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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 22 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119673
Prefixes after maximum aggregation: 76542
Unique aggregates announced to Internet: 57535
Total ASes present in the Internet Routing Table: 14446
Origin-only ASes present in the Internet Routing Table: 12548
Origin ASes announcing only one prefix: 5649
Transit ASes present in the Internet Routing Table: 1898
Transit-only ASes present in the Internet Routing Table: 63
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: 8
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: 1191309017
Equivalent to 71 /8s, 1 /16s and 238 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 55493
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20162
Total APNIC prefixes after maximum aggregation: 11911
Prefixes being announced from the APNIC address blocks: 18662
Unique aggregates announced from the APNIC address blocks: 11399
APNIC Region origin ASes present in the Internet Routing Table: 1718
APNIC Region origin ASes announcing only one prefix: 525
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: 13
Number of APNIC addresses announced to Internet: 104599968
Equivalent to 6 /8s, 60 /16s and 17 /24s
Percentage of available APNIC address space announced: 68.8
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: 73889
Total ARIN prefixes after maximum aggregation: 47173
Prefixes being announced from the ARIN address blocks: 52090
Unique aggregates announced from the ARIN address blocks: 16062
ARIN Region origin ASes present in the Internet Routing Table: 8068
ARIN Region origin ASes announcing only one prefix: 2716
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: 185729264
Equivalent to 11 /8s, 18 /16s and 0 /24s
Percentage of available ARIN address space announced: 69.2
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
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: 20495
Total RIPE prefixes after maximum aggregation: 15276
Prefixes being announced from the RIPE address blocks: 17095
Unique aggregates announced from the RIPE address blocks: 11476
RIPE Region origin ASes present in the Internet Routing Table: 4275
RIPE Region origin ASes announcing only one prefix: 2327
RIPE Region transit ASes present in the Internet Routing Table: 779
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 122436416
Equivalent to 7 /8s, 76 /16s and 59 /24s
Percentage of available RIPE address space announced: 81.1
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: 5121
Total LACNIC prefixes after maximum aggregation: 2182
Prefixes being announced from the LACNIC address blocks: 4491
Unique aggregates announced from the LACNIC address blocks: 2935
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: 69
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 11859200
Equivalent to 0 /8s, 180 /16s and 245 /24s
Percentage of available LACNIC address space announced: 70.7
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 1134 1184 835 Telstra Pty Ltd
703 406 368 318 UUNET
2907 392 1976 368 SINET Japan
2764 338 341 307 connect.com.au pty ltd
17557 329 24 129 Pakistan Telecom
4134 298 2505 97 Data Communications Bureau
7474 294 276 206 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
3786 237 772 204 DACOM Corporation
4755 237 122 84 Videsh Sanchar Nigam Ltd. Aut
17676 229 3557 28 XTAGE CORPORATION
4766 200 2075 149 Korea Internet Exchange for "
9583 194 33 12 Satyam Infoway Ltd.,
9443 188 57 77 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 136 7 13 World Net & Services Co., Ltd
4716 129 737 123 TTnet
9768 129 384 64 Korea Telecom
9238 126 7 17 TATA ISP
4713 123 1068 103 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1608 8998 1183 UUNET Technologies, Inc.
7018 1435 7092 967 AT&T
3908 1201 1636 508 Supernet, Inc.
1239 968 3160 679 Sprint
852 680 1140 448 Telus Advanced Communications
1 656 8076 431 GENUITY
7843 580 395 235 Adelphia Corp.
7046 557 825 257 UUNET Technologies, Inc.
4323 528 472 167 Time Warner Communications, I
690 521 76 326 Merit Network
209 515 2102 324 Qwest
7066 491 204 252 Virginia Polytechnic Institut
6197 464 561 104 BellSouth Network Solutions,
18566 440 112 5 Covad Communications
705 429 133 185 UUNET Technologies, Inc.
2386 427 451 234 AT&T Data Communications Serv
6198 421 185 198 BellSouth Network Solutions,
4355 408 313 116 EarthLink, Inc.
3549 399 709 296 Global Crossing
15290 394 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 808 2306 671 UUNET - Commercial IP service
3301 319 1141 298 TeliaNet Sweden
3215 313 803 174 France Telecom Transpac
3320 254 1995 227 Deutsche Telekom AG
680 237 2166 235 DFN-IP service G-WiN
5515 214 783 175 Sonera Solution Autonomous Sy
1257 206 400 195 SWIPnet Swedish IP Network
786 177 1873 177 The JANET IP Service
719 171 306 130 LANLINK autonomous system
5400 159 68 96 BT Ignite European Backbone
8708 156 42 146 Romania Data Systems S.A.
3303 144 517 143 Swisscom Ltd
20858 143 17 3 This AS will be used to conne
2856 130 1302 117 BTnet UK Regional network
8220 123 174 114 COLT Internet - International
12302 123 18 30 MobiFon S.A.
3246 118 378 115 Song Networks
3269 113 754 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 316 98 106 ImpSat
7303 229 36 52 Telecom Argentina Stet-France
8151 206 316 112 UniNet S.A. de C.V.
11172 159 81 32 Servicios Alestra S.A de C.V
6503 158 207 108 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 81 2 33 Red Universitaria Nacional
6147 78 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 72 27 37 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 32 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 62 11 40 Global One Colombia
11830 59 4 20 Instituto Costarricense de El
15034 59 5 31 TIBA SA
4926 57 4 47 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1201 693 Supernet, Inc.
7018 1435 468 AT&T
18566 440 435 Covad Communications
4323 528 361 Time Warner Communications, I
6197 464 360 BellSouth Network Solutions,
7843 580 345 Adelphia Corp.
7046 557 300 UUNET Technologies, Inc.
1221 1134 299 Telstra Pty Ltd
11492 299 298 Cable One
4355 408 292 EarthLink, Inc.
6347 372 292 SAVVIS Communications Corpora
1239 968 289 Sprint
4151 327 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
4814 261 246 China Telecom (Group)
705 429 244 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 491 239 Virginia Polytechnic Institut
852 680 232 Telus Advanced Communications
1 656 225 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
64514 PRIVATE 198.188.18.0/24 2151 California State Uni
64514 PRIVATE 198.188.28.0/24 2151 California State Uni
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
64514 PRIVATE 207.62.82.0/23 2151 California State Uni
64514 PRIVATE 207.62.84.0/22 2151 California State Uni
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 /14:240 /15:444 /16:7328 /17:1561 /18:2836
/19:8045 /20:7838 /21:5651 /22:8585 /23:10254 /24:66028
/25:139 /26:170 /27:86 /28:78 /29:62 /30:108
/31:0 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 767 1201 Supernet, Inc.
7018 519 1435 AT&T
702 495 808 UUNET - Commercial IP service
690 470 521 Merit Network
18566 435 440 Covad Communications
701 425 1608 UUNET Technologies, Inc.
7066 390 491 Virginia Polytechnic Institut
1239 355 968 Sprint
7843 354 580 Adelphia Corp.
6197 341 464 BellSouth Network Solutions,
6198 335 421 BellSouth Network Solutions,
6140 304 316 ImpSat
11492 298 299 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 253 557 UUNET Technologies, Inc.
3215 240 313 France Telecom Transpac
20115 230 350 Charter Communications
2386 229 427 AT&T Data Communications Serv
7303 228 229 Telecom Argentina Stet-France
4355 227 408 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:639 13:1 15:6 17:3 20:7 24:789
25:1 32:82 38:37 40:18 44:1 55:1
57:16 61:432 62:476 63:1885 64:1355 65:1813
66:1378 67:202 68:221 69:37 80:320 81:83
128:128 129:188 130:22 131:73 132:9 133:4
134:157 135:7 136:206 137:112 138:208 139:68
140:123 141:103 142:95 143:44 144:151 145:16
146:256 147:125 148:266 149:78 150:42 151:94
152:259 153:38 154:7 155:104 156:48 157:63
158:120 159:138 160:29 161:57 162:132 163:83
164:275 165:137 166:85 167:303 168:392 169:57
170:290 171:8 178:1 192:5365 193:2397 194:1971
195:902 196:455 198:3582 199:3030 200:2797 202:3649
203:5016 204:3020 205:2119 206:2353 207:2427 208:2670
209:2736 210:695 211:321 212:895 213:706 214:14
215:22 216:3202 217:551 218:71 219:16 220:42
End of report
