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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 16 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131772
Prefixes after maximum aggregation: 81046
Unique aggregates announced to Internet: 63529
Total ASes present in the Internet Routing Table: 16475
Origin-only ASes present in the Internet Routing Table: 14298
Origin ASes announcing only one prefix: 6577
Transit ASes present in the Internet Routing Table: 2177
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 30
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1278517860
Equivalent to 76 /8s, 52 /16s and 162 /24s
Percentage of available address space announced: 34.5
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 58045
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24423
Total APNIC prefixes after maximum aggregation: 13077
Prefixes being announced from the APNIC address blocks: 22905
Unique aggregates announced from the APNIC address blocks: 12935
APNIC Region origin ASes present in the Internet Routing Table: 1972
APNIC Region origin ASes announcing only one prefix: 582
APNIC Region transit ASes present in the Internet Routing Table: 313
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 134247808
Equivalent to 8 /8s, 0 /16s and 117 /24s
Percentage of available APNIC address space announced: 72.3
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: 77234
Total ARIN prefixes after maximum aggregation: 47931
Prefixes being announced from the ARIN address blocks: 59769
Unique aggregates announced from the ARIN address blocks: 20865
ARIN Region origin ASes present in the Internet Routing Table: 8857
ARIN Region origin ASes announcing only one prefix: 3113
ARIN Region transit ASes present in the Internet Routing Table: 843
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 214176160
Equivalent to 12 /8s, 196 /16s and 17 /24s
Percentage of available ARIN address space announced: 75.1
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
31744 - 32767
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: 23540
Total RIPE prefixes after maximum aggregation: 17155
Prefixes being announced from the RIPE address blocks: 20386
Unique aggregates announced from the RIPE address blocks: 13511
RIPE Region origin ASes present in the Internet Routing Table: 5114
RIPE Region origin ASes announcing only one prefix: 2748
RIPE Region transit ASes present in the Internet Routing Table: 896
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 148960640
Equivalent to 8 /8s, 224 /16s and 245 /24s
Percentage of available RIPE address space announced: 68.3
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, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5423
Total LACNIC prefixes after maximum aggregation: 2207
Prefixes being announced from the LACNIC address blocks: 5014
Unique aggregates announced from the LACNIC address blocks: 3134
LACNIC Region origin ASes present in the Internet Routing Table: 368
LACNIC Region origin ASes announcing only one prefix: 107
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13957120
Equivalent to 0 /8s, 212 /16s and 248 /24s
Percentage of available LACNIC address space announced: 41.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1146
Total AfriNIC prefixes after maximum aggregation: 676
Prefixes being announced from the AfriNIC address blocks: 735
Unique aggregates announced from the AfriNIC address blocks: 567
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 27
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1758208
Equivalent to 0 /8s, 26 /16s and 212 /24s
Percentage of available AfriNIC address space announced: 10.5
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 905 1097 651 Telstra Pty Ltd
4134 695 2413 110 Data Communications Bureau
4766 406 2904 239 Korea Internet Exchange for "
2907 362 1847 339 SINET Japan
9443 344 69 79 Primus Telecommunications
703 338 372 262 UUNET
17557 312 22 152 Pakistan Telecom
9583 294 44 11 Satyam Infoway Ltd.,
17676 293 4316 39 XTAGE CORPORATION
2764 287 289 236 connect.com.au pty ltd
7474 272 306 214 Optus Communications Pty Ltd
4538 249 1811 21 China Education and Research
4755 221 130 58 Videsh Sanchar Nigam Ltd. Aut
9942 218 69 128 COMindico Australia
9800 214 347 55 CHINA UNICOM
9929 214 153 28 China Netcom Corp.
9498 182 30 33 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
17964 153 117 58 Beijing Dian-Xin-Tong Network
7633 147 23 40 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1405 8678 972 UUNET Technologies, Inc.
7018 1397 7032 972 AT&T
1239 945 3090 661 Sprint
6197 775 483 251 BellSouth Network Solutions,
3356 739 10924 591 Level 3 Communications, LLC
209 720 3530 504 Qwest
18566 681 176 8 Covad Communications
4323 673 589 202 Time Warner Communications, I
20115 580 328 332 Charter Communications
6198 547 346 198 BellSouth Network Solutions,
7843 510 551 122 Adelphia Corp.
852 505 1124 401 Telus Advanced Communications
7066 503 207 271 Virginia Polytechnic Institut
7132 453 7402 311 Southwestern Bell Internet Se
2386 418 544 219 AT&T Data Communications Serv
19029 403 171 258 New Edge Networks
690 398 58 268 Merit Network
4355 390 323 101 EarthLink, Inc.
376 383 359 114 Reseau Interordinateurs Scien
705 379 196 234 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 690 2076 573 UUNET - Commercial IP service
3301 335 1159 316 TeliaNet Sweden
3320 282 1972 232 Deutsche Telekom AG
8220 268 410 253 COLT Internet - International
1257 243 504 189 SWIPnet Swedish IP Network
680 241 2027 237 DFN-IP service G-WiN
719 234 288 104 LANLINK autonomous system
13083 215 51 8 Mannesmann Datenverarbeitung
3246 189 425 187 Song Networks
786 175 1826 175 The JANET IP Service
5515 172 762 134 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
8708 165 111 157 Romania Data Systems S.A.
3215 150 786 68 France Telecom Transpac
3303 138 557 138 Swisscom Ltd
5400 136 224 126 BT Ignite European Backbone
12302 126 18 33 MobiFon S.A.
3269 120 972 64 TELECOM ITALIA
2856 119 1294 109 BTnet UK Regional network
3352 103 892 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 353 121 71 ImpSat
8151 238 336 123 UniNet S.A. de C.V.
11172 198 77 44 Servicios Alestra S.A de C.V
16814 155 10 5 NSS, S.A.
7303 142 52 19 Telecom Argentina Stet-France
6505 133 90 93 Global One Communicaoes Ltda
6503 127 220 92 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
11340 110 3 31 Red Universitaria Nacional
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11311 68 7 22 Sinectis S.A.
11992 68 25 32 Integrated Systems
7080 64 4 1 Electronica y Comunicaciones
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
14420 60 4 24 ANDINATEL S.A.
1916 59 247 39 Fundacao de Amparo a Pesquisa
7738 59 218 13 Telecomunicacoes da Bahia S.A
10292 59 5 26 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 218 The Internet Solution
5536 103 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 58 6 3 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 33 2 1 ARN Network
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
9129 22 3 4 UUNET Kenya
12455 22 4 2 Jambonet Autonomous system
8524 18 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
2609 12 10 3 Tunisia BackBone AS
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 681 673 Covad Communications
4134 695 585 Data Communications Bureau
6197 775 524 BellSouth Network Solutions,
4323 673 471 Time Warner Communications, I
7018 1397 425 AT&T
7843 510 388 Adelphia Corp.
27364 378 355 Armstrong Cable Services
6198 547 349 BellSouth Network Solutions,
22909 328 311 Comcast Cable Corporation
5668 321 305 Century Telephone
22773 331 301 Cox Communications, Inc. Atla
4355 390 289 EarthLink, Inc.
1239 945 284 Sprint
9583 294 283 Satyam Infoway Ltd.,
6140 353 282 ImpSat
376 383 269 Reseau Interordinateurs Scien
9443 344 265 Primus Telecommunications
1221 905 254 Telstra Pty Ltd
17676 293 254 XTAGE CORPORATION
6347 330 253 SAVVIS Communications Corpora
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D
65531 PRIVATE 203.115.82.0/23 23682 Broadband Pacenet In
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
23861 UNALLOCATED 210.93.46.0/24 4766 Korea Internet Excha
23861 UNALLOCATED 210.93.47.0/24 4766 Korea Internet Excha
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
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 568 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 /11:15 /12:57
/13:104 /14:281 /15:496 /16:7549 /17:1839 /18:3441
/19:8904 /20:9356 /21:6710 /22:9442 /23:11006 /24:71795
/25:190 /26:298 /27:170 /28:31 /29:5 /30:43
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 665 681 Covad Communications
6197 619 775 BellSouth Network Solutions,
7018 517 1397 AT&T
701 423 1405 UUNET Technologies, Inc.
702 421 690 UUNET - Commercial IP service
6198 400 547 BellSouth Network Solutions,
7066 397 503 Virginia Polytechnic Institut
3356 372 739 Level 3 Communications, LLC
27364 372 378 Armstrong Cable Services
690 361 398 Merit Network
20115 360 580 Charter Communications
1239 332 945 Sprint
5668 284 321 Century Telephone
19029 263 403 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 233 406 Korea Internet Exchange for "
3320 229 282 Deutsche Telekom AG
6386 220 246 bellsouth.net, inc.
6517 219 243 Yipes Communications, Inc.
4355 215 390 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:758 13:1 15:6 16:1 17:3
20:7 24:878 32:81 38:45 40:26 44:2
55:1 56:1 57:13 61:344 62:453 63:1825
64:1801 65:1816 66:2147 67:257 68:667 69:363
80:453 81:189 82:62 128:143 129:261 130:69
131:78 132:17 134:175 135:16 136:128 137:115
138:126 139:39 140:158 141:132 142:102 143:48
144:85 145:39 146:289 147:74 148:319 149:84
150:119 151:61 152:212 153:61 154:1 155:131
156:61 157:55 158:134 159:143 160:46 161:51
162:369 163:69 164:332 165:167 166:104 167:216
168:176 169:96 170:304 171:7 192:5535 193:2519
194:2003 195:1290 196:516 198:3632 199:2828 200:2966
201:5 202:4354 203:5375 204:3028 205:2023 206:2277
207:2590 208:2433 209:2893 210:1021 211:419 212:889
213:995 214:23 215:25 216:3361 217:803 218:118
219:83 220:156 221:19 222:1
End of report
