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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 Fri 03 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 111891
Prefixes after maximum aggregation: 72952
Unique aggregates announced to Internet: 53185
Total ASes present in the Internet Routing Table: 13031
Origin-only ASes present in the Internet Routing Table: 11304
Origin ASes announcing only one prefix: 4966
Transit ASes present in the Internet Routing Table: 1727
Transit-only ASes present in the Internet Routing Table: 52
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 44
Number of addresses announced to Internet: 1189228092
Equivalent to 70 /8s, 226 /16s and 46 /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: 45120
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18116
Total APNIC prefixes after maximum aggregation: 10890
Prefixes being announced from the APNIC address blocks: 16620
Unique aggregates announced from the APNIC address blocks: 10273
APNIC Region origin ASes present in the Internet Routing Table: 1499
APNIC Region origin ASes announcing only one prefix: 489
APNIC Region transit ASes present in the Internet Routing Table: 267
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84259648
Equivalent to 5 /8s, 5 /16s and 179 /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: 74951
Total ARIN prefixes after maximum aggregation: 47726
Prefixes being announced from the ARIN address blocks: 53014
Unique aggregates announced from the ARIN address blocks: 16710
ARIN Region origin ASes present in the Internet Routing Table: 7695
ARIN Region origin ASes announcing only one prefix: 2432
ARIN Region transit ASes present in the Internet Routing Table: 753
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 191536068
Equivalent to 11 /8s, 106 /16s and 155 /24s
Percentage of available ARIN address space announced: 71.4
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: 18824
Total RIPE prefixes after maximum aggregation: 14336
Prefixes being announced from the RIPE address blocks: 15488
Unique aggregates announced from the RIPE address blocks: 10346
RIPE Region origin ASes present in the Internet Routing Table: 3785
RIPE Region origin ASes announcing only one prefix: 2045
RIPE Region transit ASes present in the Internet Routing Table: 689
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 108974384
Equivalent to 6 /8s, 126 /16s and 209 /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 1279 1209 941 Telstra Pty Ltd
4538 477 1194 17 China Education and Research
2907 434 1878 371 SINET Japan
703 419 338 327 UUNET Technologies, Inc.
2764 397 362 364 connect.com.au pty ltd
7474 305 291 208 Optus Communications Pty Ltd
4134 280 2036 94 Data Communications Bureau
9443 274 44 63 Primus Telecommunications
17557 268 18 109 Pakistan Telecom
4755 237 109 75 Videsh Sanchar Nigam Ltd. Aut
4766 221 1518 158 Korea Internet Exchange for "
9583 169 32 5 Satyam Infoway Ltd.,
4804 167 92 66 Microplex PTY LTD
7539 166 238 160 TANet2, sponsored by NSC, TAI
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 115 993 106 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 1037 2580 851 UUNET Technologies, Inc.
3301 394 924 346 TeliaNet Sweden
5515 275 761 173 Sonera Finland Autonomous Sys
3215 264 597 163 France Telecom / &Equant
680 231 2149 230 DFN-IP service G-WiN
3320 230 1947 177 Deutsche Telekom AG
1257 210 462 207 SWIPnet Swedish IP Network
5400 198 82 93 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 165 289 119 LANLINK autonomous system
8708 143 22 137 Romania Data Systems S.A.
12302 130 9 49 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
5536 107 9 39 Internet Egypt Network
2118 106 109 20 EUnet/RELCOM Autonomous Syste
5511 106 191 93 France Telecom
517 101 226 97 KPNQwest Germany GmbH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2052 8345 1467 UUNET Technologies, Inc.
7018 1277 7537 935 AT&T
3908 874 1661 482 Supernet, Inc.
1239 823 3373 660 Sprint
7046 823 878 595 UUNET Technologies, Inc.
1 811 8188 456 BBN Planet
852 663 1148 422 Telus Advanced Communications
4323 632 436 256 Time Warner Communications, I
209 587 1984 325 Qwest
7132 569 604 140 Southwestern Bell Internet Se
3549 529 860 324 Global Crossing
690 493 71 312 Merit Network
7066 473 202 248 Virginia Polytechnic Institut
7843 455 349 48 Adelphia Corp.
2914 421 2146 408 Verio, Inc.
705 378 100 269 UUNET Technologies, Inc.
2149 349 207 291 Performance Systems, Inc.
6197 347 342 135 BellSouth Network Solutions,
3741 344 731 236 The Internet Solution
6347 337 370 81 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 455 407 Adelphia Corp.
3908 874 392 Supernet, Inc.
4323 632 376 Time Warner Communications, I
1 811 355 BBN Planet
7018 1277 342 AT&T
1221 1279 338 Telstra Pty Ltd
4151 304 288 USDA
11371 292 286 Rhythms NetConnections
209 587 262 Qwest
6347 337 256 SAVVIS Communications Corpora
7029 261 246 Alltel Information Services,
852 663 241 Telus Advanced Communications
7046 823 228 UUNET Technologies, Inc.
7066 473 225 Virginia Polytechnic Institut
4355 259 223 EarthLink, Inc.
6197 347 212 BellSouth Network Solutions,
9443 274 211 Primus Telecommunications
6517 241 207 Yipes Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
25707 UNALLOCATED 63.167.148.0/24 7018 AT&T
112 UNALLOCATED 192.175.48.0/24 7500 A Root DNS Server in
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
25733 UNALLOCATED 208.33.184.0/22 1239 Sprint
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
98.45.6.0/24 701 UUNET Technologies, Inc.
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 /9:7 /10:7 /11:13 /12:32
/13:85 /14:231 /15:403 /16:7194 /17:1426 /18:2603
/19:7492 /20:7056 /21:5032 /22:7725 /23:9370 /24:62417
/25:224 /26:191 /27:86 /28:92 /29:53 /30:91
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 648 1037 UUNET Technologies, Inc.
701 611 2052 UUNET Technologies, Inc.
7046 455 823 UUNET Technologies, Inc.
3908 453 874 Supernet, Inc.
690 432 493 Merit Network
7066 381 473 Virginia Polytechnic Institut
7018 327 1277 AT&T
209 276 587 Qwest
7843 266 455 Adelphia Corp.
6197 247 347 BellSouth Network Solutions,
7029 246 261 Alltel Information Services,
11371 245 292 Rhythms NetConnections
1 242 811 BBN Planet
3301 236 394 TeliaNet Sweden
6198 228 304 BellSouth Network Solutions,
3549 227 529 Global Crossing
6517 219 241 Yipes Communications, Inc.
1239 213 823 Sprint
1580 203 215 HQ, 5th Signal Command
3215 199 264 France Telecom / &Equant
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:2 4:2 9:1 12:498 13:10 15:2
17:7 20:2 24:758 25:1 32:67 38:8
40:6 44:1 57:13 61:201 62:199 63:2107
64:1217 65:1278 66:882 67:68 68:9 80:239
81:17 98:1 128:58 129:133 130:23 131:47
132:12 133:3 134:121 135:9 136:314 137:93
138:149 139:49 140:186 141:119 142:80 143:38
144:149 145:12 146:225 147:136 148:163 149:93
150:41 151:60 152:308 153:33 154:3 155:99
156:76 157:127 158:69 159:130 160:24 161:56
162:151 163:103 164:269 165:130 166:224 167:170
168:122 169:54 170:305 171:2 192:5464 193:2312
194:2126 195:827 196:439 198:3747 199:3211 200:2417
202:3158 203:4519 204:3277 205:2166 206:2562 207:2651
208:2609 209:2722 210:654 211:212 212:870 213:596
214:9 215:18 216:3008 217:459 218:20
End of report
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