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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 06 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109499
Prefixes after maximum aggregation: 72273
Unique aggregates announced to Internet: 52048
Total ASes present in the Internet Routing Table: 12707
Origin-only ASes present in the Internet Routing Table: 11017
Origin ASes announcing only one prefix: 4815
Transit ASes present in the Internet Routing Table: 1690
Transit-only ASes present in the Internet Routing Table: 57
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: 10
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 15
Number of addresses announced to Internet: 1166843688
Equivalent to 69 /8s, 140 /16s and 159 /24s
Percentage of available address space announced: 31.5
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73375
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17848
Total APNIC prefixes after maximum aggregation: 10663
Prefixes being announced from the APNIC address blocks: 16376
Unique aggregates announced from the APNIC address blocks: 9968
APNIC Region origin ASes present in the Internet Routing Table: 1454
APNIC Region origin ASes announcing only one prefix: 478
APNIC Region transit ASes present in the Internet Routing Table: 250
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 80546880
Equivalent to 4 /8s, 205 /16s and 12 /24s
Percentage of available APNIC address space announced: 59.5
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: 73265
Total ARIN prefixes after maximum aggregation: 47421
Prefixes being announced from the ARIN address blocks: 51798
Unique aggregates announced from the ARIN address blocks: 16315
ARIN Region origin ASes present in the Internet Routing Table: 7504
ARIN Region origin ASes announcing only one prefix: 2347
ARIN Region transit ASes present in the Internet Routing Table: 759
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 190195524
Equivalent to 11 /8s, 86 /16s and 39 /24s
Percentage of available ARIN address space announced: 70.9
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: 18382
Total RIPE prefixes after maximum aggregation: 14189
Prefixes being announced from the RIPE address blocks: 15119
Unique aggregates announced from the RIPE address blocks: 10022
RIPE Region origin ASes present in the Internet Routing Table: 3692
RIPE Region origin ASes announcing only one prefix: 1990
RIPE Region transit ASes present in the Internet Routing Table: 668
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107212832
Equivalent to 6 /8s, 99 /16s and 240 /24s
Percentage of available RIPE address space announced: 71.0
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 1299 1229 957 Telstra Pty Ltd
4538 462 1162 16 China Education and Research
2907 407 1959 371 SINET Japan
703 399 353 309 UUNET Technologies, Inc.
2764 385 360 361 connect.com.au pty ltd
7474 299 289 203 Optus Communications Pty Ltd
4755 295 111 87 Videsh Sanchar Nigam Ltd. Aut
4134 273 1882 95 Data Communications Bureau
9443 271 44 62 Primus Telecommunications
9394 264 112 3 CHINA RAILWAY Internet(CRNET)
17557 233 15 100 Pakistan Telecom
4766 212 1393 147 Korea Internet Exchange for "
7539 152 203 147 TANet2, sponsored by NSC, TAI
4804 148 84 68 Microplex PTY LTD
9768 147 385 89 Korea Telecom
9583 142 32 5 Satyam Infoway Ltd.,
4713 127 914 104 NTT Communications Corporatio
7657 122 22 85 The Internet Group Limited
4780 119 186 40 Digital United Inc.
17676 116 1856 18 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1065 2644 853 UUNET Technologies, Inc.
3301 397 924 351 TeliaNet Sweden
3215 260 570 156 France Telecom / &Equant
1257 239 487 235 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5515 216 697 173 Sonera Finland Autonomous Sys
5400 201 83 94 Concert European Core Network
3320 195 1964 171 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 163 23 148 Romania Data Systems S.A.
2856 131 790 120 BTnet UK Regional network
3303 123 577 123 Swisscom Ltd
12302 117 7 38 MobiFon S.A.
3269 116 693 70 TELECOM ITALIA
8297 115 37 65 Teleglobe Autonomous System i
9051 101 6 25 INCONET Autonomous System
517 99 226 97 KPNQwest Germany GmbH
2874 95 100 35 Global One Services AB
5511 90 192 78 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2169 8534 1521 UUNET Technologies, Inc.
7018 1207 7493 909 AT&T
3908 851 1675 482 Supernet, Inc.
1 833 8122 608 BBN Planet
1239 787 3364 621 Sprint
852 677 5205 409 Telus Advanced Communications
4323 644 435 255 Time Warner Communications, I
7046 625 835 410 UUNET Technologies, Inc.
209 536 1974 308 Qwest
3549 477 843 242 Global Crossing
7132 456 511 165 Southwestern Bell Internet Se
690 439 67 285 Merit Network
2914 426 2176 417 Verio, Inc.
7843 382 302 48 Adelphia Corp.
705 374 117 265 UUNET Technologies, Inc.
2149 364 192 302 Performance Systems, Inc.
3741 344 731 235 The Internet Solution
2386 338 356 193 AT&T Data Communications Serv
6197 329 215 168 BellSouth Network Solutions,
3561 327 2171 294 Cable & Wireless USA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 462 446 China Education and Research
4323 644 389 Time Warner Communications, I
3908 851 369 Supernet, Inc.
1221 1299 342 Telstra Pty Ltd
7843 382 334 Adelphia Corp.
7018 1207 298 AT&T
7132 456 291 Southwestern Bell Internet Se
4151 305 289 USDA
6198 309 276 BellSouth Network Solutions,
11371 278 272 Rhythms NetConnections
852 677 268 Telus Advanced Communications
9394 264 261 CHINA RAILWAY Internet(CRNET)
6347 315 237 SAVVIS Communications Corpora
3549 477 235 Global Crossing
209 536 228 Qwest
7029 242 227 Alltel Information Services,
1 833 225 BBN Planet
7046 625 215 UUNET Technologies, Inc.
702 1065 212 UUNET Technologies, Inc.
9443 271 209 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23336 UNALLOCATED 65.163.175.0/24 701 UUNET Technologies,
23336 UNALLOCATED 65.166.167.0/24 701 UUNET Technologies,
23336 UNALLOCATED 65.171.130.0/24 1239 Sprint
23336 UNALLOCATED 65.222.19.0/24 701 UUNET Technologies,
23339 UNALLOCATED 66.181.32.0/20 701 UUNET Technologies,
23336 UNALLOCATED 204.182.49.0/24 701 UUNET Technologies,
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
54600 RESERVED 212.113.101.0/24 2118 EUnet/RELCOM Autonom
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
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 /9:5 /10:8 /11:12 /12:34
/13:88 /14:232 /15:406 /16:7172 /17:1380 /18:2535
/19:7363 /20:6866 /21:4883 /22:7446 /23:9149 /24:60959
/25:215 /26:256 /27:120 /28:90 /29:93 /30:128
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1403 2169 UUNET Technologies, Inc.
1221 1155 1299 Telstra Pty Ltd
702 685 1065 UUNET Technologies, Inc.
7018 628 1207 AT&T
3908 588 851 Supernet, Inc.
4323 515 644 Time Warner Communications, I
1239 450 787 Sprint
7046 441 625 UUNET Technologies, Inc.
690 435 439 Merit Network
852 433 677 Telus Advanced Communications
1 432 833 BBN Planet
209 354 536 Qwest
2764 341 385 connect.com.au pty ltd
3549 341 477 Global Crossing
703 322 399 UUNET Technologies, Inc.
705 319 374 UUNET Technologies, Inc.
6197 278 329 BellSouth Network Solutions,
2149 276 364 Performance Systems, Inc.
7066 272 301 Virginia Polytechnic Institut
11371 272 278 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:488 13:10 15:1 17:5
20:2 24:758 25:1 32:68 38:9 40:6
44:1 57:15 61:241 62:188 63:1880 64:1149
65:1058 66:771 67:51 68:7 80:215 81:5
128:63 129:119 130:23 131:56 132:12 133:3
134:126 135:10 136:249 137:102 138:147 139:48
140:183 141:62 142:82 143:37 144:152 145:13
146:211 147:163 148:149 149:91 150:41 151:48
152:346 153:31 154:8 155:90 156:75 157:118
158:73 159:117 160:23 161:55 162:140 163:118
164:91 165:119 166:223 167:186 168:119 169:49
170:290 171:2 189:1 192:5425 193:2207 194:2093
195:795 196:434 198:3677 199:3239 200:2402 201:1
202:3038 203:4546 204:3333 205:2170 206:2514 207:2632
208:2552 209:2839 210:542 211:195 212:886 213:591
214:9 215:18 216:2959 217:446 218:21
End of report
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