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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 29 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119875
Prefixes after maximum aggregation: 76667
Unique aggregates announced to Internet: 57791
Total ASes present in the Internet Routing Table: 14477
Origin-only ASes present in the Internet Routing Table: 12583
Origin ASes announcing only one prefix: 5664
Transit ASes present in the Internet Routing Table: 1894
Transit-only ASes present in the Internet Routing Table: 57
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: 26
Number of addresses announced to Internet: 1191710313
Equivalent to 71 /8s, 8 /16s and 14 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 55487
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20309
Total APNIC prefixes after maximum aggregation: 11964
Prefixes being announced from the APNIC address blocks: 18808
Unique aggregates announced from the APNIC address blocks: 11492
APNIC Region origin ASes present in the Internet Routing Table: 1718
APNIC Region origin ASes announcing only one prefix: 519
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: 15
Number of APNIC addresses announced to Internet: 104710816
Equivalent to 6 /8s, 61 /16s and 194 /24s
Percentage of available APNIC address space announced: 68.9
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: 73875
Total ARIN prefixes after maximum aggregation: 47268
Prefixes being announced from the ARIN address blocks: 52339
Unique aggregates announced from the ARIN address blocks: 16137
ARIN Region origin ASes present in the Internet Routing Table: 8083
ARIN Region origin ASes announcing only one prefix: 2718
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: 186046144
Equivalent to 11 /8s, 22 /16s and 214 /24s
Percentage of available ARIN address space announced: 69.3
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: 20485
Total RIPE prefixes after maximum aggregation: 15251
Prefixes being announced from the RIPE address blocks: 17112
Unique aggregates announced from the RIPE address blocks: 11496
RIPE Region origin ASes present in the Internet Routing Table: 4295
RIPE Region origin ASes announcing only one prefix: 2343
RIPE Region transit ASes present in the Internet Routing Table: 775
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 122750144
Equivalent to 7 /8s, 81 /16s and 4 /24s
Percentage of available RIPE address space announced: 73.2
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, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5196
Total LACNIC prefixes after maximum aggregation: 2184
Prefixes being announced from the LACNIC address blocks: 4543
Unique aggregates announced from the LACNIC address blocks: 3004
LACNIC Region origin ASes present in the Internet Routing Table: 326
LACNIC Region origin ASes announcing only one prefix: 84
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: 10
Number of LACNIC addresses announced to Internet: 11945472
Equivalent to 0 /8s, 182 /16s and 70 /24s
Percentage of available LACNIC address space announced: 71.2
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 1185 829 Telstra Pty Ltd
703 406 368 318 UUNET
2907 391 1975 367 SINET Japan
2764 336 340 305 connect.com.au pty ltd
17557 325 24 136 Pakistan Telecom
4134 298 2505 97 Data Communications Bureau
7474 297 277 207 Optus Communications Pty Ltd
4814 261 79 15 China Telecom (Group)
4755 243 133 75 Videsh Sanchar Nigam Ltd. Aut
3786 239 772 205 DACOM Corporation
17676 229 3557 28 XTAGE CORPORATION
9583 208 33 12 Satyam Infoway Ltd.,
4766 197 2074 146 Korea Internet Exchange for "
9443 182 57 77 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 148 9 13 World Net & Services Co., Ltd
9768 130 384 64 Korea Telecom
4716 129 737 123 TTnet
9238 129 7 19 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 1602 8999 1180 UUNET Technologies, Inc.
7018 1438 7108 967 AT&T
3908 1190 1619 501 Supernet, Inc.
1239 961 3127 675 Sprint
852 681 1124 446 Telus Advanced Communications
1 665 8044 431 GENUITY
7843 592 399 225 Adelphia Corp.
7046 554 826 254 UUNET Technologies, Inc.
4323 528 472 168 Time Warner Communications, I
209 525 2103 334 Qwest
690 521 76 326 Merit Network
7066 493 204 253 Virginia Polytechnic Institut
6197 469 554 109 BellSouth Network Solutions,
18566 449 114 7 Covad Communications
705 430 133 186 UUNET Technologies, Inc.
2386 421 466 227 AT&T Data Communications Serv
6198 421 185 198 BellSouth Network Solutions,
4355 410 313 115 EarthLink, Inc.
15290 393 215 176 AT&T Canada IES
3549 392 691 291 Global Crossing
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 792 2288 666 UUNET - Commercial IP service
3301 312 1141 298 TeliaNet Sweden
3215 310 802 171 France Telecom Transpac
3320 254 1995 227 Deutsche Telekom AG
680 240 2166 237 DFN-IP service G-WiN
5515 214 783 175 Sonera Solution Autonomous Sy
1257 207 400 196 SWIPnet Swedish IP Network
786 177 1873 177 The JANET IP Service
719 173 306 130 LANLINK autonomous system
5400 159 68 96 BT Ignite European Backbone
8708 155 42 146 Romania Data Systems S.A.
20858 146 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
2856 130 1302 117 BTnet UK Regional network
8220 124 174 115 COLT Internet - International
12302 123 18 30 MobiFon S.A.
3246 119 378 116 Song Networks
3269 112 753 62 TELECOM ITALIA
5511 105 193 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
7303 227 36 54 Telecom Argentina Stet-France
8151 209 333 115 UniNet S.A. de C.V.
11172 156 81 32 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.
11340 112 3 41 Red Universitaria Nacional
10620 102 6 31 TVCABLE BOGOTA
6147 76 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
11992 69 7 30 Integrated Systems
4270 67 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
7080 64 4 1 Electronica y Comunicaciones
7984 60 11 39 Global One Colombia
11830 60 4 21 Instituto Costarricense de El
15034 60 5 31 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1190 689 Supernet, Inc.
7018 1438 471 AT&T
18566 449 442 Covad Communications
7843 592 367 Adelphia Corp.
4323 528 360 Time Warner Communications, I
6197 469 360 BellSouth Network Solutions,
1221 1130 301 Telstra Pty Ltd
7046 554 300 UUNET Technologies, Inc.
11492 300 299 Cable One
4355 410 295 EarthLink, Inc.
6347 373 294 SAVVIS Communications Corpora
1239 961 286 Sprint
4151 328 268 USDA
22927 289 267 TELEFONICA DE ARGENTINA
4814 261 246 China Telecom (Group)
705 430 244 UUNET Technologies, Inc.
376 346 241 Reseau Interordinateurs Scien
7066 493 240 Virginia Polytechnic Institut
852 681 235 Telus Advanced Communications
1 665 234 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
172.0.193.128/26 3549 Global Crossing
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
192.243.36.0/23 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 /15:442 /16:7331 /17:1571 /18:2848
/19:8046 /20:7876 /21:5686 /22:8609 /23:10305 /24:66038
/25:162 /26:173 /27:93 /28:77 /29:62 /30:97
/31:2 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 769 1190 Supernet, Inc.
7018 521 1438 AT&T
702 484 792 UUNET - Commercial IP service
690 470 521 Merit Network
18566 444 449 Covad Communications
701 425 1602 UUNET Technologies, Inc.
7066 392 493 Virginia Polytechnic Institut
7843 363 592 Adelphia Corp.
1239 355 961 Sprint
6197 347 469 BellSouth Network Solutions,
6198 335 421 BellSouth Network Solutions,
6140 305 317 ImpSat
11492 299 300 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 252 554 UUNET Technologies, Inc.
3215 237 310 France Telecom Transpac
4355 230 410 EarthLink, Inc.
20115 230 352 Charter Communications
7303 226 227 Telecom Argentina Stet-France
2386 224 421 AT&T Data Communications Serv
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:638 13:1 15:6 17:2 20:7 24:793
25:1 32:82 34:1 38:38 40:19 44:1
55:1 57:15 61:472 62:483 63:1888 64:1375
65:1820 66:1395 67:205 68:233 69:36 80:311
81:78 128:129 129:185 130:22 131:72 132:11
133:4 134:145 135:7 136:194 137:112 138:101
139:68 140:121 141:103 142:96 143:44 144:75
145:16 146:263 147:85 148:263 149:75 150:42
151:94 152:258 153:41 154:7 155:105 156:41
157:56 158:119 159:136 160:29 161:57 162:135
163:81 164:276 165:138 166:85 167:304 168:392
169:56 170:288 171:8 192:5349 193:2388 194:1928
195:908 196:457 198:3592 199:3038 200:2848 202:3647
203:5069 204:3022 205:2117 206:2358 207:2428 208:2685
209:2760 210:705 211:318 212:931 213:709 214:19
215:22 216:3211 217:557 218:72 219:16 220:44
End of report
