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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 23 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116788
Prefixes after maximum aggregation: 75451
Unique aggregates announced to Internet: 54452
Total ASes present in the Internet Routing Table: 13271
Origin-only ASes present in the Internet Routing Table: 11504
Origin ASes announcing only one prefix: 5074
Transit ASes present in the Internet Routing Table: 1767
Transit-only ASes present in the Internet Routing Table: 49
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: 3
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: 1190730972
Equivalent to 70 /8s, 249 /16s and 28 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 48931
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18430
Total APNIC prefixes after maximum aggregation: 11043
Prefixes being announced from the APNIC address blocks: 16942
Unique aggregates announced from the APNIC address blocks: 10431
APNIC Region origin ASes present in the Internet Routing Table: 1544
APNIC Region origin ASes announcing only one prefix: 504
APNIC Region transit ASes present in the Internet Routing Table: 270
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87353696
Equivalent to 5 /8s, 52 /16s and 233 /24s
Percentage of available APNIC address space announced: 64.6
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: 79137
Total ARIN prefixes after maximum aggregation: 49862
Prefixes being announced from the ARIN address blocks: 54705
Unique aggregates announced from the ARIN address blocks: 17927
ARIN Region origin ASes present in the Internet Routing Table: 7819
ARIN Region origin ASes announcing only one prefix: 2504
ARIN Region transit ASes present in the Internet Routing Table: 769
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 188934484
Equivalent to 11 /8s, 66 /16s and 233 /24s
Percentage of available ARIN address space announced: 70.4
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: 14546
Prefixes being announced from the RIPE address blocks: 15911
Unique aggregates announced from the RIPE address blocks: 10545
RIPE Region origin ASes present in the Internet Routing Table: 3860
RIPE Region origin ASes announcing only one prefix: 2066
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: 111827744
Equivalent to 6 /8s, 170 /16s and 91 /24s
Percentage of available RIPE address space announced: 74.1
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 1259 1222 906 Telstra Pty Ltd
4538 419 1194 16 China Education and Research
703 418 357 334 UUNET Technologies, Inc.
2907 384 1875 357 SINET Japan
2764 367 358 336 connect.com.au pty ltd
7474 311 292 208 Optus Communications Pty Ltd
17557 300 20 115 Pakistan Telecom
4134 290 2132 102 Data Communications Bureau
4755 278 109 76 Videsh Sanchar Nigam Ltd. Aut
9443 251 45 67 Primus Telecommunications
4766 216 1504 154 Korea Internet Exchange for "
4814 196 79 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 173 32 5 Satyam Infoway Ltd.,
17676 150 2322 23 XTAGE CORPORATION
9768 146 386 75 Korea Telecom
7657 139 22 87 The Internet Group Limited
9800 116 191 24 CHINA UNICOM
4780 112 186 39 Digital United Inc.
4739 111 56 102 Commerical Internet eXchange
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1019 2601 843 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 278 537 27 Ibernet, Internet Access Netw
3215 261 582 161 France Telecom / &Equant
3320 234 1962 187 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 206 783 172 Sonera Finland Autonomous Sys
1257 204 430 201 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core 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 133 546 132 Swisscom Ltd
2856 125 786 115 BTnet UK Regional network
12302 125 18 32 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 2867 349 2319 Performance Systems, Inc.
701 2013 9226 1401 UUNET Technologies, Inc.
7018 1286 7453 932 AT&T
3908 912 1642 497 Supernet, Inc.
1239 828 3363 653 Sprint
705 797 188 271 UUNET Technologies, Inc.
1 701 8147 451 GENUITY
852 673 1173 449 Telus Advanced Communications
4323 631 438 259 Time Warner Communications, I
209 610 1959 342 Qwest
7843 600 375 60 Adelphia Corp.
7046 596 844 383 UUNET Technologies, Inc.
690 584 80 370 Merit Network
7132 578 659 134 Southwestern Bell Internet Se
174 573 4608 37 PSINet Inc.
7066 476 202 249 Virginia Polytechnic Institut
3549 457 841 321 Global Crossing
2914 394 2101 386 Verio, Inc.
15290 386 299 197 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 2013 612 UUNET Technologies, Inc.
7843 600 540 Adelphia Corp.
174 573 536 PSINet Inc.
705 797 526 UUNET Technologies, Inc.
7132 578 444 Southwestern Bell Internet Se
3908 912 415 Supernet, Inc.
4538 419 403 China Education and Research
4323 631 372 Time Warner Communications, I
7018 1286 354 AT&T
1221 1259 353 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 288 272 USDA
209 610 268 Qwest
6347 341 263 SAVVIS Communications Corpora
3352 278 251 Ibernet, Internet Access Netw
1 701 250 GENUITY
4355 302 249 EarthLink, Inc.
7029 263 248 Alltel Information Services,
7066 476 227 Virginia Polytechnic Institut
4454 248 225 OIR Telecommunications, State
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
13136 UNALLOCATED 80.85.128.0/20 16243 Virtu Secure Webserv
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
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 /8:19 /9:6 /10:7 /11:12 /12:36
/13:90 /14:236 /15:421 /16:7251 /17:1463 /18:2633
/19:7670 /20:7275 /21:5090 /22:7848 /23:9562 /24:66488
/25:190 /26:170 /27:80 /28:75 /29:46 /30:82
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2329 2867 Performance Systems, Inc.
702 627 1019 UUNET Technologies, Inc.
705 594 797 UUNET Technologies, Inc.
701 575 2013 UUNET Technologies, Inc.
3908 499 912 Supernet, Inc.
174 478 573 PSINet Inc.
690 463 584 Merit Network
7843 384 600 Adelphia Corp.
7066 381 476 Virginia Polytechnic Institut
7018 342 1286 AT&T
209 275 610 Qwest
6197 248 346 BellSouth Network Solutions,
7029 248 263 Alltel Information Services,
11371 245 292 Rhythms NetConnections
7046 241 596 UUNET Technologies, Inc.
3301 238 402 TeliaNet Sweden
6198 234 321 BellSouth Network Solutions,
18566 221 225 Covad Communications
1239 216 828 Sprint
6517 216 238 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:510 13:10 15:2 17:6
20:2 24:793 25:1 32:38 38:2649 40:6
44:1 57:13 61:266 62:204 63:1918 64:1237
65:1662 66:997 67:87 68:177 80:256 81:30
128:60 129:135 130:24 131:48 132:11 133:3
134:120 135:8 136:244 137:94 138:149 139:60
140:142 141:121 142:83 143:37 144:152 145:14
146:174 147:138 148:218 149:91 150:40 151:67
152:262 153:33 154:19 155:101 156:77 157:127
158:69 159:128 160:18 161:68 162:154 163:103
164:280 165:133 166:228 167:172 168:131 169:59
170:356 171:3 192:5466 193:2376 194:2081 195:955
196:395 198:3679 199:3234 200:2544 202:3241 203:4673
204:3433 205:2188 206:2741 207:2627 208:2673 209:2675
210:574 211:226 212:895 213:635 214:9 215:19
216:2984 217:462 218:39 219:41
End of report
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