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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 21 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118340
Prefixes after maximum aggregation: 75778
Unique aggregates announced to Internet: 56774
Total ASes present in the Internet Routing Table: 14264
Origin-only ASes present in the Internet Routing Table: 12370
Origin ASes announcing only one prefix: 5594
Transit ASes present in the Internet Routing Table: 1894
Transit-only ASes present in the Internet Routing Table: 59
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1186743065
Equivalent to 70 /8s, 188 /16s and 67 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54570
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19430
Total APNIC prefixes after maximum aggregation: 11528
Prefixes being announced from the APNIC address blocks: 17962
Unique aggregates announced from the APNIC address blocks: 11193
APNIC Region origin ASes present in the Internet Routing Table: 1660
APNIC Region origin ASes announcing only one prefix: 527
APNIC Region transit ASes present in the Internet Routing Table: 288
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 101759392
Equivalent to 6 /8s, 16 /16s and 185 /24s
Percentage of available APNIC address space announced: 66.9
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73446
Total ARIN prefixes after maximum aggregation: 46879
Prefixes being announced from the ARIN address blocks: 51263
Unique aggregates announced from the ARIN address blocks: 15796
ARIN Region origin ASes present in the Internet Routing Table: 8000
ARIN Region origin ASes announcing only one prefix: 2695
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 184023536
Equivalent to 10 /8s, 247 /16s and 249 /24s
Percentage of available ARIN address space announced: 68.6
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
25600 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 20397
Total RIPE prefixes after maximum aggregation: 15188
Prefixes being announced from the RIPE address blocks: 17015
Unique aggregates announced from the RIPE address blocks: 11297
RIPE Region origin ASes present in the Internet Routing Table: 4223
RIPE Region origin ASes announcing only one prefix: 2291
RIPE Region transit ASes present in the Internet Routing Table: 776
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 121696384
Equivalent to 7 /8s, 64 /16s and 240 /24s
Percentage of available RIPE address space announced: 80.6
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, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5062
Total LACNIC prefixes after maximum aggregation: 2183
Prefixes being announced from the LACNIC address blocks: 4398
Unique aggregates announced from the LACNIC address blocks: 2843
LACNIC Region origin ASes present in the Internet Routing Table: 324
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11708416
Equivalent to 0 /8s, 178 /16s and 168 /24s
Percentage of available LACNIC address space announced: 69.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1139 1183 823 Telstra Pty Ltd
703 398 364 316 UUNET
2907 357 1768 335 SINET Japan
2764 341 341 309 connect.com.au pty ltd
17557 315 23 124 Pakistan Telecom
7474 310 281 205 Optus Communications Pty Ltd
4134 293 2384 89 Data Communications Bureau
4755 268 135 74 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
4766 233 1808 161 Korea Internet Exchange for "
17676 230 3602 27 XTAGE CORPORATION
9583 193 33 12 Satyam Infoway Ltd.,
9443 187 57 76 Primus Telecommunications
9800 151 195 45 CHINA UNICOM
4716 129 723 123 TTnet
7657 128 26 91 The Internet Group Limited
9768 128 384 63 Korea Telecom
4621 122 11 65 UNINET-TH
4739 120 56 110 Commerical Internet eXchange
3786 118 746 97 DACOM Corporation
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1647 9037 1217 UUNET Technologies, Inc.
7018 1421 7663 951 AT&T
3908 1181 1635 497 Supernet, Inc.
1239 952 3151 680 Sprint
1 666 8091 440 GENUITY
7843 630 406 258 Adelphia Corp.
852 624 1140 443 Telus Advanced Communications
7046 579 861 279 UUNET Technologies, Inc.
4323 531 471 167 Time Warner Communications, I
209 524 2048 337 Qwest
690 513 75 319 Merit Network
7066 489 204 257 Virginia Polytechnic Institut
6197 453 560 103 BellSouth Network Solutions,
705 428 133 188 UUNET Technologies, Inc.
6198 420 182 196 BellSouth Network Solutions,
18566 414 93 15 Covad Communications
3561 412 2236 354 Cable & Wireless USA
4355 407 313 118 EarthLink, Inc.
3549 403 741 297 Global Crossing
15290 393 215 177 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 809 2291 672 UUNET - Commercial IP service
3301 344 1144 300 TeliaNet Sweden
3215 313 819 174 France Telecom Transpac
3320 251 1962 224 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 213 783 174 Sonera Solution Autonomous Sy
1257 212 416 201 SWIPnet Swedish IP Network
719 199 306 129 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 162 70 98 BT Ignite European Backbone
8708 153 42 146 Romania Data Systems S.A.
20858 146 17 4 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
2856 131 1301 119 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
8220 123 174 114 COLT Internet - International
3246 118 378 115 Song Networks
3269 111 754 63 TELECOM ITALIA
8517 106 48 3 ULAKNET-ASN
5511 105 193 82 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 314 97 103 ImpSat USA, Inc.
7303 220 35 56 Telecom Argentina Stet-France
8151 206 315 112 UniNet S.A. de C.V.
11172 171 87 34 Servicios Alestra S.A de C.V
6503 157 207 110 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 107 7 12 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 91 2 36 Red Universitaria Nacional
6147 77 58 24 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 73 27 37 Telefonica Empresas
6535 72 5 16 Chilesat Servicios Empresari
4270 69 18 10 Red de Interconexion Universi
11992 68 7 31 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 65 12 41 Global One Colombia
4926 59 4 49 Telintar S.A.
7927 57 5 40 Global One Venezuela
15034 56 5 32 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1181 684 Supernet, Inc.
7018 1421 470 AT&T
18566 414 399 Covad Communications
7843 630 372 Adelphia Corp.
4323 531 364 Time Warner Communications, I
6197 453 350 BellSouth Network Solutions,
1221 1139 316 Telstra Pty Ltd
1580 325 303 ANOSCEUR
7046 579 300 UUNET Technologies, Inc.
4355 407 289 EarthLink, Inc.
6347 360 281 SAVVIS Communications Corpora
11492 278 277 Cable One
1239 952 272 Sprint
22927 289 267 TELEFONICA DE ARGENTINA
4151 324 266 USDA
376 344 241 Reseau Interordinateurs Scien
705 428 240 UUNET Technologies, Inc.
4814 249 234 China Telecom (Group)
7066 489 232 Virginia Polytechnic Institut
1 666 226 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64586 PRIVATE 202.165.140.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.141.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.143.0/24 4845 Chung Hsiao East Roa
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
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 GENUITY
158.0.0.0/13 568 DISO-UNRRA
158.255.3.0/24 702 UUNET - Commercial IP service
164.236.0.0/16 568 DISO-UNRRA
178.54.59.0/24 7018 AT&T
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.68.128.0/22 1239 Sprint
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:3 /10:8 /11:12 /12:46
/13:92 /14:235 /15:438 /16:7321 /17:1545 /18:2797
/19:7982 /20:7694 /21:5537 /22:8362 /23:10077 /24:65497
/25:136 /26:177 /27:96 /28:73 /29:52 /30:106
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 752 1181 Supernet, Inc.
702 497 809 UUNET - Commercial IP service
7018 485 1421 AT&T
690 462 513 Merit Network
701 447 1647 UUNET Technologies, Inc.
18566 411 414 Covad Communications
7843 409 630 Adelphia Corp.
7066 386 489 Virginia Polytechnic Institut
6198 336 420 BellSouth Network Solutions,
1239 333 952 Sprint
6197 331 453 BellSouth Network Solutions,
1580 310 325 ANOSCEUR
6140 302 314 ImpSat USA, Inc.
22927 288 289 TELEFONICA DE ARGENTINA
11492 277 278 Cable One
7046 272 579 UUNET Technologies, Inc.
3215 239 313 France Telecom Transpac
4355 225 407 EarthLink, Inc.
7303 219 220 Telecom Argentina Stet-France
209 212 524 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:611 13:1 15:6 17:3 20:7 24:799
25:1 32:45 38:31 40:17 44:1 55:1
57:16 61:402 62:422 63:1868 64:1318 65:1696
66:1259 67:190 68:211 69:45 80:316 81:78
128:124 129:182 130:20 131:72 132:8 133:2
134:147 135:6 136:497 137:108 138:212 139:84
140:156 141:99 142:92 143:44 144:149 145:18
146:247 147:250 148:277 149:77 150:43 151:89
152:252 153:36 154:7 155:104 156:44 157:58
158:120 159:138 160:21 161:62 162:133 163:91
164:258 165:132 166:83 167:302 168:384 169:56
170:293 171:8 178:1 192:5442 193:2433 194:2067
195:891 196:455 198:3578 199:3062 200:2719 202:3619
203:4856 204:3001 205:2117 206:2336 207:2432 208:2588
209:2686 210:639 211:284 212:881 213:722 214:12
215:21 216:3102 217:535 218:67 219:14 220:8
End of report
