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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 08 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108465
Prefixes after maximum aggregation: 71831
Unique aggregates announced to Internet: 51988
Total ASes present in the Internet Routing Table: 12688
Origin-only ASes present in the Internet Routing Table: 11015
Origin ASes announcing only one prefix: 4814
Transit ASes present in the Internet Routing Table: 1673
Transit-only ASes present in the Internet Routing Table: 57
Average AS path length visible in the Internet Routing Table: 5.3
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: 15
Number of addresses announced to Internet: 1167376160
Equivalent to 69 /8s, 148 /16s and 191 /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: 72495
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17625
Total APNIC prefixes after maximum aggregation: 10459
Prefixes being announced from the APNIC address blocks: 16282
Unique aggregates announced from the APNIC address blocks: 9956
APNIC Region origin ASes present in the Internet Routing Table: 1451
APNIC Region origin ASes announcing only one prefix: 478
APNIC Region transit ASes present in the Internet Routing Table: 248
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 81375040
Equivalent to 4 /8s, 217 /16s and 175 /24s
Percentage of available APNIC address space announced: 60.2
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: 72500
Total ARIN prefixes after maximum aggregation: 47185
Prefixes being announced from the ARIN address blocks: 51486
Unique aggregates announced from the ARIN address blocks: 16300
ARIN Region origin ASes present in the Internet Routing Table: 7487
ARIN Region origin ASes announcing only one prefix: 2347
ARIN Region transit ASes present in the Internet Routing Table: 742
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 189946688
Equivalent to 11 /8s, 82 /16s and 91 /24s
Percentage of available ARIN address space announced: 70.8
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: 18338
Total RIPE prefixes after maximum aggregation: 14187
Prefixes being announced from the RIPE address blocks: 15076
Unique aggregates announced from the RIPE address blocks: 10030
RIPE Region origin ASes present in the Internet Routing Table: 3693
RIPE Region origin ASes announcing only one prefix: 1989
RIPE Region transit ASes present in the Internet Routing Table: 673
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107356192
Equivalent to 6 /8s, 102 /16s and 32 /24s
Percentage of available RIPE address space announced: 71.1
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 439 1162 16 China Education and Research
2907 408 1959 372 SINET Japan
703 404 349 314 UUNET Technologies, Inc.
2764 385 360 361 connect.com.au pty ltd
9394 298 112 3 CHINA RAILWAY Internet(CRNET)
7474 295 289 200 Optus Communications Pty Ltd
4755 281 111 84 Videsh Sanchar Nigam Ltd. Aut
4134 274 1962 97 Data Communications Bureau
9443 273 44 63 Primus Telecommunications
17557 235 15 99 Pakistan Telecom
4766 213 1521 147 Korea Internet Exchange for "
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 117 186 40 Digital United Inc.
17676 117 1872 17 XTAGE CORPORATION
9800 114 194 23 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1037 2628 850 UUNET Technologies, Inc.
3301 396 924 350 TeliaNet Sweden
3215 262 570 157 France Telecom / &Equant
1257 236 487 232 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5515 216 697 173 Sonera Finland Autonomous Sys
5400 200 83 94 Concert European Core Network
3320 196 1964 171 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
8708 159 23 147 Romania Data Systems S.A.
719 132 289 118 LANLINK autonomous system
2856 131 790 120 BTnet UK Regional network
3303 124 579 124 Swisscom Ltd
12302 117 7 38 MobiFon S.A.
3269 116 693 70 TELECOM ITALIA
8297 115 37 65 Teleglobe Autonomous System i
517 101 226 99 KPNQwest Germany GmbH
9051 101 6 25 INCONET Autonomous System
2874 96 100 36 Global One Services AB
5511 91 192 79 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2146 8439 1518 UUNET Technologies, Inc.
7018 1208 7495 910 AT&T
3908 851 1659 481 Supernet, Inc.
1 835 8122 609 BBN Planet
1239 792 3365 623 Sprint
4323 639 435 252 Time Warner Communications, I
852 631 1120 412 Telus Advanced Communications
7046 625 835 409 UUNET Technologies, Inc.
209 542 1976 312 Qwest
7132 514 541 157 Southwestern Bell Internet Se
3549 478 843 243 Global Crossing
690 435 66 282 Merit Network
2914 421 2176 417 Verio, Inc.
7843 379 305 50 Adelphia Corp.
2149 377 209 313 Performance Systems, Inc.
705 374 115 265 UUNET Technologies, Inc.
3741 344 731 235 The Internet Solution
2386 338 356 193 AT&T Data Communications Serv
6197 330 215 168 BellSouth Network Solutions,
3561 325 2169 292 Cable & Wireless USA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 439 423 China Education and Research
4323 639 387 Time Warner Communications, I
3908 851 370 Supernet, Inc.
7132 514 357 Southwestern Bell Internet Se
1221 1299 342 Telstra Pty Ltd
7843 379 329 Adelphia Corp.
7018 1208 298 AT&T
9394 298 295 CHINA RAILWAY Internet(CRNET)
4151 304 288 USDA
6198 309 276 BellSouth Network Solutions,
11371 270 264 Rhythms NetConnections
6347 315 237 SAVVIS Communications Corpora
3549 478 235 Global Crossing
209 542 230 Qwest
1 835 226 BBN Planet
7029 241 226 Alltel Information Services,
852 631 219 Telus Advanced Communications
7046 625 216 UUNET Technologies, Inc.
9443 273 210 Primus Telecommunications
4355 242 205 EarthLink, Inc.
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 65.171.130.0/24 701 UUNET Technologies,
23336 UNALLOCATED 65.222.19.0/24 701 UUNET Technologies,
23339 UNALLOCATED 66.181.32.0/20 701 UUNET Technologies,
65535 PRIVATE 66.219.64.0/19 14989 Broadview Networks
23336 UNALLOCATED 204.182.49.0/24 701 UUNET Technologies,
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
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 /11:14 /12:35
/13:88 /14:232 /15:404 /16:7147 /17:1374 /18:2526
/19:7366 /20:6859 /21:4847 /22:7391 /23:9064 /24:60322
/25:196 /26:253 /27:102 /28:64 /29:80 /30:55
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1382 2146 UUNET Technologies, Inc.
1221 1156 1299 Telstra Pty Ltd
702 658 1037 UUNET Technologies, Inc.
7018 629 1208 AT&T
3908 587 851 Supernet, Inc.
4323 510 639 Time Warner Communications, I
1239 454 792 Sprint
7046 441 625 UUNET Technologies, Inc.
1 433 835 BBN Planet
690 431 435 Merit Network
852 387 631 Telus Advanced Communications
209 356 542 Qwest
2764 341 385 connect.com.au pty ltd
3549 341 478 Global Crossing
703 325 404 UUNET Technologies, Inc.
705 321 374 UUNET Technologies, Inc.
2149 288 377 Performance Systems, Inc.
9394 286 298 CHINA RAILWAY Internet(CRNET)
6197 279 330 BellSouth Network Solutions,
7066 265 294 Virginia Polytechnic Institut
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:488 13:10 15:1 17:5
20:2 24:760 25:1 32:68 38:9 40:6
44:1 57:15 61:284 62:189 63:1883 64:1145
65:1069 66:810 67:52 68:5 80:213 81:5
128:63 129:111 130:23 131:55 132:11 133:3
134:103 135:10 136:174 137:102 138:147 139:48
140:149 141:62 142:67 143:37 144:152 145:12
146:210 147:164 148:127 149:91 150:41 151:48
152:344 153:33 154:7 155:88 156:75 157:119
158:73 159:118 160:23 161:55 162:139 163:111
164:85 165:118 166:222 167:186 168:120 169:49
170:288 171:2 189:1 192:5351 193:2205 194:2061
195:807 196:426 198:3632 199:3231 200:2362 201:1
202:2986 203:4527 204:3285 205:2161 206:2410 207:2598
208:2554 209:2788 210:531 211:194 212:881 213:582
214:9 215:18 216:2969 217:443 218:21
End of report
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