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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 Thu 28 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109071
Prefixes after maximum aggregation: 72110
Unique aggregates announced to Internet: 51894
Total ASes present in the Internet Routing Table: 12643
Origin-only ASes present in the Internet Routing Table: 10940
Origin ASes announcing only one prefix: 4787
Transit ASes present in the Internet Routing Table: 1703
Transit-only ASes present in the Internet Routing Table: 55
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: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 16
Number of addresses announced to Internet: 1174766248
Equivalent to 70 /8s, 5 /16s and 130 /24s
Percentage of available address space announced: 31.7
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 72790
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17627
Total APNIC prefixes after maximum aggregation: 10658
Prefixes being announced from the APNIC address blocks: 16179
Unique aggregates announced from the APNIC address blocks: 9922
APNIC Region origin ASes present in the Internet Routing Table: 1454
APNIC Region origin ASes announcing only one prefix: 482
APNIC Region transit ASes present in the Internet Routing Table: 256
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 80122688
Equivalent to 4 /8s, 198 /16s and 147 /24s
Percentage of available APNIC address space announced: 59.2
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: 73213
Total ARIN prefixes after maximum aggregation: 47383
Prefixes being announced from the ARIN address blocks: 51689
Unique aggregates announced from the ARIN address blocks: 16293
ARIN Region origin ASes present in the Internet Routing Table: 7483
ARIN Region origin ASes announcing only one prefix: 2332
ARIN Region transit ASes present in the Internet Routing Table: 767
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 194727492
Equivalent to 11 /8s, 155 /16s and 78 /24s
Percentage of available ARIN address space announced: 72.5
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
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: 18227
Total RIPE prefixes after maximum aggregation: 14069
Prefixes being announced from the RIPE address blocks: 14974
Unique aggregates announced from the RIPE address blocks: 9999
RIPE Region origin ASes present in the Internet Routing Table: 3650
RIPE Region origin ASes announcing only one prefix: 1973
RIPE Region transit ASes present in the Internet Routing Table: 664
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107099552
Equivalent to 6 /8s, 98 /16s and 53 /24s
Percentage of available RIPE address space announced: 70.9
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 1304 1245 961 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
2907 408 1975 371 SINET Japan
703 398 353 308 UUNET Technologies, Inc.
2764 385 360 361 connect.com.au pty ltd
7474 299 289 203 Optus Communications Pty Ltd
4755 293 111 87 Videsh Sanchar Nigam Ltd. Aut
4134 270 1874 98 Data Communications Bureau
9394 256 112 3 CHINA RAILWAY Internet(CRNET)
17557 230 15 100 Pakistan Telecom
4766 209 1392 151 Korea Internet Exchange for "
9443 164 44 62 Primus Telecommunications
9768 147 385 89 Korea Telecom
4804 144 84 68 Microplex PTY LTD
9583 136 32 5 Satyam Infoway Ltd.,
7539 135 215 132 TANet2, sponsored by NSC, TAI
4713 126 914 104 NTT Communications Corporatio
7657 122 22 85 The Internet Group Limited
4780 120 186 40 Digital United Inc.
17676 115 1840 17 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1059 2617 854 UUNET Technologies, Inc.
3301 397 924 351 TeliaNet Sweden
3215 260 570 157 France Telecom / &Equant
1257 241 487 237 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5515 217 713 174 Sonera Finland Autonomous Sys
5400 197 82 93 Concert European Core Network
3320 196 1964 172 Deutsche Telekom AG
786 181 1858 181 The JANET IP Service
719 165 305 120 LANLINK autonomous system
8708 162 22 147 Romania Data Systems S.A.
2856 131 790 120 BTnet UK Regional network
3303 123 577 123 Swisscom Ltd
12302 118 7 36 MobiFon S.A.
3269 117 693 71 TELECOM ITALIA
8297 115 40 64 Teleglobe Autonomous System i
517 100 226 98 KPNQwest Germany GmbH
2874 95 100 35 Global One Services AB
2830 89 210 70 UUNET Dual-Homed customers
5511 89 192 78 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2177 8482 1519 UUNET Technologies, Inc.
7018 1210 7493 909 AT&T
3908 844 1661 480 Supernet, Inc.
1 828 8104 602 BBN Planet
1239 807 3348 622 Sprint
7046 645 853 421 UUNET Technologies, Inc.
4323 642 435 256 Time Warner Communications, I
852 617 1119 408 Telus Advanced Communications
209 541 1974 311 Qwest
3549 466 843 238 Global Crossing
7132 456 511 165 Southwestern Bell Internet Se
2914 447 2176 415 Verio, Inc.
690 439 67 285 Merit Network
7843 380 300 48 Adelphia Corp.
705 378 117 268 UUNET Technologies, Inc.
2149 371 192 309 Performance Systems, Inc.
3741 343 730 234 The Internet Solution
577 336 587 220 Bell Advanced Communications
3561 335 2172 300 Cable & Wireless USA
2386 333 355 190 AT&T Data Communications Serv
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 454 438 China Education and Research
4323 642 386 Time Warner Communications, I
3908 844 364 Supernet, Inc.
1221 1304 343 Telstra Pty Ltd
7843 380 332 Adelphia Corp.
7018 1210 301 AT&T
7132 456 291 Southwestern Bell Internet Se
4151 306 290 USDA
6198 307 274 BellSouth Network Solutions,
11371 278 272 Rhythms NetConnections
9394 256 253 CHINA RAILWAY Internet(CRNET)
6347 315 237 SAVVIS Communications Corpora
209 541 230 Qwest
7029 244 229 Alltel Information Services,
3549 466 228 Global Crossing
1 828 226 BBN Planet
7046 645 224 UUNET Technologies, Inc.
852 617 209 Telus Advanced Communications
4755 293 206 Videsh Sanchar Nigam Ltd. Aut
702 1059 205 UUNET Technologies, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
23309 UNALLOCATED 209.79.154.0/23 2150 California State Uni
23309 UNALLOCATED 209.79.156.0/23 2150 California State Uni
23309 UNALLOCATED 209.132.144.0/24 2150 California State Uni
23309 UNALLOCATED 209.232.36.0/22 2150 California State Uni
65534 PRIVATE 209.242.165.32/27 195 San Diego Supercompu
65534 PRIVATE 209.242.166.0/26 195 San Diego Supercompu
65534 PRIVATE 209.242.166.72/29 195 San Diego Supercompu
65534 PRIVATE 209.242.166.80/28 195 San Diego Supercompu
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
96.0.0.0/20 3549 Global Crossing
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
144.7.0.0/16 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.235.0.0/16 6025 US DOD NIC Unregistered
172.192.0.0/14 1668 GNN Hosting Service
189.186.184.0/24 4471 Michigan Internet Cooperative
201.115.100.0/24 7018 AT&T
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 /10:8 /11:12 /12:37
/13:91 /14:237 /15:408 /16:7170 /17:1437 /18:2565
/19:7412 /20:6827 /21:4816 /22:7338 /23:8974 /24:60761
/25:215 /26:257 /27:123 /28:92 /29:94 /30:128
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1414 2177 UUNET Technologies, Inc.
1221 1159 1304 Telstra Pty Ltd
702 682 1059 UUNET Technologies, Inc.
7018 627 1210 AT&T
3908 587 844 Supernet, Inc.
4323 513 642 Time Warner Communications, I
1239 473 807 Sprint
7046 459 645 UUNET Technologies, Inc.
690 435 439 Merit Network
1 433 828 BBN Planet
852 374 617 Telus Advanced Communications
209 359 541 Qwest
2764 341 385 connect.com.au pty ltd
3549 331 466 Global Crossing
705 323 378 UUNET Technologies, Inc.
703 322 398 UUNET Technologies, Inc.
2149 281 371 Performance Systems, Inc.
6197 274 325 BellSouth Network Solutions,
7066 273 302 Virginia Polytechnic Institut
11371 272 278 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:490 13:10 15:1 17:5
20:2 24:778 25:1 32:68 38:9 40:6
44:1 57:14 61:234 62:179 63:1882 64:1138
65:1045 66:732 67:38 68:7 80:207 81:5
128:62 129:123 130:21 131:56 132:11 133:3
134:125 135:10 136:248 137:101 138:148 139:47
140:174 141:63 142:82 143:37 144:143 145:13
146:217 147:156 148:147 149:91 150:41 151:45
152:349 153:31 154:7 155:86 156:75 157:119
158:77 159:116 160:23 161:56 162:139 163:116
164:92 165:122 166:224 167:184 168:118 169:48
170:288 171:2 189:1 192:5426 193:2168 194:2090
195:789 196:444 198:3728 199:3247 200:2356 201:1
202:3008 203:4497 204:3329 205:2177 206:2528 207:2640
208:2569 209:2810 210:543 211:207 212:889 213:570
214:9 215:18 216:2953 217:453 218:21
End of report
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