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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 23 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119745
Prefixes after maximum aggregation: 76596
Unique aggregates announced to Internet: 57643
Total ASes present in the Internet Routing Table: 14456
Origin-only ASes present in the Internet Routing Table: 12557
Origin ASes announcing only one prefix: 5651
Transit ASes present in the Internet Routing Table: 1899
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: 17
Illegal AS announcements present in the Routing Table: 12
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: 1191385517
Equivalent to 71 /8s, 3 /16s and 25 /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: 55540
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20176
Total APNIC prefixes after maximum aggregation: 11912
Prefixes being announced from the APNIC address blocks: 18673
Unique aggregates announced from the APNIC address blocks: 11410
APNIC Region origin ASes present in the Internet Routing Table: 1718
APNIC Region origin ASes announcing only one prefix: 524
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: 104645792
Equivalent to 6 /8s, 60 /16s and 196 /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: 73907
Total ARIN prefixes after maximum aggregation: 47198
Prefixes being announced from the ARIN address blocks: 52112
Unique aggregates announced from the ARIN address blocks: 16102
ARIN Region origin ASes present in the Internet Routing Table: 8071
ARIN Region origin ASes announcing only one prefix: 2716
ARIN Region transit ASes present in the Internet Routing Table: 761
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 185675968
Equivalent to 11 /8s, 17 /16s and 48 /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: 20528
Total RIPE prefixes after maximum aggregation: 15294
Prefixes being announced from the RIPE address blocks: 17127
Unique aggregates announced from the RIPE address blocks: 11510
RIPE Region origin ASes present in the Internet Routing Table: 4282
RIPE Region origin ASes announcing only one prefix: 2330
RIPE Region transit ASes present in the Internet Routing Table: 770
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 122517060
Equivalent to 7 /8s, 77 /16s and 118 /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: 5124
Total LACNIC prefixes after maximum aggregation: 2192
Prefixes being announced from the LACNIC address blocks: 4484
Unique aggregates announced from the LACNIC address blocks: 2941
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: 70
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11856896
Equivalent to 0 /8s, 180 /16s and 236 /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 1130 1184 833 Telstra Pty Ltd
703 406 368 318 UUNET
2907 392 1976 368 SINET Japan
2764 337 341 306 connect.com.au pty ltd
17557 329 24 129 Pakistan Telecom
4134 298 2505 97 Data Communications Bureau
7474 297 276 206 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
4755 244 134 75 Videsh Sanchar Nigam Ltd. Aut
3786 237 772 204 DACOM Corporation
17676 229 3557 28 XTAGE CORPORATION
4766 201 2075 149 Korea Internet Exchange for "
9583 199 33 12 Satyam Infoway Ltd.,
9443 184 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
4713 123 1068 103 NTT Communications Corporatio
4739 123 57 113 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1609 9014 1184 UUNET Technologies, Inc.
7018 1437 7108 968 AT&T
3908 1204 1636 511 Supernet, Inc.
1239 968 3160 679 Sprint
852 680 1140 447 Telus Advanced Communications
1 660 8076 432 GENUITY
7843 591 399 233 Adelphia Corp.
7046 558 825 258 UUNET Technologies, Inc.
4323 528 472 167 Time Warner Communications, I
209 521 2102 330 Qwest
690 521 76 326 Merit Network
7066 491 204 252 Virginia Polytechnic Institut
6197 464 561 104 BellSouth Network Solutions,
18566 442 112 5 Covad Communications
705 429 133 185 UUNET Technologies, Inc.
2386 427 467 232 AT&T Data Communications Serv
6198 421 185 198 BellSouth Network Solutions,
4355 408 313 116 EarthLink, Inc.
3549 397 709 295 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
3215 313 803 174 France Telecom Transpac
3301 313 1141 299 TeliaNet Sweden
3320 256 1996 228 Deutsche Telekom AG
680 240 2166 237 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.
20858 145 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
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 314 98 105 ImpSat
7303 229 36 52 Telecom Argentina Stet-France
8151 207 317 113 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 89 2 35 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 61 11 39 Global One Colombia
11830 60 4 21 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 1204 693 Supernet, Inc.
7018 1437 469 AT&T
18566 442 437 Covad Communications
4323 528 361 Time Warner Communications, I
6197 464 360 BellSouth Network Solutions,
7843 591 358 Adelphia Corp.
7046 558 300 UUNET Technologies, Inc.
11492 299 298 Cable One
1221 1130 297 Telstra Pty Ltd
6347 373 294 SAVVIS Communications Corpora
4355 408 292 EarthLink, Inc.
1239 968 289 Sprint
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
4814 261 246 China Telecom (Group)
705 429 244 UUNET Technologies, Inc.
376 345 241 Reseau Interordinateurs Scien
7066 491 239 Virginia Polytechnic Institut
852 680 233 Telus Advanced Communications
1 660 228 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
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
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 /15:443 /16:7331 /17:1559 /18:2836
/19:8041 /20:7846 /21:5658 /22:8568 /23:10264 /24:66085
/25:142 /26:174 /27:91 /28:77 /29:62 /30:108
/31:0 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 771 1204 Supernet, Inc.
7018 520 1437 AT&T
702 495 808 UUNET - Commercial IP service
690 470 521 Merit Network
18566 437 442 Covad Communications
701 424 1609 UUNET Technologies, Inc.
7066 390 491 Virginia Polytechnic Institut
7843 362 591 Adelphia Corp.
1239 355 968 Sprint
6197 341 464 BellSouth Network Solutions,
6198 335 421 BellSouth Network Solutions,
6140 302 314 ImpSat
11492 298 299 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 254 558 UUNET Technologies, Inc.
3215 240 313 France Telecom Transpac
20115 230 350 Charter Communications
2386 228 427 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)
----------------------------------------------
12:637 13:1 15:6 17:3 20:7 24:792
25:1 32:82 34:1 38:37 40:18 44:1
55:1 57:16 61:441 62:479 63:1886 64:1354
65:1818 66:1383 67:203 68:224 69:37 80:325
81:83 128:129 129:188 130:22 131:73 132:11
133:4 134:157 135:7 136:206 137:113 138:208
139:68 140:123 141:103 142:95 143:44 144:151
145:16 146:255 147:123 148:266 149:78 150:42
151:94 152:259 153:40 154:7 155:105 156:49
157:63 158:120 159:136 160:29 161:57 162:132
163:81 164:275 165:137 166:85 167:303 168:391
169:57 170:291 171:8 178:1 192:5361 193:2402
194:1969 195:902 196:456 198:3586 199:3034 200:2790
202:3645 203:5028 204:3022 205:2109 206:2355 207:2430
208:2668 209:2739 210:700 211:322 212:899 213:706
214:15 215:23 216:3197 217:558 218:71 219:16
220:44
End of report
