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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 01 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109162
Prefixes after maximum aggregation: 72088
Unique aggregates announced to Internet: 51900
Total ASes present in the Internet Routing Table: 12652
Origin-only ASes present in the Internet Routing Table: 10956
Origin ASes announcing only one prefix: 4794
Transit ASes present in the Internet Routing Table: 1696
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: 1175073960
Equivalent to 70 /8s, 10 /16s and 52 /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: 72880
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17658
Total APNIC prefixes after maximum aggregation: 10645
Prefixes being announced from the APNIC address blocks: 16222
Unique aggregates announced from the APNIC address blocks: 9949
APNIC Region origin ASes present in the Internet Routing Table: 1455
APNIC Region origin ASes announcing only one prefix: 482
APNIC Region transit ASes present in the Internet Routing Table: 252
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 80243520
Equivalent to 4 /8s, 200 /16s and 107 /24s
Percentage of available APNIC address space announced: 59.3
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: 73219
Total ARIN prefixes after maximum aggregation: 47359
Prefixes being announced from the ARIN address blocks: 51753
Unique aggregates announced from the ARIN address blocks: 16268
ARIN Region origin ASes present in the Internet Routing Table: 7491
ARIN Region origin ASes announcing only one prefix: 2345
ARIN Region transit ASes present in the Internet Routing Table: 767
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 194654788
Equivalent to 11 /8s, 154 /16s and 50 /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: 18281
Total RIPE prefixes after maximum aggregation: 14084
Prefixes being announced from the RIPE address blocks: 15010
Unique aggregates announced from the RIPE address blocks: 10012
RIPE Region origin ASes present in the Internet Routing Table: 3650
RIPE Region origin ASes announcing only one prefix: 1967
RIPE Region transit ASes present in the Internet Routing Table: 661
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107115936
Equivalent to 6 /8s, 98 /16s and 117 /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 1301 1229 959 Telstra Pty Ltd
4538 456 1162 16 China Education and Research
2907 408 1975 371 SINET Japan
703 397 353 307 UUNET Technologies, Inc.
2764 385 360 361 connect.com.au pty ltd
7474 299 289 203 Optus Communications Pty Ltd
4755 295 111 85 Videsh Sanchar Nigam Ltd. Aut
4134 270 1874 98 Data Communications Bureau
9394 256 112 3 CHINA RAILWAY Internet(CRNET)
17557 231 15 101 Pakistan Telecom
4766 211 1393 147 Korea Internet Exchange for "
9443 163 44 62 Primus Telecommunications
4804 148 84 68 Microplex PTY LTD
9768 147 385 89 Korea Telecom
9583 141 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 1058 2617 853 UUNET Technologies, Inc.
3301 395 924 349 TeliaNet Sweden
3215 260 570 157 France Telecom / &Equant
1257 244 487 240 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5515 217 713 174 Sonera Finland Autonomous Sys
5400 201 82 93 Concert European Core Network
3320 195 1964 171 Deutsche Telekom AG
786 180 1858 180 The JANET IP Service
719 164 289 119 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
5511 89 192 78 France Telecom
5536 89 13 25 Internet Egypt Network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2176 8485 1519 UUNET Technologies, Inc.
7018 1204 7492 905 AT&T
3908 851 1661 480 Supernet, Inc.
1 828 8104 602 BBN Planet
1239 800 3364 623 Sprint
4323 643 435 256 Time Warner Communications, I
7046 637 853 420 UUNET Technologies, Inc.
852 617 1119 408 Telus Advanced Communications
209 534 2006 312 Qwest
3549 478 844 242 Global Crossing
7132 456 511 165 Southwestern Bell Internet Se
2914 447 2144 414 Verio, Inc.
690 439 67 285 Merit Network
7843 382 302 48 Adelphia Corp.
705 378 117 268 UUNET Technologies, Inc.
2149 369 208 307 Performance Systems, Inc.
3741 344 731 235 The Internet Solution
3561 335 2172 300 Cable & Wireless USA
2386 333 355 190 AT&T Data Communications Serv
6197 325 214 165 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 456 440 China Education and Research
4323 643 387 Time Warner Communications, I
3908 851 371 Supernet, Inc.
1221 1301 342 Telstra Pty Ltd
7843 382 334 Adelphia Corp.
7018 1204 299 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
3549 478 236 Global Crossing
7029 244 229 Alltel Information Services,
1 828 226 BBN Planet
209 534 222 Qwest
7046 637 217 UUNET Technologies, Inc.
4755 295 210 Videsh Sanchar Nigam Ltd. Aut
852 617 209 Telus Advanced Communications
702 1058 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 /16:7175 /17:1437 /18:2571
/19:7406 /20:6828 /21:4834 /22:7374 /23:9036 /24:60737
/25:216 /26:256 /27:123 /28:91 /29:93 /30:127
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1412 2176 UUNET Technologies, Inc.
1221 1157 1301 Telstra Pty Ltd
702 682 1058 UUNET Technologies, Inc.
7018 625 1204 AT&T
3908 590 851 Supernet, Inc.
4323 514 643 Time Warner Communications, I
1239 464 800 Sprint
7046 450 637 UUNET Technologies, Inc.
690 435 439 Merit Network
1 433 828 BBN Planet
852 374 617 Telus Advanced Communications
209 350 534 Qwest
2764 341 385 connect.com.au pty ltd
3549 340 478 Global Crossing
703 322 397 UUNET Technologies, Inc.
705 322 378 UUNET Technologies, Inc.
2149 278 369 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 12:491 13:10 15:1 17:5
20:2 24:765 25:1 32:68 38:9 40:6
44:1 57:15 61:234 62:172 63:1881 64:1128
65:1049 66:735 67:51 68:7 80:209 81:4
128:62 129:123 130:23 131:56 132:11 133:3
134:125 135:10 136:250 137:101 138:144 139:47
140:177 141:61 142:82 143:37 144:151 145:16
146:212 147:163 148:149 149:91 150:41 151:45
152:346 153:31 154:7 155:87 156:75 157:120
158:79 159:116 160:23 161:55 162:140 163:117
164:92 165:114 166:223 167:183 168:119 169:49
170:271 171:2 189:1 192:5426 193:2195 194:2085
195:787 196:432 198:3721 199:3234 200:2358 201:1
202:3025 203:4528 204:3318 205:2165 206:2533 207:2620
208:2566 209:2792 210:545 211:196 212:892 213:571
214:9 215:18 216:2961 217:462 218:21
End of report
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