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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 03 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130873
Prefixes after maximum aggregation: 80623
Unique aggregates announced to Internet: 62707
Total ASes present in the Internet Routing Table: 16262
Origin-only ASes present in the Internet Routing Table: 14114
Origin ASes announcing only one prefix: 6471
Transit ASes present in the Internet Routing Table: 2148
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1266811364
Equivalent to 75 /8s, 130 /16s and 1 /24s
Percentage of available address space announced: 34.2
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57865
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23871
Total APNIC prefixes after maximum aggregation: 12978
Prefixes being announced from the APNIC address blocks: 22258
Unique aggregates announced from the APNIC address blocks: 12625
APNIC Region origin ASes present in the Internet Routing Table: 1952
APNIC Region origin ASes announcing only one prefix: 576
APNIC Region transit ASes present in the Internet Routing Table: 310
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 131366400
Equivalent to 7 /8s, 212 /16s and 126 /24s
Percentage of available APNIC address space announced: 70.8
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: 77195
Total ARIN prefixes after maximum aggregation: 47841
Prefixes being announced from the ARIN address blocks: 59846
Unique aggregates announced from the ARIN address blocks: 20718
ARIN Region origin ASes present in the Internet Routing Table: 8775
ARIN Region origin ASes announcing only one prefix: 3070
ARIN Region transit ASes present in the Internet Routing Table: 834
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 211355552
Equivalent to 12 /8s, 153 /16s and 7 /24s
Percentage of available ARIN address space announced: 74.1
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: 23094
Total RIPE prefixes after maximum aggregation: 16892
Prefixes being announced from the RIPE address blocks: 19950
Unique aggregates announced from the RIPE address blocks: 13278
RIPE Region origin ASes present in the Internet Routing Table: 5005
RIPE Region origin ASes announcing only one prefix: 2690
RIPE Region transit ASes present in the Internet Routing Table: 891
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 143451008
Equivalent to 8 /8s, 140 /16s and 227 /24s
Percentage of available RIPE address space announced: 65.8
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: 5594
Total LACNIC prefixes after maximum aggregation: 2210
Prefixes being announced from the LACNIC address blocks: 5091
Unique aggregates announced from the LACNIC address blocks: 3100
LACNIC Region origin ASes present in the Internet Routing Table: 365
LACNIC Region origin ASes announcing only one prefix: 107
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13523200
Equivalent to 0 /8s, 206 /16s and 89 /24s
Percentage of available LACNIC address space announced: 40.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1117
Total AfriNIC prefixes after maximum aggregation: 702
Prefixes being announced from the AfriNIC address blocks: 725
Unique aggregates announced from the AfriNIC address blocks: 557
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1757440
Equivalent to 0 /8s, 26 /16s and 209 /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 957 1119 678 Telstra Pty Ltd
4134 477 2464 113 Data Communications Bureau
2907 365 1863 342 SINET Japan
4755 342 131 59 Videsh Sanchar Nigam Ltd. Aut
9443 340 71 81 Primus Telecommunications
703 327 356 259 UUNET
17557 302 22 155 Pakistan Telecom
17676 284 4204 34 XTAGE CORPORATION
2764 276 287 236 connect.com.au pty ltd
4766 264 2896 191 Korea Internet Exchange for "
7474 261 306 212 Optus Communications Pty Ltd
4538 248 1778 22 China Education and Research
3786 234 773 203 DACOM Corporation
9583 230 44 11 Satyam Infoway Ltd.,
9929 220 172 29 China Netcom Corp.
9942 212 69 123 COMindico Australia
9800 208 345 58 CHINA UNICOM
9498 173 22 31 BHARTI BT INTERNET LTD.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4739 143 60 132 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1427 8665 983 UUNET Technologies, Inc.
7018 1383 7003 956 AT&T
1239 948 3092 665 Sprint
209 861 3445 535 Qwest
6197 768 438 214 BellSouth Network Solutions,
18566 729 176 8 Covad Communications
3356 713 10891 566 Level 3 Communications, LLC
4323 679 608 206 Time Warner Communications, I
6198 614 374 226 BellSouth Network Solutions,
20115 580 319 331 Charter Communications
7843 519 504 122 Adelphia Corp.
7066 511 207 271 Virginia Polytechnic Institut
852 505 1123 406 Telus Advanced Communications
7132 449 7309 312 Southwestern Bell Internet Se
19029 431 174 279 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 329 101 EarthLink, Inc.
705 385 196 240 UUNET Technologies, Inc.
376 357 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 688 2091 570 UUNET - Commercial IP service
3301 302 1154 286 TeliaNet Sweden
3320 277 1988 230 Deutsche Telekom AG
8220 257 420 246 COLT Internet - International
1257 237 455 188 SWIPnet Swedish IP Network
680 232 2038 228 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 186 440 184 Song Networks
25186 176 215 125 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
5400 174 175 140 BT Ignite European Backbone
8708 161 111 156 Romania Data Systems S.A.
3215 148 722 73 France Telecom Transpac
3303 143 541 137 Swisscom Ltd
719 133 288 103 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 120 943 65 TELECOM ITALIA
2856 118 1294 109 BTnet UK Regional network
6746 107 16 77 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 344 120 66 ImpSat
8151 240 352 130 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 184 44 17 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 129 204 95 AVANTEL, S.A.
6147 125 78 20 Telefonica Del Peru
10620 123 8 27 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
11992 86 25 32 Integrated Systems
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
8065 75 10 19 Empresas Publicas de Medellin
4270 71 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14420 62 4 21 ANDINATEL S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 247 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 87 7 26 Internet Egypt Network
2905 60 245 53 The Internetworking Company o
2561 55 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
9129 26 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 23 4 2 Jambonet Autonomous system
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
3208 16 2 1 ARN Network
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
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 729 721 Covad Communications
6197 768 554 BellSouth Network Solutions,
4323 679 473 Time Warner Communications, I
7018 1383 427 AT&T
7843 519 397 Adelphia Corp.
6198 614 388 BellSouth Network Solutions,
4134 477 364 Data Communications Bureau
27364 354 330 Armstrong Cable Services
209 861 326 Qwest
22909 317 306 Comcast Cable Corporation
5668 311 292 Century Telephone
4355 390 289 EarthLink, Inc.
22773 313 285 Cox Communications, Inc. Atla
1239 948 283 Sprint
4755 342 283 Videsh Sanchar Nigam Ltd. Aut
1221 957 279 Telstra Pty Ltd
6140 344 278 ImpSat
9443 340 259 Primus Telecommunications
6347 332 253 SAVVIS Communications Corpora
17676 284 250 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
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
192.172.0.0/19 568 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 /11:14 /12:57
/13:100 /14:277 /15:483 /16:7506 /17:1829 /18:3334
/19:8716 /20:9249 /21:6656 /22:9386 /23:10943 /24:71541
/25:182 /26:233 /27:156 /28:70 /29:21 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 723 729 Covad Communications
6197 622 768 BellSouth Network Solutions,
7018 508 1383 AT&T
6198 475 614 BellSouth Network Solutions,
701 434 1427 UUNET Technologies, Inc.
702 415 688 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
3356 365 713 Level 3 Communications, LLC
20115 363 580 Charter Communications
690 361 400 Merit Network
27364 348 354 Armstrong Cable Services
1239 330 948 Sprint
209 296 861 Qwest
19029 281 431 New Edge Networks
5668 277 311 Century Telephone
25844 244 244 Skadden, Arps, Slate, Meagher
3320 219 277 Deutsche Telekom AG
4355 216 390 EarthLink, Inc.
6517 215 240 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:757 13:1 15:6 16:1 17:3
20:7 24:872 32:82 38:44 40:23 43:1
44:2 55:1 56:1 57:12 61:333 62:450
63:1839 64:1818 65:1809 66:2232 67:281 68:638
69:349 80:441 81:164 82:37 128:149 129:258
130:68 131:81 132:17 134:186 135:16 136:181
137:112 138:119 139:46 140:168 141:140 142:110
143:47 144:63 145:41 146:289 147:71 148:315
149:86 150:118 151:60 152:208 153:56 154:1
155:128 156:60 157:61 158:137 159:137 160:46
161:49 162:365 163:74 164:333 165:172 166:104
167:212 168:179 169:94 170:311 171:9 192:5489
193:2457 194:2006 195:1301 196:516 198:3635 199:2833
200:3048 201:3 202:4219 203:5334 204:2940 205:2015
206:2269 207:2614 208:2488 209:2818 210:957 211:416
212:925 213:963 214:23 215:25 216:3426 217:795
218:121 219:87 220:119 221:16
End of report
