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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 16 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109923
Prefixes after maximum aggregation: 72348
Unique aggregates announced to Internet: 53159
Total ASes present in the Internet Routing Table: 12761
Origin-only ASes present in the Internet Routing Table: 11037
Origin ASes announcing only one prefix: 4839
Transit ASes present in the Internet Routing Table: 1724
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: 57
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: 1161586344
Equivalent to 69 /8s, 60 /16s and 102 /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: 73584
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17973
Total APNIC prefixes after maximum aggregation: 10703
Prefixes being announced from the APNIC address blocks: 16488
Unique aggregates announced from the APNIC address blocks: 10007
APNIC Region origin ASes present in the Internet Routing Table: 1463
APNIC Region origin ASes announcing only one prefix: 481
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: 81729344
Equivalent to 4 /8s, 223 /16s and 23 /24s
Percentage of available APNIC address space announced: 60.4
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: 73518
Total ARIN prefixes after maximum aggregation: 47488
Prefixes being announced from the ARIN address blocks: 51961
Unique aggregates announced from the ARIN address blocks: 17335
ARIN Region origin ASes present in the Internet Routing Table: 7558
ARIN Region origin ASes announcing only one prefix: 2366
ARIN Region transit ASes present in the Internet Routing Table: 779
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 183069636
Equivalent to 10 /8s, 233 /16s and 107 /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: 18376
Total RIPE prefixes after maximum aggregation: 14157
Prefixes being announced from the RIPE address blocks: 15157
Unique aggregates announced from the RIPE address blocks: 10080
RIPE Region origin ASes present in the Internet Routing Table: 3683
RIPE Region origin ASes announcing only one prefix: 1992
RIPE Region transit ASes present in the Internet Routing Table: 673
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107551776
Equivalent to 6 /8s, 105 /16s and 28 /24s
Percentage of available RIPE address space announced: 71.2
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 1288 1228 950 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 407 334 316 UUNET Technologies, Inc.
2907 404 1926 370 SINET Japan
2764 385 361 361 connect.com.au pty ltd
7474 298 289 202 Optus Communications Pty Ltd
4755 297 111 83 Videsh Sanchar Nigam Ltd. Aut
4134 274 1962 97 Data Communications Bureau
9443 274 44 63 Primus Telecommunications
9394 254 113 4 CHINA RAILWAY Internet(CRNET)
17557 235 15 103 Pakistan Telecom
4766 211 1520 148 Korea Internet Exchange for "
7539 166 253 159 TANet2, sponsored by NSC, TAI
4804 165 84 68 Microplex PTY LTD
9583 149 32 5 Satyam Infoway Ltd.,
9768 137 385 82 Korea Telecom
4713 127 906 104 NTT Communications Corporatio
7657 123 22 86 The Internet Group Limited
4780 118 186 40 Digital United Inc.
17676 117 1872 17 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1032 2611 843 UUNET Technologies, Inc.
3301 394 924 349 TeliaNet Sweden
3215 262 570 157 France Telecom / &Equant
1257 236 486 232 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5515 216 697 171 Sonera Finland Autonomous Sys
3320 197 1964 172 Deutsche Telekom AG
5400 197 83 92 Concert European Core Network
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 130 788 119 BTnet UK Regional network
3303 124 579 124 Swisscom Ltd
12302 123 8 44 MobiFon S.A.
8297 118 37 66 Teleglobe Autonomous System i
3269 117 694 71 TELECOM ITALIA
517 102 227 100 KPNQwest Germany GmbH
9051 101 6 25 INCONET Autonomous System
2874 97 100 37 Global One Services AB
5511 90 192 79 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2131 8354 1501 UUNET Technologies, Inc.
7018 1220 7511 913 AT&T
3908 847 1675 481 Supernet, Inc.
1 841 8124 611 BBN Planet
1239 799 3367 626 Sprint
4323 641 436 254 Time Warner Communications, I
852 628 1128 413 Telus Advanced Communications
7046 621 835 406 UUNET Technologies, Inc.
209 555 1993 321 Qwest
7132 518 545 158 Southwestern Bell Internet Se
3549 484 843 243 Global Crossing
690 436 67 282 Merit Network
2914 422 2177 419 Verio, Inc.
7843 385 313 50 Adelphia Corp.
705 382 116 274 UUNET Technologies, Inc.
2149 367 224 306 Performance Systems, Inc.
3741 345 731 235 The Internet Solution
2386 330 371 188 AT&T Data Communications Serv
6197 326 215 168 BellSouth Network Solutions,
577 320 602 214 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 454 438 China Education and Research
4323 641 387 Time Warner Communications, I
3908 847 366 Supernet, Inc.
7132 518 360 Southwestern Bell Internet Se
1221 1288 338 Telstra Pty Ltd
7843 385 335 Adelphia Corp.
7018 1220 307 AT&T
4151 305 289 USDA
11371 280 274 Rhythms NetConnections
9394 254 250 CHINA RAILWAY Internet(CRNET)
3549 484 241 Global Crossing
6347 318 237 SAVVIS Communications Corpora
209 555 234 Qwest
1 841 230 BBN Planet
7029 245 230 Alltel Information Services,
6198 302 222 BellSouth Network Solutions,
852 628 215 Telus Advanced Communications
7046 621 215 UUNET Technologies, Inc.
4755 297 214 Videsh Sanchar Nigam Ltd. Aut
9443 274 211 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64581 PRIVATE 192.89.47.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.49.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.158.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.183.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.190.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.191.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.192.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.193.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.89.194.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.130.46.0/24 5515 Sonera Finland Auton
64553 PRIVATE 192.130.156.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.181.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.236.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.244.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.245.0/24 5515 Sonera Finland Auton
64581 PRIVATE 192.194.246.0/23 5515 Sonera Finland Auton
64581 PRIVATE 192.194.248.0/23 5515 Sonera Finland Auton
64581 PRIVATE 193.208.88.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.209.70.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.209.129.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.27.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.59.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.120.0/23 5515 Sonera Finland Auton
64581 PRIVATE 193.210.122.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.210.123.0/24 5515 Sonera Finland Auton
64558 PRIVATE 193.211.44.0/24 5515 Sonera Finland Auton
64581 PRIVATE 193.211.61.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.71.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.164.0/22 5515 Sonera Finland Auton
64581 PRIVATE 194.89.246.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.248.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.89.249.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.64.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.65.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.66.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.67.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.68.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.69.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.70.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.111.71.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.137.62.0/24 5515 Sonera Finland Auton
64558 PRIVATE 194.137.237.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.142.170.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.104.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.157.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.158.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.159.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.160.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.178.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.250.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.251.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.197.252.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.252.103.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.252.104.0/24 5515 Sonera Finland Auton
64581 PRIVATE 194.252.202.0/23 5515 Sonera Finland Auton
64581 PRIVATE 195.156.255.0/24 5515 Sonera Finland Auton
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
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 /8:18 /9:5 /10:8 /11:14 /12:35
/13:88 /14:230 /15:405 /16:7191 /17:1389 /18:2553
/19:7419 /20:6909 /21:4916 /22:7516 /23:9186 /24:61124
/25:223 /26:239 /27:105 /28:90 /29:92 /30:130
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1378 2131 UUNET Technologies, Inc.
1221 1145 1288 Telstra Pty Ltd
702 657 1032 UUNET Technologies, Inc.
7018 640 1220 AT&T
3908 580 847 Supernet, Inc.
4323 511 641 Time Warner Communications, I
1239 456 799 Sprint
7046 438 621 UUNET Technologies, Inc.
1 432 841 BBN Planet
690 432 436 Merit Network
852 382 628 Telus Advanced Communications
209 368 555 Qwest
3549 347 484 Global Crossing
2764 341 385 connect.com.au pty ltd
705 329 382 UUNET Technologies, Inc.
703 328 407 UUNET Technologies, Inc.
2149 275 367 Performance Systems, Inc.
6197 275 326 BellSouth Network Solutions,
11371 274 280 Rhythms NetConnections
7066 272 301 Virginia Polytechnic Institut
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:481 13:10 15:1 17:5
20:2 24:760 25:1 32:68 38:9 40:6
44:1 57:14 61:274 62:171 63:1886 64:1159
65:1073 66:818 67:53 68:4 80:209 81:7
128:64 129:121 130:23 131:56 132:11 133:3
134:126 135:10 136:282 137:102 138:148 139:48
140:189 141:64 142:83 143:37 144:142 145:11
146:218 147:157 148:133 149:92 150:41 151:50
152:342 153:33 154:8 155:89 156:76 157:117
158:73 159:125 160:24 161:55 162:139 163:107
164:98 165:123 166:224 167:188 168:95 169:50
170:290 171:2 189:1 192:5438 193:2230 194:2118
195:800 196:428 198:3711 199:3224 200:2365 201:1
202:3049 203:4558 204:3306 205:2153 206:2506 207:2637
208:2571 209:2803 210:558 211:201 212:874 213:590
214:9 215:18 216:3011 217:460 218:21
End of report
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