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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 Sat 23 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 110037
Prefixes after maximum aggregation: 72251
Unique aggregates announced to Internet: 51729
Total ASes present in the Internet Routing Table: 12790
Origin-only ASes present in the Internet Routing Table: 11074
Origin ASes announcing only one prefix: 4847
Transit ASes present in the Internet Routing Table: 1716
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: 1175099752
Equivalent to 70 /8s, 10 /16s and 153 /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: 73676
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18101
Total APNIC prefixes after maximum aggregation: 10685
Prefixes being announced from the APNIC address blocks: 16628
Unique aggregates announced from the APNIC address blocks: 10031
APNIC Region origin ASes present in the Internet Routing Table: 1466
APNIC Region origin ASes announcing only one prefix: 475
APNIC Region transit ASes present in the Internet Routing Table: 257
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 82122048
Equivalent to 4 /8s, 229 /16s and 21 /24s
Percentage of available APNIC address space announced: 60.7
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: 73499
Total ARIN prefixes after maximum aggregation: 47396
Prefixes being announced from the ARIN address blocks: 51923
Unique aggregates announced from the ARIN address blocks: 16382
ARIN Region origin ASes present in the Internet Routing Table: 7570
ARIN Region origin ASes announcing only one prefix: 2382
ARIN Region transit ASes present in the Internet Routing Table: 765
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 190288324
Equivalent to 11 /8s, 87 /16s and 145 /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: 18433
Total RIPE prefixes after maximum aggregation: 14170
Prefixes being announced from the RIPE address blocks: 15159
Unique aggregates announced from the RIPE address blocks: 9477
RIPE Region origin ASes present in the Internet Routing Table: 3698
RIPE Region origin ASes announcing only one prefix: 1990
RIPE Region transit ASes present in the Internet Routing Table: 680
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 113917984
Equivalent to 6 /8s, 202 /16s and 64 /24s
Percentage of available RIPE address space announced: 75.4
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 1213 952 Telstra Pty Ltd
4538 462 1194 17 China Education and Research
703 408 335 318 UUNET Technologies, Inc.
2907 405 1894 370 SINET Japan
2764 385 361 361 connect.com.au pty ltd
9394 317 113 4 CHINA RAILWAY Internet(CRNET)
7474 302 289 206 Optus Communications Pty Ltd
4755 293 113 85 Videsh Sanchar Nigam Ltd. Aut
4134 274 1978 96 Data Communications Bureau
9443 266 43 60 Primus Telecommunications
17557 253 16 97 Pakistan Telecom
4766 206 1516 146 Korea Internet Exchange for "
4804 165 84 68 Microplex PTY LTD
7539 164 239 158 TANet2, sponsored by NSC, TAI
9583 149 32 5 Satyam Infoway Ltd.,
9768 138 385 82 Korea Telecom
7657 122 22 85 The Internet Group Limited
4713 120 891 104 NTT Communications Corporatio
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 1025 2597 841 UUNET Technologies, Inc.
3301 394 924 349 TeliaNet Sweden
3215 266 586 158 France Telecom / &Equant
5515 261 696 167 Sonera Finland Autonomous Sys
680 232 2149 231 DFN-IP service G-WiN
1257 222 464 218 SWIPnet Swedish IP Network
5400 199 84 94 Concert European Core Network
3320 197 1964 172 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 157 23 145 Romania Data Systems S.A.
2856 129 788 118 BTnet UK Regional network
12302 125 8 46 MobiFon S.A.
3303 124 565 123 Swisscom Ltd
8297 122 4133 65 Teleglobe Autonomous System i
3269 117 694 71 TELECOM ITALIA
517 103 226 99 KPNQwest Germany GmbH
9051 101 6 25 INCONET Autonomous System
5511 100 194 89 France Telecom
2874 97 100 37 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2114 8384 1499 UUNET Technologies, Inc.
7018 1231 7529 916 AT&T
3908 845 1675 477 Supernet, Inc.
1239 812 3369 636 Sprint
1 806 8123 604 BBN Planet
852 673 5204 412 Telus Advanced Communications
4323 625 436 253 Time Warner Communications, I
7046 597 833 384 UUNET Technologies, Inc.
209 555 1992 319 Qwest
7132 518 545 158 Southwestern Bell Internet Se
3549 501 845 257 Global Crossing
690 462 69 305 Merit Network
2914 414 2169 410 Verio, Inc.
7843 399 314 49 Adelphia Corp.
705 380 116 272 UUNET Technologies, Inc.
2149 377 209 314 Performance Systems, Inc.
3741 343 731 233 The Internet Solution
6197 330 217 171 BellSouth Network Solutions,
3561 318 2151 285 Cable & Wireless USA
7066 318 203 251 Virginia Polytechnic Institut
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 845 368 Supernet, Inc.
7132 518 360 Southwestern Bell Internet Se
7843 399 350 Adelphia Corp.
1221 1289 337 Telstra Pty Ltd
7018 1231 315 AT&T
9394 317 313 CHINA RAILWAY Internet(CRNET)
4151 308 292 USDA
6198 310 279 BellSouth Network Solutions,
11371 277 271 Rhythms NetConnections
852 673 261 Telus Advanced Communications
3549 501 244 Global Crossing
6347 316 238 SAVVIS Communications Corpora
209 555 236 Qwest
7029 245 230 Alltel Information Services,
7046 597 213 UUNET Technologies, Inc.
4755 293 208 Videsh Sanchar Nigam Ltd. Aut
9443 266 206 Primus Telecommunications
4355 242 205 EarthLink, Inc.
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 /8:20 /9:5 /10:8 /11:14 /12:35
/13:88 /14:229 /15:404 /16:7191 /17:1392 /18:2556
/19:7419 /20:6933 /21:4930 /22:7530 /23:9153 /24:61165
/25:222 /26:259 /27:115 /28:94 /29:102 /30:133
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1377 2114 UUNET Technologies, Inc.
1221 1147 1289 Telstra Pty Ltd
702 650 1025 UUNET Technologies, Inc.
7018 645 1231 AT&T
3908 577 845 Supernet, Inc.
4323 495 625 Time Warner Communications, I
1239 470 812 Sprint
690 457 462 Merit Network
852 425 673 Telus Advanced Communications
7046 412 597 UUNET Technologies, Inc.
1 403 806 BBN Planet
209 365 555 Qwest
3549 362 501 Global Crossing
2764 341 385 connect.com.au pty ltd
703 329 408 UUNET Technologies, Inc.
705 326 380 UUNET Technologies, Inc.
9394 303 317 CHINA RAILWAY Internet(CRNET)
7066 289 318 Virginia Polytechnic Institut
2149 286 377 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 24:743 25:1 32:68 38:9 40:6
44:1 57:14 61:300 62:168 63:1897 64:1180
65:1097 66:811 67:53 68:3 80:222 81:6
128:64 129:132 130:23 131:57 132:10 133:3
134:127 135:10 136:283 137:102 138:148 139:49
140:187 141:90 142:84 143:38 144:145 145:11
146:220 147:147 148:136 149:92 150:39 151:50
152:326 153:33 154:5 155:90 156:75 157:119
158:72 159:125 160:26 161:55 162:138 163:104
164:121 165:123 166:223 167:193 168:90 169:51
170:292 171:2 192:5441 193:2211 194:2096 195:798
196:428 198:3736 199:3202 200:2413 201:1 202:3077
203:4545 204:3275 205:2145 206:2497 207:2605 208:2573
209:2779 210:579 211:204 212:860 213:594 214:9
215:18 216:3016 217:460 218:14
End of report
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