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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 01 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114439
Prefixes after maximum aggregation: 72953
Unique aggregates announced to Internet: 53120
Total ASes present in the Internet Routing Table: 13002
Origin-only ASes present in the Internet Routing Table: 11270
Origin ASes announcing only one prefix: 4950
Transit ASes present in the Internet Routing Table: 1732
Transit-only ASes present in the Internet Routing Table: 52
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
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: 43
Number of addresses announced to Internet: 1189311548
Equivalent to 70 /8s, 227 /16s and 116 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 47671
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18097
Total APNIC prefixes after maximum aggregation: 10891
Prefixes being announced from the APNIC address blocks: 16598
Unique aggregates announced from the APNIC address blocks: 10277
APNIC Region origin ASes present in the Internet Routing Table: 1497
APNIC Region origin ASes announcing only one prefix: 489
APNIC Region transit ASes present in the Internet Routing Table: 266
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84267328
Equivalent to 5 /8s, 5 /16s and 209 /24s
Percentage of available APNIC address space announced: 62.3
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: 77541
Total ARIN prefixes after maximum aggregation: 47730
Prefixes being announced from the ARIN address blocks: 55504
Unique aggregates announced from the ARIN address blocks: 16646
ARIN Region origin ASes present in the Internet Routing Table: 7674
ARIN Region origin ASes announcing only one prefix: 2424
ARIN Region transit ASes present in the Internet Routing Table: 756
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 191495108
Equivalent to 11 /8s, 105 /16s and 251 /24s
Percentage of available ARIN address space announced: 71.3
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: 18801
Total RIPE prefixes after maximum aggregation: 14332
Prefixes being announced from the RIPE address blocks: 15474
Unique aggregates announced from the RIPE address blocks: 10338
RIPE Region origin ASes present in the Internet Routing Table: 3779
RIPE Region origin ASes announcing only one prefix: 2037
RIPE Region transit ASes present in the Internet Routing Table: 694
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 108978480
Equivalent to 6 /8s, 126 /16s and 225 /24s
Percentage of available RIPE address space announced: 72.2
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 1283 1194 944 Telstra Pty Ltd
4538 477 1194 17 China Education and Research
2907 437 1910 373 SINET Japan
703 419 340 325 UUNET Technologies, Inc.
2764 397 362 364 connect.com.au pty ltd
7474 303 291 208 Optus Communications Pty Ltd
4134 280 2036 94 Data Communications Bureau
9443 275 44 63 Primus Telecommunications
17557 269 18 108 Pakistan Telecom
4755 233 108 74 Videsh Sanchar Nigam Ltd. Aut
4766 222 1518 159 Korea Internet Exchange for "
9583 168 32 5 Satyam Infoway Ltd.,
7539 165 238 159 TANet2, sponsored by NSC, TAI
4804 161 84 66 Microplex PTY LTD
9768 146 386 80 Korea Telecom
4814 125 64 5 China Telecom (Group) - Beiji
7657 124 22 87 The Internet Group Limited
17676 122 1952 9 XTAGE CORPORATION
4713 114 993 105 NTT Communications Corporatio
4780 113 186 39 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1026 2579 847 UUNET Technologies, Inc.
3301 394 924 346 TeliaNet Sweden
5515 275 761 173 Sonera Finland Autonomous Sys
3215 265 597 164 France Telecom / &Equant
680 231 2149 230 DFN-IP service G-WiN
3320 228 1946 175 Deutsche Telekom AG
1257 209 462 206 SWIPnet Swedish IP Network
5400 198 82 93 Concert European Core Network
786 179 1858 179 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 143 22 137 Romania Data Systems S.A.
12302 129 9 48 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
8297 122 53 67 Teleglobe Autonomous System i
3303 117 546 116 Swisscom Ltd
3269 116 694 71 TELECOM ITALIA
5511 107 193 94 France Telecom
5536 107 9 39 Internet Egypt Network
2118 102 109 20 EUnet/RELCOM Autonomous Syste
517 101 226 97 KPNQwest Germany GmbH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 4364 8412 1486 UUNET Technologies, Inc.
7018 1284 7520 941 AT&T
3908 866 1660 479 Supernet, Inc.
1239 817 3372 654 Sprint
1 811 8186 455 BBN Planet
7046 811 875 587 UUNET Technologies, Inc.
852 665 1148 422 Telus Advanced Communications
4323 634 436 256 Time Warner Communications, I
705 604 191 288 UUNET Technologies, Inc.
209 584 2000 325 Qwest
7132 569 604 140 Southwestern Bell Internet Se
3549 526 859 322 Global Crossing
690 482 70 316 Merit Network
7066 474 202 250 Virginia Polytechnic Institut
7843 457 341 57 Adelphia Corp.
2914 418 2145 405 Verio, Inc.
2149 348 207 290 Performance Systems, Inc.
6197 347 342 135 BellSouth Network Solutions,
3741 344 731 236 The Internet Solution
6347 330 370 79 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 477 460 China Education and Research
7132 569 429 Southwestern Bell Internet Se
7843 457 400 Adelphia Corp.
3908 866 387 Supernet, Inc.
4323 634 378 Time Warner Communications, I
1 811 356 BBN Planet
7018 1284 343 AT&T
1221 1283 339 Telstra Pty Ltd
705 604 316 UUNET Technologies, Inc.
4151 313 297 USDA
11371 292 286 Rhythms NetConnections
209 584 259 Qwest
6347 330 251 SAVVIS Communications Corpora
7029 261 246 Alltel Information Services,
852 665 243 Telus Advanced Communications
7046 811 224 UUNET Technologies, Inc.
7066 474 224 Virginia Polytechnic Institut
4355 258 222 EarthLink, Inc.
6197 347 212 BellSouth Network Solutions,
9443 275 212 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
112 UNALLOCATED 192.175.48.0/24 7500 A Root DNS Server in
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 BBN Planet
153.147.0.0/16 3561 Cable & Wireless USA
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.31.126.0/23 1103 SURFnet BV
192.31.128.0/21 1103 SURFnet BV
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.
192.83.1.0/24 5515 Sonera Finland Autonomous Sys
192.83.2.0/24 5515 Sonera Finland Autonomous Sys
192.83.8.0/21 5515 Sonera Finland Autonomous Sys
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 /9:8 /10:7 /11:13 /12:33
/13:86 /14:231 /15:405 /16:7194 /17:1426 /18:2610
/19:7490 /20:7076 /21:5047 /22:7810 /23:9609 /24:64600
/25:221 /26:190 /27:86 /28:93 /29:53 /30:90
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 2916 4364 UUNET Technologies, Inc.
702 645 1026 UUNET Technologies, Inc.
3908 450 866 Supernet, Inc.
7046 443 811 UUNET Technologies, Inc.
690 421 482 Merit Network
705 385 604 UUNET Technologies, Inc.
7066 379 474 Virginia Polytechnic Institut
7018 330 1284 AT&T
209 273 584 Qwest
7843 273 457 Adelphia Corp.
6197 247 347 BellSouth Network Solutions,
7029 246 261 Alltel Information Services,
11371 245 292 Rhythms NetConnections
1 243 811 BBN Planet
3301 236 394 TeliaNet Sweden
3549 229 526 Global Crossing
6198 228 304 BellSouth Network Solutions,
6517 224 249 Yipes Communications, Inc.
1239 208 817 Sprint
1580 202 214 HQ, 5th Signal Command
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:2 4:2 9:1 12:498 13:10 15:2
17:7 20:2 24:751 25:1 32:67 38:8
40:6 44:1 57:14 61:200 62:190 63:4011
64:1216 65:1266 66:886 67:262 68:7 80:242
81:17 128:58 129:140 130:22 131:47 132:12
133:3 134:126 135:9 136:315 137:92 138:148
139:49 140:186 141:119 142:77 143:89 144:194
145:12 146:225 147:135 148:163 149:93 150:41
151:59 152:302 153:33 154:2 155:99 156:76
157:127 158:69 159:127 160:24 161:56 162:151
163:108 164:273 165:129 166:225 167:170 168:106
169:54 170:306 171:2 192:5465 193:2311 194:2124
195:818 196:432 198:3744 199:3215 200:2424 202:3147
203:4515 204:3278 205:2180 206:2552 207:2642 208:2617
209:2731 210:659 211:212 212:868 213:602 214:9
215:18 216:3034 217:461 218:20
End of report
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