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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 19 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119491
Prefixes after maximum aggregation: 76420
Unique aggregates announced to Internet: 57264
Total ASes present in the Internet Routing Table: 14421
Origin-only ASes present in the Internet Routing Table: 12529
Origin ASes announcing only one prefix: 5644
Transit ASes present in the Internet Routing Table: 1892
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: 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: 1193296729
Equivalent to 71 /8s, 32 /16s and 67 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 55399
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20097
Total APNIC prefixes after maximum aggregation: 11862
Prefixes being announced from the APNIC address blocks: 18590
Unique aggregates announced from the APNIC address blocks: 11319
APNIC Region origin ASes present in the Internet Routing Table: 1709
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 290
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 104329120
Equivalent to 6 /8s, 55 /16s and 239 /24s
Percentage of available APNIC address space announced: 68.6
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: 73673
Total ARIN prefixes after maximum aggregation: 47109
Prefixes being announced from the ARIN address blocks: 51962
Unique aggregates announced from the ARIN address blocks: 15894
ARIN Region origin ASes present in the Internet Routing Table: 8065
ARIN Region origin ASes announcing only one prefix: 2715
ARIN Region transit ASes present in the Internet Routing Table: 753
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 188419568
Equivalent to 11 /8s, 59 /16s and 13 /24s
Percentage of available ARIN address space announced: 70.2
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: 20596
Total RIPE prefixes after maximum aggregation: 15275
Prefixes being announced from the RIPE address blocks: 17189
Unique aggregates announced from the RIPE address blocks: 11456
RIPE Region origin ASes present in the Internet Routing Table: 4269
RIPE Region origin ASes announcing only one prefix: 2326
RIPE Region transit ASes present in the Internet Routing Table: 773
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 122229184
Equivalent to 7 /8s, 73 /16s and 17 /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: 5119
Total LACNIC prefixes after maximum aggregation: 2174
Prefixes being announced from the LACNIC address blocks: 4475
Unique aggregates announced from the LACNIC address blocks: 2922
LACNIC Region origin ASes present in the Internet Routing Table: 322
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11844608
Equivalent to 0 /8s, 180 /16s and 188 /24s
Percentage of available LACNIC address space announced: 70.6
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 1128 1184 832 Telstra Pty Ltd
703 397 364 313 UUNET
2907 391 1976 367 SINET Japan
2764 337 341 306 connect.com.au pty ltd
17557 323 23 134 Pakistan Telecom
7474 313 281 204 Optus Communications Pty Ltd
4134 296 2457 95 Data Communications Bureau
4814 251 79 15 China Telecom (Group)
3786 237 772 204 DACOM Corporation
4755 236 134 74 Videsh Sanchar Nigam Ltd. Aut
17676 228 3556 27 XTAGE CORPORATION
4766 200 2075 149 Korea Internet Exchange for "
9583 190 33 12 Satyam Infoway Ltd.,
9443 185 57 77 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 136 7 13 World Net & Services Co., Ltd
4716 130 738 124 TTnet
9768 129 384 64 Korea Telecom
9238 125 7 17 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 1605 9014 1180 UUNET Technologies, Inc.
7018 1419 7075 959 AT&T
3908 1201 1636 507 Supernet, Inc.
1239 964 3160 676 Sprint
1 659 8076 432 GENUITY
852 610 1140 447 Telus Advanced Communications
7843 608 410 245 Adelphia Corp.
7046 561 841 260 UUNET Technologies, Inc.
4323 531 472 167 Time Warner Communications, I
690 521 76 326 Merit Network
209 519 2102 328 Qwest
7066 492 204 252 Virginia Polytechnic Institut
6197 464 561 104 BellSouth Network Solutions,
18566 431 112 5 Covad Communications
705 427 133 183 UUNET Technologies, Inc.
6198 420 185 198 BellSouth Network Solutions,
4355 408 313 116 EarthLink, Inc.
3549 402 709 296 Global Crossing
15290 394 215 176 AT&T Canada IES
2386 388 445 236 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 808 2306 670 UUNET - Commercial IP service
3301 335 1141 297 TeliaNet Sweden
3215 314 803 174 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 207 400 196 SWIPnet Swedish IP Network
786 176 1873 176 The JANET IP Service
719 171 306 130 LANLINK autonomous system
5400 160 68 96 BT Ignite European Backbone
8708 156 42 146 Romania Data Systems S.A.
3303 144 517 143 Swisscom Ltd
20858 142 17 3 This AS will be used to conne
2856 130 1302 117 BTnet UK Regional network
12302 123 18 30 MobiFon S.A.
8220 122 174 113 COLT Internet - International
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 228 36 52 Telecom Argentina Stet-France
8151 207 317 113 UniNet S.A. de C.V.
11172 161 83 33 Servicios Alestra S.A de C.V
6503 157 207 107 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 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
15034 59 5 31 TIBA SA
11830 58 4 23 Instituto Costarricense de El
4926 57 4 47 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1201 694 Supernet, Inc.
7018 1419 460 AT&T
18566 431 426 Covad Communications
4323 531 364 Time Warner Communications, I
7843 608 363 Adelphia Corp.
6197 464 360 BellSouth Network Solutions,
7046 561 301 UUNET Technologies, Inc.
1221 1128 296 Telstra Pty Ltd
11492 297 296 Cable One
4355 408 292 EarthLink, Inc.
1239 964 288 Sprint
6347 365 286 SAVVIS Communications Corpora
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
705 427 244 UUNET Technologies, Inc.
7066 492 240 Virginia Polytechnic Institut
376 345 240 Reseau Interordinateurs Scien
4814 251 236 China Telecom (Group)
1 659 227 GENUITY
6198 420 222 BellSouth Network Solutions,
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 /8:18 /9:3 /10:8 /11:12 /12:44
/13:91 /14:240 /15:441 /16:7328 /17:1563 /18:2833
/19:8042 /20:7827 /21:5635 /22:8542 /23:10219 /24:65941
/25:139 /26:173 /27:89 /28:80 /29:68 /30:108
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 768 1201 Supernet, Inc.
7018 506 1419 AT&T
702 495 808 UUNET - Commercial IP service
690 470 521 Merit Network
18566 426 431 Covad Communications
701 422 1605 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
7843 379 608 Adelphia Corp.
1239 354 964 Sprint
6197 341 464 BellSouth Network Solutions,
6198 334 420 BellSouth Network Solutions,
6140 304 316 ImpSat
11492 296 297 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 255 561 UUNET Technologies, Inc.
3215 241 314 France Telecom Transpac
20115 231 350 Charter Communications
4355 227 408 EarthLink, Inc.
7303 227 228 Telecom Argentina Stet-France
209 212 519 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:636 13:1 15:6 17:3 20:7 24:791
25:1 32:82 38:37 40:18 44:1 55:1
57:16 61:428 62:465 63:1869 64:1361 65:1806
66:1374 67:202 68:225 69:35 80:352 81:100
128:125 129:188 130:23 131:72 132:9 133:4
134:156 135:7 136:216 137:112 138:208 139:68
140:120 141:103 142:97 143:44 144:149 145:16
146:255 147:130 148:267 149:78 150:42 151:94
152:258 153:37 154:7 155:104 156:49 157:60
158:120 159:139 160:24 161:57 162:132 163:83
164:278 165:139 166:85 167:303 168:390 169:57
170:289 171:8 178:1 192:5350 193:2384 194:1980
195:913 196:457 198:3575 199:3040 200:2782 202:3623
203:5022 204:3009 205:2112 206:2357 207:2413 208:2653
209:2682 210:687 211:319 212:900 213:751 214:13
215:22 216:3197 217:552 218:71 219:16 220:41
End of report
