 213:634 214:9 215:19
216:2977 217:450 218:40 219:41
End of report
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