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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 Sat 04 May, 2002
Analysis Summary
----------------
BGP routing table entries examined: 111910
Prefixes after maximum aggregation: 72929
Unique aggregates announced to Internet: 52944
Total ASes present in the Internet Routing Table: 13032
Origin-only ASes present in the Internet Routing Table: 11305
Origin ASes announcing only one prefix: 4965
Transit ASes present in the Internet Routing Table: 1727
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: 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: 43
Number of addresses announced to Internet: 1190231356
Equivalent to 70 /8s, 241 /16s and 125 /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: 45085
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18132
Total APNIC prefixes after maximum aggregation: 10904
Prefixes being announced from the APNIC address blocks: 16637
Unique aggregates announced from the APNIC address blocks: 10276
APNIC Region origin ASes present in the Internet Routing Table: 1503
APNIC Region origin ASes announcing only one prefix: 493
APNIC Region transit ASes present in the Internet Routing Table: 269
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 84381504
Equivalent to 5 /8s, 7 /16s and 143 /24s
Percentage of available APNIC address space announced: 62.4
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: 74993
Total ARIN prefixes after maximum aggregation: 47716
Prefixes being announced from the ARIN address blocks: 53066
Unique aggregates announced from the ARIN address blocks: 16503
ARIN Region origin ASes present in the Internet Routing Table: 7698
ARIN Region origin ASes announcing only one prefix: 2431
ARIN Region transit ASes present in the Internet Routing Table: 750
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192583364
Equivalent to 11 /8s, 122 /16s and 150 /24s
Percentage of available ARIN address space announced: 71.7
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: 18785
Total RIPE prefixes after maximum aggregation: 14309
Prefixes being announced from the RIPE address blocks: 15475
Unique aggregates announced from the RIPE address blocks: 10330
RIPE Region origin ASes present in the Internet Routing Table: 3782
RIPE Region origin ASes announcing only one prefix: 2041
RIPE Region transit ASes present in the Internet Routing Table: 692
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 108947248
Equivalent to 6 /8s, 126 /16s and 103 /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 1277 1210 941 Telstra Pty Ltd
4538 477 1194 17 China Education and Research
2907 434 1878 371 SINET Japan
703 408 336 326 UUNET Technologies, Inc.
2764 395 360 362 connect.com.au pty ltd
7474 307 291 209 Optus Communications Pty Ltd
4134 279 2034 96 Data Communications Bureau
9443 274 44 63 Primus Telecommunications
17557 269 18 108 Pakistan Telecom
4755 247 109 74 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 165 238 159 TANet2, sponsored by NSC, TAI
9768 146 386 80 Korea Telecom
7657 126 22 89 The Internet Group Limited
4814 125 64 5 China Telecom (Group) - Beiji
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 1033 2580 848 UUNET Technologies, Inc.
3301 392 924 344 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 230 1947 177 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
8708 143 22 137 Romania Data Systems S.A.
719 136 270 96 LANLINK autonomous system
12302 130 9 49 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
8297 120 53 65 Teleglobe Autonomous System i
3269 116 694 71 TELECOM ITALIA
3303 116 546 115 Swisscom Ltd
5511 107 191 94 France Telecom
5536 107 9 39 Internet Egypt Network
2118 106 109 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 2055 8409 1469 UUNET Technologies, Inc.
7018 1280 7524 934 AT&T
3908 875 1661 487 Supernet, Inc.
1239 848 3391 669 Sprint
1 812 8187 455 BBN Planet
7046 795 876 571 UUNET Technologies, Inc.
852 669 1148 424 Telus Advanced Communications
4323 632 436 256 Time Warner Communications, I
209 588 1984 323 Qwest
7132 569 604 140 Southwestern Bell Internet Se
3549 519 856 323 Global Crossing
690 493 71 312 Merit Network
7066 472 202 248 Virginia Polytechnic Institut
7843 456 349 48 Adelphia Corp.
2914 419 2145 406 Verio, Inc.
705 378 4195 268 UUNET Technologies, Inc.
2149 347 191 289 Performance Systems, Inc.
6197 347 342 135 BellSouth Network Solutions,
3741 344 731 236 The Internet Solution
6347 336 370 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 456 408 Adelphia Corp.
3908 875 388 Supernet, Inc.
4323 632 376 Time Warner Communications, I
1 812 357 BBN Planet
7018 1280 346 AT&T
1221 1277 336 Telstra Pty Ltd
4151 304 288 USDA
11371 292 286 Rhythms NetConnections
209 588 265 Qwest
6347 336 255 SAVVIS Communications Corpora
7029 262 247 Alltel Information Services,
852 669 245 Telus Advanced Communications
7046 795 224 UUNET Technologies, Inc.
7066 472 224 Virginia Polytechnic Institut
4355 259 223 EarthLink, Inc.
6197 347 212 BellSouth Network Solutions,
9443 274 211 Primus Telecommunications
6517 244 210 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
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 /8:21 /9:8 /10:7 /11:13 /12:32
/13:85 /14:231 /15:404 /16:7192 /17:1427 /18:2605
/19:7490 /20:7072 /21:5025 /22:7728 /23:9371 /24:62420
/25:224 /26:195 /27:86 /28:92 /29:53 /30:90
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 646 1033 UUNET Technologies, Inc.
701 614 2055 UUNET Technologies, Inc.
3908 454 875 Supernet, Inc.
690 432 493 Merit Network
7046 423 795 UUNET Technologies, Inc.
7066 380 472 Virginia Polytechnic Institut
7018 331 1280 AT&T
209 277 588 Qwest
7843 267 456 Adelphia Corp.
6197 247 347 BellSouth Network Solutions,
7029 247 262 Alltel Information Services,
11371 245 292 Rhythms NetConnections
1 244 812 BBN Planet
1239 237 848 Sprint
3301 236 392 TeliaNet Sweden
6198 228 304 BellSouth Network Solutions,
6517 222 244 Yipes Communications, Inc.
3549 217 519 Global Crossing
1580 202 214 HQ, 5th Signal Command
3215 200 265 France Telecom / &Equant
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 9:1 12:499 13:10 15:2
17:7 20:2 24:760 25:1 32:67 38:8
40:6 44:1 57:13 61:200 62:197 63:2073
64:1213 65:1286 66:898 67:68 68:9 80:242
81:17 128:59 129:133 130:23 131:47 132:13
133:3 134:121 135:9 136:311 137:93 138:149
139:49 140:186 141:119 142:80 143:38 144:149
145:12 146:225 147:135 148:163 149:92 150:41
151:60 152:308 153:33 154:9 155:99 156:76
157:128 158:69 159:130 160:24 161:56 162:151
163:102 164:272 165:124 166:224 167:170 168:122
169:54 170:303 171:2 192:5445 193:2304 194:2125
195:823 196:438 198:3746 199:3218 200:2440 202:3156
203:4533 204:3283 205:2161 206:2565 207:2650 208:2601
209:2717 210:662 211:212 212:872 213:598 214:9
215:18 216:3013 217:461 218:20
End of report
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