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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 Mon 04 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 109248
Prefixes after maximum aggregation: 72123
Unique aggregates announced to Internet: 51942
Total ASes present in the Internet Routing Table: 12660
Origin-only ASes present in the Internet Routing Table: 10966
Origin ASes announcing only one prefix: 4793
Transit ASes present in the Internet Routing Table: 1694
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: 16
Illegal AS announcements present in the Routing Table: 10
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: 1170552488
Equivalent to 69 /8s, 197 /16s and 54 /24s
Percentage of available address space announced: 31.6
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 73157
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17802
Total APNIC prefixes after maximum aggregation: 10640
Prefixes being announced from the APNIC address blocks: 16361
Unique aggregates announced from the APNIC address blocks: 9976
APNIC Region origin ASes present in the Internet Routing Table: 1455
APNIC Region origin ASes announcing only one prefix: 480
APNIC Region transit ASes present in the Internet Routing Table: 246
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 80213824
Equivalent to 4 /8s, 199 /16s and 247 /24s
Percentage of available APNIC address space announced: 59.3
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: 73134
Total ARIN prefixes after maximum aggregation: 47385
Prefixes being announced from the ARIN address blocks: 51660
Unique aggregates announced from the ARIN address blocks: 16265
ARIN Region origin ASes present in the Internet Routing Table: 7501
ARIN Region origin ASes announcing only one prefix: 2353
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: 190142276
Equivalent to 11 /8s, 85 /16s and 87 /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: 18308
Total RIPE prefixes after maximum aggregation: 14098
Prefixes being announced from the RIPE address blocks: 15049
Unique aggregates announced from the RIPE address blocks: 10044
RIPE Region origin ASes present in the Internet Routing Table: 3650
RIPE Region origin ASes announcing only one prefix: 1960
RIPE Region transit ASes present in the Internet Routing Table: 668
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 107140000
Equivalent to 6 /8s, 98 /16s and 211 /24s
Percentage of available RIPE address space announced: 71.0
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 1300 1229 958 Telstra Pty Ltd
4538 460 1162 16 China Education and Research
2907 407 1959 371 SINET Japan
703 399 353 309 UUNET Technologies, Inc.
2764 384 360 360 connect.com.au pty ltd
4755 298 111 86 Videsh Sanchar Nigam Ltd. Aut
7474 298 289 203 Optus Communications Pty Ltd
4134 270 1874 98 Data Communications Bureau
9443 270 44 62 Primus Telecommunications
9394 263 112 3 CHINA RAILWAY Internet(CRNET)
17557 233 15 100 Pakistan Telecom
4766 211 1393 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.,
7539 134 215 131 TANet2, sponsored by NSC, TAI
4713 127 914 104 NTT Communications Corporatio
7657 122 22 85 The Internet Group Limited
4780 120 186 40 Digital United Inc.
17676 115 1840 17 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1059 2630 849 UUNET Technologies, Inc.
3301 396 923 350 TeliaNet Sweden
3215 260 570 156 France Telecom / &Equant
1257 244 487 240 SWIPnet Swedish IP Network
680 231 2147 230 DFN-IP service G-WiN
5515 216 697 173 Sonera Finland Autonomous Sys
5400 201 82 93 Concert European Core Network
3320 195 1964 171 Deutsche Telekom AG
786 181 1858 181 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 161 22 147 Romania Data Systems S.A.
2856 131 790 120 BTnet UK Regional network
3303 123 577 123 Swisscom Ltd
3269 117 693 71 TELECOM ITALIA
12302 116 7 37 MobiFon S.A.
8297 113 36 64 Teleglobe Autonomous System i
517 100 226 98 KPNQwest Germany GmbH
9051 100 6 28 INCONET Autonomous System
2874 95 100 35 Global One Services AB
5511 89 192 78 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2163 8517 1515 UUNET Technologies, Inc.
7018 1207 7493 909 AT&T
3908 850 1676 479 Supernet, Inc.
1 826 8104 601 BBN Planet
1239 787 3347 621 Sprint
4323 643 435 256 Time Warner Communications, I
7046 626 835 411 UUNET Technologies, Inc.
852 618 1119 408 Telus Advanced Communications
209 536 1974 311 Qwest
3549 479 843 244 Global Crossing
2914 477 2176 417 Verio, Inc.
7132 456 511 165 Southwestern Bell Internet Se
690 439 67 285 Merit Network
7843 379 302 48 Adelphia Corp.
705 371 117 262 UUNET Technologies, Inc.
2149 368 208 306 Performance Systems, Inc.
3741 344 731 235 The Internet Solution
2386 335 355 191 AT&T Data Communications Serv
6197 331 246 167 BellSouth Network Solutions,
3561 326 2171 293 Cable & Wireless USA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 460 444 China Education and Research
4323 643 387 Time Warner Communications, I
3908 850 371 Supernet, Inc.
1221 1300 342 Telstra Pty Ltd
7843 379 331 Adelphia Corp.
7018 1207 298 AT&T
7132 456 291 Southwestern Bell Internet Se
4151 300 284 USDA
6198 307 275 BellSouth Network Solutions,
11371 278 272 Rhythms NetConnections
9394 263 260 CHINA RAILWAY Internet(CRNET)
6347 315 237 SAVVIS Communications Corpora
3549 479 235 Global Crossing
7029 242 227 Alltel Information Services,
1 826 225 BBN Planet
209 536 225 Qwest
7046 626 215 UUNET Technologies, Inc.
4755 298 212 Videsh Sanchar Nigam Ltd. Aut
702 1059 210 UUNET Technologies, Inc.
852 618 210 Telus Advanced Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65001 PRIVATE 148.249.0.0/16 8151 UniNet S.A. de C.V.
23309 UNALLOCATED 169.199.0.0/16 2150 California State Uni
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
23309 UNALLOCATED 209.79.154.0/23 2150 California State Uni
23309 UNALLOCATED 209.79.156.0/23 2150 California State Uni
23309 UNALLOCATED 209.132.144.0/24 2150 California State Uni
23309 UNALLOCATED 209.232.36.0/22 2150 California State Uni
65534 PRIVATE 209.242.166.0/26 195 San Diego Supercompu
65534 PRIVATE 209.242.166.72/29 195 San Diego Supercompu
65534 PRIVATE 209.242.166.80/28 195 San Diego Supercompu
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 /9:6 /10:8 /11:12 /12:34
/13:88 /14:233 /15:405 /16:7168 /17:1382 /18:2530
/19:7350 /20:6859 /21:4866 /22:7428 /23:9112 /24:60800
/25:218 /26:258 /27:122 /28:90 /29:92 /30:129
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1398 2163 UUNET Technologies, Inc.
1221 1156 1300 Telstra Pty Ltd
702 684 1059 UUNET Technologies, Inc.
7018 627 1207 AT&T
3908 583 850 Supernet, Inc.
4323 514 643 Time Warner Communications, I
1239 451 787 Sprint
7046 442 626 UUNET Technologies, Inc.
690 435 439 Merit Network
1 429 826 BBN Planet
852 375 618 Telus Advanced Communications
209 353 536 Qwest
3549 343 479 Global Crossing
2764 340 384 connect.com.au pty ltd
703 322 399 UUNET Technologies, Inc.
705 316 371 UUNET Technologies, Inc.
2149 278 368 Performance Systems, Inc.
6197 278 331 BellSouth Network Solutions,
7066 272 301 Virginia Polytechnic Institut
11371 272 278 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 9:1 12:485 13:10 15:1 17:5
20:2 24:758 25:1 32:68 38:9 40:6
44:1 57:15 61:239 62:174 63:1882 64:1133
65:1052 66:761 67:50 68:7 80:214 81:5
128:63 129:123 130:23 131:56 132:11 133:3
134:126 135:10 136:248 137:103 138:143 139:48
140:176 141:62 142:82 143:37 144:143 145:13
146:217 147:163 148:150 149:91 150:40 151:48
152:346 153:31 154:7 155:88 156:74 157:118
158:79 159:116 160:23 161:55 162:140 163:115
164:91 165:119 166:222 167:186 168:120 169:49
170:290 171:2 189:1 192:5417 193:2194 194:2085
195:792 196:432 198:3682 199:3234 200:2366 201:1
202:3054 203:4536 204:3317 205:2174 206:2518 207:2632
208:2546 209:2797 210:548 211:196 212:883 213:594
214:9 215:18 216:2961 217:462 218:21
End of report
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