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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 Tue 26 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 110095
Prefixes after maximum aggregation: 72174
Unique aggregates announced to Internet: 52336
Total ASes present in the Internet Routing Table: 12810
Origin-only ASes present in the Internet Routing Table: 11083
Origin ASes announcing only one prefix: 4852
Transit ASes present in the Internet Routing Table: 1727
Transit-only ASes present in the Internet Routing Table: 55
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 14
Number of addresses announced to Internet: 1168919912
Equivalent to 69 /8s, 172 /16s and 77 /24s
Percentage of available address space announced: 31.5
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73735
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18189
Total APNIC prefixes after maximum aggregation: 10680
Prefixes being announced from the APNIC address blocks: 16678
Unique aggregates announced from the APNIC address blocks: 10070
APNIC Region origin ASes present in the Internet Routing Table: 1469
APNIC Region origin ASes announcing only one prefix: 478
APNIC Region transit ASes present in the Internet Routing Table: 259
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 82223424
Equivalent to 4 /8s, 230 /16s and 161 /24s
Percentage of available APNIC address space announced: 60.8
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: 73424
Total ARIN prefixes after maximum aggregation: 47310
Prefixes being announced from the ARIN address blocks: 51861
Unique aggregates announced from the ARIN address blocks: 16339
ARIN Region origin ASes present in the Internet Routing Table: 7585
ARIN Region origin ASes announcing only one prefix: 2382
ARIN Region transit ASes present in the Internet Routing Table: 775
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 190255044
Equivalent to 11 /8s, 87 /16s and 15 /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: 18478
Total RIPE prefixes after maximum aggregation: 14184
Prefixes being announced from the RIPE address blocks: 15205
Unique aggregates announced from the RIPE address blocks: 10098
RIPE Region origin ASes present in the Internet Routing Table: 3700
RIPE Region origin ASes announcing only one prefix: 1992
RIPE Region transit ASes present in the Internet Routing Table: 679
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 108049696
Equivalent to 6 /8s, 112 /16s and 181 /24s
Percentage of available RIPE address space announced: 71.6
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 1279 1210 944 Telstra Pty Ltd
4538 462 1194 17 China Education and Research
2907 438 1895 371 SINET Japan
703 412 336 320 UUNET Technologies, Inc.
2764 386 361 361 connect.com.au pty ltd
9394 318 113 4 CHINA RAILWAY Internet(CRNET)
7474 305 290 209 Optus Communications Pty Ltd
4755 291 113 85 Videsh Sanchar Nigam Ltd. Aut
9443 276 44 64 Primus Telecommunications
4134 274 1978 96 Data Communications Bureau
17557 255 17 95 Pakistan Telecom
4766 208 1516 146 Korea Internet Exchange for "
7539 166 239 160 TANet2, sponsored by NSC, TAI
4804 165 84 68 Microplex PTY LTD
9583 148 32 5 Satyam Infoway Ltd.,
9768 138 385 82 Korea Telecom
4713 128 891 104 NTT Communications Corporatio
7657 122 22 85 The Internet Group Limited
17676 119 1904 12 XTAGE CORPORATION
4780 118 186 40 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1028 2597 842 UUNET Technologies, Inc.
3301 390 924 349 TeliaNet Sweden
3215 266 586 159 France Telecom / &Equant
5515 261 696 167 Sonera Finland Autonomous Sys
680 232 2149 231 DFN-IP service G-WiN
1257 224 464 220 SWIPnet Swedish IP Network
3320 224 1964 172 Deutsche Telekom AG
5400 199 84 94 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 158 23 146 Romania Data Systems S.A.
2856 130 788 119 BTnet UK Regional network
3303 124 565 123 Swisscom Ltd
12302 124 8 45 MobiFon S.A.
3269 117 694 71 TELECOM ITALIA
8297 115 53 67 Teleglobe Autonomous System i
517 103 226 99 KPNQwest Germany GmbH
5511 102 194 91 France Telecom
9051 101 6 25 INCONET Autonomous System
2874 97 100 37 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2086 8397 1455 UUNET Technologies, Inc.
7018 1227 7525 911 AT&T
3908 847 1675 478 Supernet, Inc.
1 813 8123 608 BBN Planet
1239 813 3369 637 Sprint
852 670 5188 412 Telus Advanced Communications
4323 625 436 253 Time Warner Communications, I
7046 605 834 393 UUNET Technologies, Inc.
209 553 1992 317 Qwest
7132 518 545 158 Southwestern Bell Internet Se
3549 505 845 260 Global Crossing
690 462 69 305 Merit Network
2914 413 2169 410 Verio, Inc.
7843 399 314 48 Adelphia Corp.
705 381 116 273 UUNET Technologies, Inc.
2149 372 224 310 Performance Systems, Inc.
3741 343 731 233 The Internet Solution
6197 330 217 171 BellSouth Network Solutions,
3561 323 2152 290 Cable & Wireless USA
6347 320 370 78 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 462 445 China Education and Research
4323 625 372 Time Warner Communications, I
3908 847 369 Supernet, Inc.
7132 518 360 Southwestern Bell Internet Se
7843 399 351 Adelphia Corp.
1221 1279 335 Telstra Pty Ltd
7018 1227 316 AT&T
9394 318 314 CHINA RAILWAY Internet(CRNET)
4151 307 291 USDA
6198 310 279 BellSouth Network Solutions,
11371 277 271 Rhythms NetConnections
852 670 258 Telus Advanced Communications
3549 505 245 Global Crossing
6347 320 242 SAVVIS Communications Corpora
209 553 236 Qwest
7029 247 232 Alltel Information Services,
7046 605 212 UUNET Technologies, Inc.
9443 276 212 Primus Telecommunications
4755 291 206 Videsh Sanchar Nigam Ltd. Aut
1 813 205 BBN Planet
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
112 UNALLOCATED 192.175.48.0/24 3557 Vixie Enterprises
65535 PRIVATE 198.93.230.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.93.231.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.94.168.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.94.169.0/24 3550 Ateneo de Manila Uni
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
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
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 /14:229 /15:403 /16:7184 /17:1394 /18:2565
/19:7424 /20:6933 /21:4952 /22:7523 /23:9151 /24:61192
/25:221 /26:260 /27:116 /28:101 /29:102 /30:136
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1348 2086 UUNET Technologies, Inc.
1221 1137 1279 Telstra Pty Ltd
702 652 1028 UUNET Technologies, Inc.
7018 646 1227 AT&T
3908 579 847 Supernet, Inc.
4323 494 625 Time Warner Communications, I
1239 470 813 Sprint
690 457 462 Merit Network
852 423 670 Telus Advanced Communications
7046 419 605 UUNET Technologies, Inc.
1 405 813 BBN Planet
3549 365 505 Global Crossing
209 363 553 Qwest
2764 342 386 connect.com.au pty ltd
703 332 412 UUNET Technologies, Inc.
705 328 381 UUNET Technologies, Inc.
9394 304 318 CHINA RAILWAY Internet(CRNET)
7066 289 318 Virginia Polytechnic Institut
2149 286 372 Performance Systems, Inc.
6197 279 330 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:479 13:10 15:2 17:5
20:2 24:739 25:1 32:68 38:8 40:6
44:1 57:14 61:304 62:163 63:1900 64:1178
65:1104 66:810 67:53 68:3 80:221 81:8
128:64 129:132 130:23 131:55 132:11 133:3
134:127 135:10 136:286 137:101 138:148 139:49
140:187 141:90 142:84 143:38 144:143 145:11
146:221 147:147 148:136 149:91 150:40 151:50
152:324 153:33 154:4 155:92 156:75 157:119
158:72 159:125 160:27 161:55 162:141 163:104
164:117 165:123 166:226 167:193 168:90 169:52
170:291 171:2 192:5443 193:2246 194:2096 195:793
196:427 198:3728 199:3193 200:2380 201:1 202:3098
203:4554 204:3262 205:2134 206:2484 207:2598 208:2569
209:2786 210:584 211:204 212:867 213:598 214:9
215:19 216:3040 217:464 218:22
End of report
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