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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 21 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 110060
Prefixes after maximum aggregation: 72397
Unique aggregates announced to Internet: 53239
Total ASes present in the Internet Routing Table: 12786
Origin-only ASes present in the Internet Routing Table: 11068
Origin ASes announcing only one prefix: 4843
Transit ASes present in the Internet Routing Table: 1718
Transit-only ASes present in the Internet Routing Table: 54
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 2
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: 1161712040
Equivalent to 69 /8s, 62 /16s and 81 /24s
Percentage of available address space announced: 31.3
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73711
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18030
Total APNIC prefixes after maximum aggregation: 10691
Prefixes being announced from the APNIC address blocks: 16552
Unique aggregates announced from the APNIC address blocks: 10046
APNIC Region origin ASes present in the Internet Routing Table: 1472
APNIC Region origin ASes announcing only one prefix: 482
APNIC Region transit ASes present in the Internet Routing Table: 258
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 82001984
Equivalent to 4 /8s, 227 /16s and 64 /24s
Percentage of available APNIC address space announced: 60.6
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: 73576
Total ARIN prefixes after maximum aggregation: 47523
Prefixes being announced from the ARIN address blocks: 51962
Unique aggregates announced from the ARIN address blocks: 17361
ARIN Region origin ASes present in the Internet Routing Table: 7567
ARIN Region origin ASes announcing only one prefix: 2366
ARIN Region transit ASes present in the Internet Routing Table: 765
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 183202244
Equivalent to 10 /8s, 235 /16s and 113 /24s
Percentage of available ARIN address space announced: 68.2
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: 18454
Total RIPE prefixes after maximum aggregation: 14183
Prefixes being announced from the RIPE address blocks: 15171
Unique aggregates announced from the RIPE address blocks: 10068
RIPE Region origin ASes present in the Internet Routing Table: 3692
RIPE Region origin ASes announcing only one prefix: 1995
RIPE Region transit ASes present in the Internet Routing Table: 681
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 107714848
Equivalent to 6 /8s, 107 /16s and 153 /24s
Percentage of available RIPE address space announced: 71.3
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 1289 1229 952 Telstra Pty Ltd
4538 461 1194 17 China Education and Research
703 408 334 316 UUNET Technologies, Inc.
2907 406 1894 372 SINET Japan
2764 383 361 359 connect.com.au pty ltd
7474 300 289 204 Optus Communications Pty Ltd
4755 291 111 84 Videsh Sanchar Nigam Ltd. Aut
4134 275 1962 97 Data Communications Bureau
9443 274 44 63 Primus Telecommunications
9394 258 113 4 CHINA RAILWAY Internet(CRNET)
17557 246 16 97 Pakistan Telecom
4766 208 1516 146 Korea Internet Exchange for "
4804 165 84 68 Microplex PTY LTD
7539 163 239 156 TANet2, sponsored by NSC, TAI
9583 147 32 5 Satyam Infoway Ltd.,
9768 138 385 83 Korea Telecom
4713 122 923 106 NTT Communications Corporatio
7657 122 22 85 The Internet Group Limited
4780 118 186 40 Digital United Inc.
17676 118 1888 16 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1032 2597 844 UUNET Technologies, Inc.
3301 394 924 349 TeliaNet Sweden
5515 274 697 173 Sonera Finland Autonomous Sys
3215 263 570 157 France Telecom / &Equant
680 232 2149 231 DFN-IP service G-WiN
1257 224 464 220 SWIPnet Swedish IP Network
5400 199 85 94 Concert European Core Network
3320 198 1964 173 Deutsche Telekom AG
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 129 788 118 BTnet UK Regional network
3303 124 579 124 Swisscom Ltd
12302 124 8 45 MobiFon S.A.
8297 118 37 66 Teleglobe Autonomous System i
3269 117 694 71 TELECOM ITALIA
517 102 226 98 KPNQwest Germany GmbH
5511 101 193 89 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 2117 8337 1498 UUNET Technologies, Inc.
7018 1224 7513 913 AT&T
3908 843 1675 481 Supernet, Inc.
1 815 8124 610 BBN Planet
1239 804 3368 629 Sprint
4323 635 436 253 Time Warner Communications, I
852 629 1127 413 Telus Advanced Communications
7046 602 833 395 UUNET Technologies, Inc.
209 553 1992 318 Qwest
7132 518 545 158 Southwestern Bell Internet Se
3549 496 844 251 Global Crossing
690 460 68 304 Merit Network
2914 413 2169 410 Verio, Inc.
7843 392 313 50 Adelphia Corp.
705 382 116 274 UUNET Technologies, Inc.
2149 378 209 315 Performance Systems, Inc.
3741 343 731 233 The Internet Solution
6197 326 215 168 BellSouth Network Solutions,
6347 320 370 82 SAVVIS Communications Corpora
3561 317 2149 284 Cable & Wireless USA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 461 444 China Education and Research
4323 635 382 Time Warner Communications, I
3908 843 362 Supernet, Inc.
7132 518 360 Southwestern Bell Internet Se
7843 392 342 Adelphia Corp.
1221 1289 337 Telstra Pty Ltd
7018 1224 311 AT&T
4151 306 290 USDA
6198 308 277 BellSouth Network Solutions,
11371 277 271 Rhythms NetConnections
9394 258 254 CHINA RAILWAY Internet(CRNET)
3549 496 245 Global Crossing
6347 320 238 SAVVIS Communications Corpora
209 553 235 Qwest
7029 245 230 Alltel Information Services,
852 629 216 Telus Advanced Communications
9443 274 211 Primus Telecommunications
7046 602 207 UUNET Technologies, Inc.
4755 291 207 Videsh Sanchar Nigam Ltd. Aut
1 815 205 BBN Planet
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
112 UNALLOCATED 192.175.48.0/24 3557 Vixie Enterprises
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 /8:18 /9:5 /10:8 /11:14 /12:35
/13:89 /14:229 /15:404 /16:7184 /17:1392 /18:2556
/19:7421 /20:6929 /21:4912 /22:7519 /23:9162 /24:61261
/25:221 /26:237 /27:105 /28:90 /29:96 /30:131
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1382 2117 UUNET Technologies, Inc.
1221 1146 1289 Telstra Pty Ltd
702 656 1032 UUNET Technologies, Inc.
7018 641 1224 AT&T
3908 575 843 Supernet, Inc.
4323 505 635 Time Warner Communications, I
1239 462 804 Sprint
690 455 460 Merit Network
7046 416 602 UUNET Technologies, Inc.
1 405 815 BBN Planet
852 382 629 Telus Advanced Communications
209 366 553 Qwest
3549 358 496 Global Crossing
2764 339 383 connect.com.au pty ltd
703 329 408 UUNET Technologies, Inc.
705 329 382 UUNET Technologies, Inc.
2149 287 378 Performance Systems, Inc.
6197 275 326 BellSouth Network Solutions,
7066 272 301 Virginia Polytechnic Institut
11371 271 277 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:490 13:10 15:2 17:5
20:2 24:739 25:1 32:68 38:9 40:6
44:1 57:14 61:275 62:167 63:1896 64:1181
65:1084 66:819 67:53 80:212 81:7 128:64
129:130 130:23 131:56 132:11 133:3 134:127
135:10 136:281 137:102 138:148 139:49 140:188
141:90 142:84 143:37 144:145 145:12 146:220
147:157 148:135 149:92 150:41 151:50 152:352
153:33 154:8 155:90 156:76 157:118 158:73
159:125 160:26 161:55 162:139 163:106 164:100
165:124 166:223 167:191 168:90 169:51 170:290
171:2 192:5450 193:2227 194:2119 195:799 196:427
198:3729 199:3227 200:2386 201:1 202:3069 203:4568
204:3300 205:2135 206:2502 207:2649 208:2572 209:2786
210:570 211:202 212:861 213:593 214:9 215:15
216:3018 217:463 218:14
End of report
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