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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 07 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130069
Prefixes after maximum aggregation: 80697
Unique aggregates announced to Internet: 62242
Total ASes present in the Internet Routing Table: 16161
Origin-only ASes present in the Internet Routing Table: 14024
Origin ASes announcing only one prefix: 6399
Transit ASes present in the Internet Routing Table: 2137
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 21
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1254378628
Equivalent to 74 /8s, 196 /16s and 76 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.5
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57610
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23423
Total APNIC prefixes after maximum aggregation: 12941
Prefixes being announced from the APNIC address blocks: 21812
Unique aggregates announced from the APNIC address blocks: 12550
APNIC Region origin ASes present in the Internet Routing Table: 1946
APNIC Region origin ASes announcing only one prefix: 578
APNIC Region transit ASes present in the Internet Routing Table: 312
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 125042176
Equivalent to 7 /8s, 115 /16s and 254 /24s
Percentage of available APNIC address space announced: 67.4
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76965
Total ARIN prefixes after maximum aggregation: 47984
Prefixes being announced from the ARIN address blocks: 59615
Unique aggregates announced from the ARIN address blocks: 20451
ARIN Region origin ASes present in the Internet Routing Table: 8736
ARIN Region origin ASes announcing only one prefix: 3028
ARIN Region transit ASes present in the Internet Routing Table: 838
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 208572832
Equivalent to 12 /8s, 110 /16s and 145 /24s
Percentage of available ARIN address space announced: 73.1
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, 29695 - 30719
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23000
Total RIPE prefixes after maximum aggregation: 16815
Prefixes being announced from the RIPE address blocks: 19878
Unique aggregates announced from the RIPE address blocks: 13113
RIPE Region origin ASes present in the Internet Routing Table: 4949
RIPE Region origin ASes announcing only one prefix: 2658
RIPE Region transit ASes present in the Internet Routing Table: 874
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 140765440
Equivalent to 8 /8s, 99 /16s and 233 /24s
Percentage of available RIPE address space announced: 76.3
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
30720 - 31743
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: 5571
Total LACNIC prefixes after maximum aggregation: 2251
Prefixes being announced from the LACNIC address blocks: 5090
Unique aggregates announced from the LACNIC address blocks: 3196
LACNIC Region origin ASes present in the Internet Routing Table: 359
LACNIC Region origin ASes announcing only one prefix: 104
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13467392
Equivalent to 0 /8s, 205 /16s and 127 /24s
Percentage of available LACNIC address space announced: 40.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1109
Total AfriNIC prefixes after maximum aggregation: 706
Prefixes being announced from the AfriNIC address blocks: 717
Unique aggregates announced from the AfriNIC address blocks: 553
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1748736
Equivalent to 0 /8s, 26 /16s and 175 /24s
Percentage of available AfriNIC address space announced: 10.4
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 953 1108 677 Telstra Pty Ltd
4755 390 134 69 Videsh Sanchar Nigam Ltd. Aut
4134 371 2371 109 Data Communications Bureau
2907 368 1879 345 SINET Japan
703 331 356 264 UUNET
17557 297 21 149 Pakistan Telecom
2764 292 288 251 connect.com.au pty ltd
17676 280 4140 31 XTAGE CORPORATION
7474 266 306 212 Optus Communications Pty Ltd
4766 257 2463 184 Korea Internet Exchange for "
9583 249 44 11 Satyam Infoway Ltd.,
9443 235 72 83 Primus Telecommunications
3786 233 773 203 DACOM Corporation
4538 215 1714 21 China Education and Research
9800 207 343 57 CHINA UNICOM
9498 205 22 29 BHARTI BT INTERNET LTD.
9942 204 70 118 COMindico Australia
9929 192 163 36 China Netcom Corp.
17642 156 40 115 RequestDSL BGP AS# for Sydney
4739 146 60 135 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1416 8649 991 UUNET Technologies, Inc.
7018 1368 7035 948 AT&T
209 1095 3471 529 Qwest
1239 922 3053 666 Sprint
18566 720 176 8 Covad Communications
6197 666 403 272 BellSouth Network Solutions,
4323 655 591 189 Time Warner Communications, I
3356 617 10803 507 Level 3 Communications, LLC
6198 575 328 196 BellSouth Network Solutions,
20115 539 278 305 Charter Communications
7843 522 484 120 Adelphia Corp.
852 514 1107 407 Telus Advanced Communications
7066 510 207 271 Virginia Polytechnic Institut
7132 499 7191 297 Southwestern Bell Internet Se
19029 418 174 273 New Edge Networks
690 410 59 275 Merit Network
4355 400 331 107 EarthLink, Inc.
2386 397 558 204 AT&T Data Communications Serv
705 395 183 239 UUNET Technologies, Inc.
376 360 359 115 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 695 2092 576 UUNET - Commercial IP service
3301 310 1169 288 TeliaNet Sweden
3320 278 2004 235 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 239 455 190 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 187 174 136 BT Ignite European Backbone
5515 179 778 141 Sonera Solution Autonomous Sy
786 174 1825 174 The JANET IP Service
3215 173 703 83 France Telecom Transpac
8708 160 111 154 Romania Data Systems S.A.
3303 145 557 139 Swisscom Ltd
25186 142 165 102 France Telecom Transpac's Tra
719 136 288 105 LANLINK autonomous system
6664 134 11 99 TELECOM ITALIA
3246 126 378 124 Song Networks
12302 126 18 33 MobiFon S.A.
3269 118 911 65 TELECOM ITALIA
2856 117 1294 108 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 340 105 101 ImpSat
8151 234 351 126 UniNet S.A. de C.V.
7303 196 42 48 Telecom Argentina Stet-France
11172 192 77 42 Servicios Alestra S.A de C.V
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 127 205 91 AVANTEL, S.A.
6147 122 70 19 Telefonica Del Peru
10620 122 8 26 TVCABLE BOGOTA
11340 106 3 29 Red Universitaria Nacional
11992 87 24 32 Integrated Systems
8065 80 10 17 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
4270 68 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14535 61 6 6 Techtel S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 262 39 Fundacao de Amparo a Pesquisa
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 250 632 219 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 56 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
12455 26 4 2 Jambonet Autonomous system
5713 24 93 22 Telkom SA Ltd
9129 24 3 4 UUNET Kenya
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
15706 15 2 5 Sudatel Internet Exchange Aut
3208 14 2 1 ARN Network
12258 14 3 9 Vodacom Internet Company
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 720 712 Covad Communications
209 1095 566 Qwest
4323 655 466 Time Warner Communications, I
7018 1368 420 AT&T
7843 522 402 Adelphia Corp.
6197 666 394 BellSouth Network Solutions,
6198 575 379 BellSouth Network Solutions,
4755 390 321 Videsh Sanchar Nigam Ltd. Aut
27364 338 315 Armstrong Cable Services
4355 400 293 EarthLink, Inc.
5668 309 292 Century Telephone
22909 307 286 Comcast Cable Corporation
22773 299 280 Cox Communications, Inc. Atla
1221 953 276 Telstra Pty Ltd
6347 346 266 SAVVIS Communications Corpora
4134 371 262 Data Communications Bureau
1239 922 256 Sprint
17676 280 249 XTAGE CORPORATION
376 360 245 Reseau Interordinateurs Scien
25844 244 242 Skadden, Arps, Slate, Meagher
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.153.136.0/21 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:4 /10:6 /11:13 /12:57
/13:96 /14:271 /15:470 /16:7453 /17:1798 /18:3236
/19:8628 /20:9151 /21:6673 /22:9493 /23:10860 /24:71065
/25:175 /26:245 /27:170 /28:72 /29:23 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 714 720 Covad Communications
6197 523 666 BellSouth Network Solutions,
7018 493 1368 AT&T
209 451 1095 Qwest
6198 442 575 BellSouth Network Solutions,
701 426 1416 UUNET Technologies, Inc.
702 416 695 UUNET - Commercial IP service
7066 402 510 Virginia Polytechnic Institut
690 371 410 Merit Network
20115 347 539 Charter Communications
27364 332 338 Armstrong Cable Services
1239 329 922 Sprint
3356 308 617 Level 3 Communications, LLC
5668 275 309 Century Telephone
19029 269 418 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4355 221 400 EarthLink, Inc.
3320 220 278 Deutsche Telekom AG
6517 215 239 Yipes Communications, Inc.
14824 200 225 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:747 13:1 15:6 16:1 17:2
20:7 24:847 25:1 32:82 38:42 40:23
43:1 44:2 55:1 56:2 57:14 61:333
62:461 63:1837 64:1795 65:1798 66:2183 67:274
68:416 69:312 80:435 81:158 82:69 128:152
129:158 130:66 131:83 132:17 134:173 135:10
136:183 137:121 138:132 139:48 140:195 141:138
142:102 143:46 144:59 145:36 146:283 147:67
148:305 149:81 150:121 151:78 152:213 153:59
154:1 155:130 156:65 157:59 158:140 159:140
160:46 161:53 162:364 163:68 164:324 165:155
166:107 167:311 168:179 169:96 170:324 171:9
192:5453 193:2419 194:2044 195:1341 196:510 198:3614
199:2856 200:3047 201:3 202:4174 203:5368 204:2930
205:1995 206:2271 207:2603 208:2515 209:2818 210:947
211:395 212:940 213:962 214:17 215:25 216:3347
217:780 218:114 219:92 220:115 221:20 222:1
End of report
