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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 11 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119483
Prefixes after maximum aggregation: 76342
Unique aggregates announced to Internet: 57088
Total ASes present in the Internet Routing Table: 14375
Origin-only ASes present in the Internet Routing Table: 12491
Origin ASes announcing only one prefix: 5645
Transit ASes present in the Internet Routing Table: 1884
Transit-only ASes present in the Internet Routing Table: 58
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: 1190196505
Equivalent to 70 /8s, 240 /16s and 245 /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: 55545
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19827
Total APNIC prefixes after maximum aggregation: 11834
Prefixes being announced from the APNIC address blocks: 18324
Unique aggregates announced from the APNIC address blocks: 11300
APNIC Region origin ASes present in the Internet Routing Table: 1703
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 285
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 103694240
Equivalent to 6 /8s, 46 /16s and 63 /24s
Percentage of available APNIC address space announced: 68.2
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: 74013
Total ARIN prefixes after maximum aggregation: 47073
Prefixes being announced from the ARIN address blocks: 51773
Unique aggregates announced from the ARIN address blocks: 15818
ARIN Region origin ASes present in the Internet Routing Table: 8045
ARIN Region origin ASes announcing only one prefix: 2730
ARIN Region transit ASes present in the Internet Routing Table: 755
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185461232
Equivalent to 11 /8s, 13 /16s and 233 /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: 20504
Total RIPE prefixes after maximum aggregation: 15253
Prefixes being announced from the RIPE address blocks: 17090
Unique aggregates announced from the RIPE address blocks: 11381
RIPE Region origin ASes present in the Internet Routing Table: 4248
RIPE Region origin ASes announcing only one prefix: 2313
RIPE Region transit ASes present in the Internet Routing Table: 766
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 122096256
Equivalent to 7 /8s, 71 /16s and 10 /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: 5135
Total LACNIC prefixes after maximum aggregation: 2182
Prefixes being announced from the LACNIC address blocks: 4469
Unique aggregates announced from the LACNIC address blocks: 2922
LACNIC Region origin ASes present in the Internet Routing Table: 324
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: 11
Number of LACNIC addresses announced to Internet: 11816192
Equivalent to 0 /8s, 180 /16s and 77 /24s
Percentage of available LACNIC address space announced: 70.4
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 1137 1185 837 Telstra Pty Ltd
703 398 364 314 UUNET
2907 352 1751 331 SINET Japan
2764 339 341 308 connect.com.au pty ltd
17557 325 24 127 Pakistan Telecom
7474 313 281 205 Optus Communications Pty Ltd
4134 290 2408 90 Data Communications Bureau
4755 251 134 74 Videsh Sanchar Nigam Ltd. Aut
4814 251 79 15 China Telecom (Group)
3786 235 772 204 DACOM Corporation
17676 231 3618 24 XTAGE CORPORATION
4766 200 2075 149 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 187 57 77 Primus Telecommunications
9800 165 203 42 CHINA UNICOM
7713 132 46 14 PT TELEKOMUNIKASI INDONESIA
4716 129 722 123 TTnet
9768 129 384 64 Korea Telecom
9238 128 7 18 TATA ISP
7657 124 26 87 The Internet Group Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1622 9047 1196 UUNET Technologies, Inc.
7018 1477 7854 968 AT&T
3908 1189 1635 499 Supernet, Inc.
1239 971 3145 679 Sprint
1 660 8076 433 GENUITY
7843 630 407 268 Adelphia Corp.
852 627 1124 445 Telus Advanced Communications
7046 553 841 262 UUNET Technologies, Inc.
4323 527 488 168 Time Warner Communications, I
209 520 2118 329 Qwest
690 513 75 319 Merit Network
7066 490 204 252 Virginia Polytechnic Institut
6197 458 561 104 BellSouth Network Solutions,
705 429 133 188 UUNET Technologies, Inc.
18566 422 96 5 Covad Communications
6198 420 182 196 BellSouth Network Solutions,
4355 406 313 118 EarthLink, Inc.
3549 404 709 297 Global Crossing
3561 394 2211 323 Cable & Wireless USA
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 342 1141 298 TeliaNet Sweden
3215 315 819 175 France Telecom Transpac
3320 257 1996 230 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
719 201 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 160 68 97 BT Ignite European Backbone
8708 157 42 146 Romania Data Systems S.A.
20858 148 17 4 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 131 1302 118 BTnet UK Regional network
8220 124 174 114 COLT Internet - International
12302 121 17 33 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 313 98 104 ImpSat USA, Inc.
7303 225 36 52 Telecom Argentina Stet-France
8151 208 332 113 UniNet S.A. de C.V.
11172 174 87 34 Servicios Alestra S.A de C.V
6503 156 191 108 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 80 2 31 Red Universitaria Nacional
6147 77 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
11992 68 7 31 Integrated Systems
4270 67 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
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 1189 690 Supernet, Inc.
7018 1477 509 AT&T
18566 422 417 Covad Communications
7843 630 362 Adelphia Corp.
4323 527 359 Time Warner Communications, I
6197 458 354 BellSouth Network Solutions,
1580 315 302 ANOSCEUR
1221 1137 300 Telstra Pty Ltd
1239 971 292 Sprint
7046 553 291 UUNET Technologies, Inc.
6347 370 291 SAVVIS Communications Corpora
4355 406 288 EarthLink, Inc.
11492 287 286 Cable One
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
705 429 241 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 490 238 Virginia Polytechnic Institut
4814 251 236 China Telecom (Group)
1 660 227 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,
64513 PRIVATE 207.212.206.0/23 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
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
192.156.164.0/24 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 /11:13 /12:45
/13:92 /14:241 /15:441 /16:7340 /17:1557 /18:2821
/19:8015 /20:7792 /21:5607 /22:8517 /23:10243 /24:66040
/25:139 /26:175 /27:90 /28:78 /29:63 /30:107
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 757 1189 Supernet, Inc.
7018 505 1477 AT&T
702 495 807 UUNET - Commercial IP service
690 462 513 Merit Network
701 434 1622 UUNET Technologies, Inc.
18566 417 422 Covad Communications
7843 405 630 Adelphia Corp.
7066 389 490 Virginia Polytechnic Institut
1239 359 971 Sprint
6198 336 420 BellSouth Network Solutions,
6197 335 458 BellSouth Network Solutions,
1580 301 315 ANOSCEUR
6140 301 313 ImpSat USA, Inc.
22927 288 289 TELEFONICA DE ARGENTINA
11492 286 287 Cable One
7046 243 553 UUNET Technologies, Inc.
3215 241 315 France Telecom Transpac
20115 230 343 Charter Communications
4355 224 406 EarthLink, Inc.
7303 224 225 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:623 13:1 15:6 17:3 20:5 24:783
25:1 32:43 38:36 40:18 44:1 55:1
57:15 61:424 62:437 63:1854 64:1363 65:1783
66:1360 67:199 68:222 69:43 80:323 81:81
128:123 129:184 130:23 131:69 132:9 133:3
134:152 135:6 136:489 137:110 138:207 139:84
140:182 141:102 142:95 143:44 144:149 145:18
146:250 147:250 148:278 149:77 150:43 151:90
152:291 153:37 154:7 155:103 156:47 157:59
158:120 159:139 160:24 161:64 162:145 163:85
164:260 165:136 166:82 167:302 168:389 169:57
170:288 171:8 178:1 192:5402 193:2392 194:2015
195:902 196:454 198:3578 199:3066 200:2779 202:3591
203:4892 204:3007 205:2109 206:2361 207:2404 208:2628
209:2681 210:655 211:317 212:894 213:736 214:12
215:22 216:3160 217:564 218:68 219:14 220:31
End of report
