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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 15 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119805
Prefixes after maximum aggregation: 76427
Unique aggregates announced to Internet: 57391
Total ASes present in the Internet Routing Table: 14405
Origin-only ASes present in the Internet Routing Table: 12514
Origin ASes announcing only one prefix: 5638
Transit ASes present in the Internet Routing Table: 1891
Transit-only ASes present in the Internet Routing Table: 59
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
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: 30
Number of addresses announced to Internet: 1190285081
Equivalent to 70 /8s, 242 /16s and 79 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 55712
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19968
Total APNIC prefixes after maximum aggregation: 11870
Prefixes being announced from the APNIC address blocks: 18462
Unique aggregates announced from the APNIC address blocks: 11359
APNIC Region origin ASes present in the Internet Routing Table: 1710
APNIC Region origin ASes announcing only one prefix: 524
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: 103902880
Equivalent to 6 /8s, 49 /16s and 110 /24s
Percentage of available APNIC address space announced: 68.3
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74173
Total ARIN prefixes after maximum aggregation: 47102
Prefixes being announced from the ARIN address blocks: 51873
Unique aggregates announced from the ARIN address blocks: 15995
ARIN Region origin ASes present in the Internet Routing Table: 8061
ARIN Region origin ASes announcing only one prefix: 2726
ARIN Region transit ASes present in the Internet Routing Table: 758
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185486320
Equivalent to 11 /8s, 14 /16s and 75 /24s
Percentage of available ARIN address space announced: 69.1
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: 20535
Total RIPE prefixes after maximum aggregation: 15262
Prefixes being announced from the RIPE address blocks: 17129
Unique aggregates announced from the RIPE address blocks: 11402
RIPE Region origin ASes present in the Internet Routing Table: 4255
RIPE Region origin ASes announcing only one prefix: 2308
RIPE Region transit ASes present in the Internet Routing Table: 768
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 122173312
Equivalent to 7 /8s, 72 /16s and 55 /24s
Percentage of available RIPE address space announced: 80.9
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: 5125
Total LACNIC prefixes after maximum aggregation: 2193
Prefixes being announced from the LACNIC address blocks: 4478
Unique aggregates announced from the LACNIC address blocks: 2945
LACNIC Region origin ASes present in the Internet Routing Table: 323
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11826432
Equivalent to 0 /8s, 180 /16s and 117 /24s
Percentage of available LACNIC address space announced: 70.5
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 1131 1184 833 Telstra Pty Ltd
703 398 364 314 UUNET
2907 390 1975 366 SINET Japan
2764 338 341 307 connect.com.au pty ltd
17557 325 24 127 Pakistan Telecom
7474 314 281 205 Optus Communications Pty Ltd
4134 287 2407 87 Data Communications Bureau
4814 251 79 15 China Telecom (Group)
4755 241 134 75 Videsh Sanchar Nigam Ltd. Aut
3786 237 772 204 DACOM Corporation
17676 227 3554 26 XTAGE CORPORATION
4766 200 2075 149 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 186 57 76 Primus Telecommunications
9800 166 204 43 CHINA UNICOM
4716 130 738 124 TTnet
9768 129 384 64 Korea Telecom
7657 125 26 87 The Internet Group Limited
9238 124 7 16 TATA ISP
4739 123 57 113 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1619 9046 1193 UUNET Technologies, Inc.
7018 1469 7269 985 AT&T
3908 1180 1633 493 Supernet, Inc.
1239 973 3144 679 Sprint
1 659 8076 433 GENUITY
7843 632 409 263 Adelphia Corp.
852 628 1140 445 Telus Advanced Communications
7046 549 841 259 UUNET Technologies, Inc.
4323 526 488 168 Time Warner Communications, I
209 519 2102 328 Qwest
690 507 75 315 Merit Network
7066 491 204 252 Virginia Polytechnic Institut
6197 460 561 104 BellSouth Network Solutions,
705 427 133 186 UUNET Technologies, Inc.
6198 425 185 199 BellSouth Network Solutions,
18566 423 96 5 Covad Communications
4355 408 313 116 EarthLink, Inc.
3549 399 709 293 Global Crossing
2386 394 463 221 AT&T Data Communications Serv
15290 393 215 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 807 2290 670 UUNET - Commercial IP service
3301 341 1141 297 TeliaNet Sweden
3215 315 819 175 France Telecom Transpac
3320 255 1995 228 Deutsche Telekom AG
680 238 2166 235 DFN-IP service G-WiN
5515 213 783 174 Sonera Solution Autonomous Sy
1257 207 400 196 SWIPnet Swedish IP Network
786 176 1873 176 The JANET IP Service
719 171 306 130 LANLINK autonomous system
5400 161 70 98 BT Ignite European Backbone
8708 158 42 146 Romania Data Systems S.A.
20858 149 17 4 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 131 1302 118 BTnet UK Regional network
8220 123 174 113 COLT Internet - International
12302 123 18 30 MobiFon S.A.
3246 118 378 115 Song Networks
3269 112 754 63 TELECOM ITALIA
5511 106 193 83 France Telecom
3233 104 10 8 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 317 98 104 ImpSat USA, Inc.
7303 228 36 52 Telecom Argentina Stet-France
8151 208 332 113 UniNet S.A. de C.V.
11172 164 83 33 Servicios Alestra S.A de C.V
6503 155 191 107 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
10620 98 6 32 TVCABLE BOGOTA
11340 82 2 33 Red Universitaria Nacional
6147 78 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 16 Chilesat Servicios Empresari
15311 72 27 37 Telefonica Empresas
4270 68 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
11992 67 7 31 Integrated Systems
7984 62 11 40 Global One Colombia
15034 58 5 33 TIBA SA
4926 57 4 47 Telintar S.A.
7927 57 5 40 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1180 687 Supernet, Inc.
7018 1469 484 AT&T
18566 423 418 Covad Communications
7843 632 369 Adelphia Corp.
4323 526 358 Time Warner Communications, I
6197 460 356 BellSouth Network Solutions,
1580 315 302 ANOSCEUR
1221 1131 298 Telstra Pty Ltd
1239 973 294 Sprint
11492 294 293 Cable One
4355 408 292 EarthLink, Inc.
7046 549 290 UUNET Technologies, Inc.
6347 367 288 SAVVIS Communications Corpora
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
705 427 241 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 491 239 Virginia Polytechnic Institut
4814 251 236 China Telecom (Group)
1 659 226 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
65535 PRIVATE 202.57.188.0/24 7654 Siam Global Access C
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65000 PRIVATE 210.90.54.0/25 9768 Korea Telecom
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
158.255.3.0/24 702 UUNET - Commercial IP service
178.54.59.0/24 7018 AT&T
188.1.0.0/16 680 DFN-IP service G-WiN
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.156.164.0/24 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 /12:44
/13:91 /14:239 /15:441 /16:7340 /17:1558 /18:2829
/19:8032 /20:7811 /21:5620 /22:8532 /23:10256 /24:66277
/25:139 /26:170 /27:91 /28:79 /29:66 /30:108
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 747 1180 Supernet, Inc.
7018 504 1469 AT&T
702 495 807 UUNET - Commercial IP service
690 456 507 Merit Network
701 435 1619 UUNET Technologies, Inc.
18566 418 423 Covad Communications
7843 407 632 Adelphia Corp.
7066 390 491 Virginia Polytechnic Institut
1239 361 973 Sprint
6198 339 425 BellSouth Network Solutions,
6197 337 460 BellSouth Network Solutions,
6140 305 317 ImpSat USA, Inc.
1580 301 315 ANOSCEUR
11492 293 294 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 243 549 UUNET Technologies, Inc.
3215 241 315 France Telecom Transpac
20115 231 348 Charter Communications
4355 227 408 EarthLink, Inc.
7303 227 228 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:629 13:1 15:6 17:3 20:7 24:789
25:1 32:43 38:36 40:18 44:1 55:1
57:16 61:421 62:458 63:1853 64:1362 65:1799
66:1363 67:200 68:225 69:43 80:323 81:83
128:123 129:184 130:23 131:70 132:9 133:4
134:170 135:6 136:491 137:111 138:209 139:84
140:185 141:103 142:95 143:44 144:148 145:18
146:256 147:250 148:269 149:79 150:43 151:90
152:284 153:37 154:7 155:103 156:49 157:60
158:120 159:139 160:24 161:63 162:142 163:84
164:262 165:136 166:76 167:302 168:390 169:56
170:289 171:8 178:1 192:5389 193:2395 194:1987
195:924 196:456 198:3587 199:3074 200:2786 202:3623
203:4941 204:3007 205:2112 206:2366 207:2412 208:2622
209:2678 210:670 211:318 212:895 213:751 214:12
215:23 216:3198 217:553 218:71 219:17 220:33
End of report
