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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 09 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131594
Prefixes after maximum aggregation: 80877
Unique aggregates announced to Internet: 63259
Total ASes present in the Internet Routing Table: 16428
Origin-only ASes present in the Internet Routing Table: 14259
Origin ASes announcing only one prefix: 6546
Transit ASes present in the Internet Routing Table: 2169
Transit-only ASes present in the Internet Routing Table: 78
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: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1276709732
Equivalent to 76 /8s, 25 /16s and 11 /24s
Percentage of available address space announced: 34.4
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 58102
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24219
Total APNIC prefixes after maximum aggregation: 13052
Prefixes being announced from the APNIC address blocks: 22702
Unique aggregates announced from the APNIC address blocks: 12867
APNIC Region origin ASes present in the Internet Routing Table: 1971
APNIC Region origin ASes announcing only one prefix: 577
APNIC Region transit ASes present in the Internet Routing Table: 311
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 133893760
Equivalent to 7 /8s, 251 /16s and 14 /24s
Percentage of available APNIC address space announced: 72.1
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: 77421
Total ARIN prefixes after maximum aggregation: 47866
Prefixes being announced from the ARIN address blocks: 59940
Unique aggregates announced from the ARIN address blocks: 20770
ARIN Region origin ASes present in the Internet Routing Table: 8834
ARIN Region origin ASes announcing only one prefix: 3100
ARIN Region transit ASes present in the Internet Routing Table: 845
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 213607328
Equivalent to 12 /8s, 187 /16s and 99 /24s
Percentage of available ARIN address space announced: 74.9
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: 23334
Total RIPE prefixes after maximum aggregation: 17110
Prefixes being announced from the RIPE address blocks: 20198
Unique aggregates announced from the RIPE address blocks: 13448
RIPE Region origin ASes present in the Internet Routing Table: 5092
RIPE Region origin ASes announcing only one prefix: 2742
RIPE Region transit ASes present in the Internet Routing Table: 891
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 148324736
Equivalent to 8 /8s, 215 /16s and 65 /24s
Percentage of available RIPE address space announced: 68.0
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: 5461
Total LACNIC prefixes after maximum aggregation: 2168
Prefixes being announced from the LACNIC address blocks: 5032
Unique aggregates announced from the LACNIC address blocks: 3098
LACNIC Region origin ASes present in the Internet Routing Table: 361
LACNIC Region origin ASes announcing only one prefix: 100
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: 13855488
Equivalent to 0 /8s, 211 /16s and 107 /24s
Percentage of available LACNIC address space announced: 41.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1154
Total AfriNIC prefixes after maximum aggregation: 681
Prefixes being announced from the AfriNIC address blocks: 733
Unique aggregates announced from the AfriNIC address blocks: 565
AfriNIC Region origin ASes present in the Internet Routing Table: 93
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: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1752064
Equivalent to 0 /8s, 26 /16s and 188 /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 909 1098 655 Telstra Pty Ltd
4134 707 2413 110 Data Communications Bureau
4766 396 2903 238 Korea Internet Exchange for "
2907 363 1847 340 SINET Japan
9443 346 69 79 Primus Telecommunications
703 338 372 262 UUNET
17557 308 22 153 Pakistan Telecom
17676 292 4300 38 XTAGE CORPORATION
2764 287 289 236 connect.com.au pty ltd
7474 268 305 212 Optus Communications Pty Ltd
4538 250 1811 21 China Education and Research
4755 222 130 58 Videsh Sanchar Nigam Ltd. Aut
9942 217 69 128 COMindico Australia
9800 212 347 59 CHINA UNICOM
9583 211 44 12 Satyam Infoway Ltd.,
9929 211 154 28 China Netcom Corp.
9498 179 22 32 BHARTI BT INTERNET LTD.
17964 153 121 62 Beijing Dian-Xin-Tong Network
17642 152 40 111 RequestDSL BGP AS# for Sydney
3786 148 752 130 DACOM Corporation
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1412 8696 972 UUNET Technologies, Inc.
7018 1412 7048 977 AT&T
1239 943 3087 660 Sprint
6197 829 483 251 BellSouth Network Solutions,
18566 766 176 8 Covad Communications
3356 732 10924 583 Level 3 Communications, LLC
209 722 3529 507 Qwest
4323 674 589 202 Time Warner Communications, I
20115 578 323 332 Charter Communications
6198 546 340 195 BellSouth Network Solutions,
7843 509 531 118 Adelphia Corp.
852 503 1124 399 Telus Advanced Communications
7066 502 207 271 Virginia Polytechnic Institut
7132 461 7398 310 Southwestern Bell Internet Se
2386 418 544 219 AT&T Data Communications Serv
19029 409 172 262 New Edge Networks
690 399 58 269 Merit Network
4355 390 323 101 EarthLink, Inc.
27364 381 28 24 Armstrong Cable Services
705 380 196 235 UUNET Technologies, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 695 2077 578 UUNET - Commercial IP service
3301 335 1159 315 TeliaNet Sweden
3320 280 1972 230 Deutsche Telekom AG
8220 266 412 251 COLT Internet - International
1257 246 505 192 SWIPnet Swedish IP Network
680 229 2022 226 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 185 424 183 Song Networks
786 175 1826 175 The JANET IP Service
5515 173 762 135 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
8708 164 111 157 Romania Data Systems S.A.
3215 147 786 68 France Telecom Transpac
3303 142 557 138 Swisscom Ltd
5400 137 224 125 BT Ignite European Backbone
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
2856 119 1294 109 BTnet UK Regional network
3269 118 940 63 TELECOM ITALIA
3352 103 892 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 120 69 ImpSat
8151 237 335 122 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 139 52 17 Telecom Argentina Stet-France
6505 132 90 92 Global One Communicaoes Ltda
6503 128 220 93 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
11340 108 3 29 Red Universitaria Nacional
15311 78 18 38 Telefonica Empresas
6535 76 5 19 Chilesat Servicios Empresari
4270 69 17 8 Red de Interconexion Universi
11664 69 6 11 Keytech SA
11992 69 25 31 Integrated Systems
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
7738 60 218 13 Telecomunicacoes da Bahia S.A
1916 59 247 39 Fundacao de Amparo a Pesquisa
14420 59 4 22 ANDINATEL S.A.
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
9129 24 3 4 UUNET Kenya
12455 24 4 2 Jambonet Autonomous system
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
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 766 758 Covad Communications
4134 707 597 Data Communications Bureau
6197 829 578 BellSouth Network Solutions,
4323 674 472 Time Warner Communications, I
7018 1412 435 AT&T
7843 509 391 Adelphia Corp.
27364 381 357 Armstrong Cable Services
6198 546 351 BellSouth Network Solutions,
22909 327 310 Comcast Cable Corporation
5668 320 304 Century Telephone
22773 327 297 Cox Communications, Inc. Atla
4355 390 289 EarthLink, Inc.
1239 943 283 Sprint
6140 350 281 ImpSat
9443 346 267 Primus Telecommunications
1221 909 254 Telstra Pty Ltd
6347 331 254 SAVVIS Communications Corpora
17676 292 254 XTAGE CORPORATION
20115 578 246 Charter Communications
376 356 242 Reseau Interordinateurs Scien
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
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 /14:279 /15:497 /16:7539 /17:1844 /18:3415
/19:8867 /20:9312 /21:6714 /22:9430 /23:11066 /24:71763
/25:184 /26:240 /27:142 /28:32 /29:6 /30:47
/31:0 /32:12
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 751 766 Covad Communications
6197 674 829 BellSouth Network Solutions,
7018 529 1412 AT&T
701 432 1412 UUNET Technologies, Inc.
702 424 695 UUNET - Commercial IP service
6198 402 546 BellSouth Network Solutions,
7066 395 502 Virginia Polytechnic Institut
27364 375 381 Armstrong Cable Services
3356 371 732 Level 3 Communications, LLC
690 361 399 Merit Network
20115 360 578 Charter Communications
1239 333 943 Sprint
5668 283 320 Century Telephone
19029 267 409 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 227 280 Deutsche Telekom AG
4766 225 396 Korea Internet Exchange for "
6386 223 249 bellsouth.net, inc.
6517 216 241 Yipes Communications, Inc.
4355 215 390 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:766 13:1 15:6 16:1 17:3
20:7 24:880 32:81 38:44 40:26 44:2
55:1 56:1 57:11 61:342 62:442 63:1829
64:1807 65:1810 66:2199 67:247 68:709 69:376
80:433 81:179 82:65 128:142 129:263 130:69
131:78 132:17 134:176 135:16 136:129 137:115
138:126 139:38 140:158 141:133 142:111 143:48
144:85 145:39 146:290 147:74 148:319 149:85
150:119 151:60 152:209 153:59 154:1 155:129
156:61 157:55 158:133 159:142 160:46 161:51
162:367 163:71 164:331 165:165 166:104 167:215
168:176 169:96 170:343 171:7 192:5523 193:2516
194:1999 195:1299 196:516 198:3621 199:2832 200:2982
201:5 202:4301 203:5339 204:3026 205:2026 206:2252
207:2588 208:2455 209:2893 210:974 211:414 212:895
213:972 214:23 215:25 216:3388 217:807 218:116
219:80 220:154 221:19 222:1
End of report
