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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 05 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 131005
Prefixes after maximum aggregation: 80733
Unique aggregates announced to Internet: 62800
Total ASes present in the Internet Routing Table: 16278
Origin-only ASes present in the Internet Routing Table: 14146
Origin ASes announcing only one prefix: 6476
Transit ASes present in the Internet Routing Table: 2132
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 19
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: 13
Number of addresses announced to Internet: 1267372772
Equivalent to 75 /8s, 138 /16s and 146 /24s
Percentage of available address space announced: 34.2
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57866
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23922
Total APNIC prefixes after maximum aggregation: 13011
Prefixes being announced from the APNIC address blocks: 22322
Unique aggregates announced from the APNIC address blocks: 12656
APNIC Region origin ASes present in the Internet Routing Table: 1954
APNIC Region origin ASes announcing only one prefix: 574
APNIC Region transit ASes present in the Internet Routing Table: 308
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 131481856
Equivalent to 7 /8s, 214 /16s and 65 /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: 77228
Total ARIN prefixes after maximum aggregation: 47890
Prefixes being announced from the ARIN address blocks: 59871
Unique aggregates announced from the ARIN address blocks: 20740
ARIN Region origin ASes present in the Internet Routing Table: 8776
ARIN Region origin ASes announcing only one prefix: 3065
ARIN Region transit ASes present in the Internet Routing Table: 828
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 211467168
Equivalent to 12 /8s, 154 /16s and 187 /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: 23145
Total RIPE prefixes after maximum aggregation: 16920
Prefixes being announced from the RIPE address blocks: 19999
Unique aggregates announced from the RIPE address blocks: 13311
RIPE Region origin ASes present in the Internet Routing Table: 5020
RIPE Region origin ASes announcing only one prefix: 2702
RIPE Region transit ASes present in the Internet Routing Table: 882
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 143715200
Equivalent to 8 /8s, 144 /16s and 235 /24s
Percentage of available RIPE address space announced: 65.9
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: 5586
Total LACNIC prefixes after maximum aggregation: 2210
Prefixes being announced from the LACNIC address blocks: 5093
Unique aggregates announced from the LACNIC address blocks: 3102
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: 13556736
Equivalent to 0 /8s, 206 /16s and 220 /24s
Percentage of available LACNIC address space announced: 40.4
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1122
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: 16
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 509 2389 110 Data Communications Bureau
2907 365 1863 342 SINET Japan
4755 342 131 61 Videsh Sanchar Nigam Ltd. Aut
9443 340 71 81 Primus Telecommunications
703 335 356 260 UUNET
17557 302 22 155 Pakistan Telecom
17676 285 4220 35 XTAGE CORPORATION
2764 277 287 237 connect.com.au pty ltd
4766 267 2896 191 Korea Internet Exchange for "
7474 262 306 212 Optus Communications Pty Ltd
4538 248 1778 22 China Education and Research
3786 236 775 205 DACOM Corporation
9583 229 44 11 Satyam Infoway Ltd.,
9929 214 152 27 China Netcom Corp.
9942 209 69 124 COMindico Australia
9800 208 345 58 CHINA UNICOM
9498 172 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 1430 8665 986 UUNET Technologies, Inc.
7018 1417 7058 987 AT&T
1239 943 3092 660 Sprint
209 860 3445 534 Qwest
6197 768 436 214 BellSouth Network Solutions,
18566 731 176 8 Covad Communications
3356 711 10909 563 Level 3 Communications, LLC
4323 678 608 206 Time Warner Communications, I
6198 614 374 226 BellSouth Network Solutions,
20115 582 320 333 Charter Communications
7843 523 504 121 Adelphia Corp.
7066 506 207 270 Virginia Polytechnic Institut
852 505 1123 406 Telus Advanced Communications
7132 448 7309 312 Southwestern Bell Internet Se
19029 432 174 279 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 329 101 EarthLink, Inc.
705 384 196 239 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
702 686 2090 568 UUNET - Commercial IP service
3301 302 1154 286 TeliaNet Sweden
3320 277 1972 231 Deutsche Telekom AG
8220 255 420 244 COLT Internet - International
1257 235 455 187 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
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
5400 171 175 140 BT Ignite European Backbone
25186 171 215 123 France Telecom Transpac's Tra
8708 161 111 156 Romania Data Systems S.A.
3215 146 722 71 France Telecom Transpac
3303 144 541 137 Swisscom Ltd
719 133 288 103 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 119 941 64 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 345 120 66 ImpSat
8151 241 352 125 UniNet S.A. de C.V.
11172 195 77 43 Servicios Alestra S.A de C.V
7303 182 44 17 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 204 94 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
10620 123 8 27 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
11992 85 24 31 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 58 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
3208 17 2 1 ARN Network
8524 17 1 3 AUCEGYPT Autonomous System
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 731 723 Covad Communications
6197 768 554 BellSouth Network Solutions,
4323 678 472 Time Warner Communications, I
7018 1417 430 AT&T
7843 523 402 Adelphia Corp.
4134 509 399 Data Communications Bureau
6198 614 388 BellSouth Network Solutions,
27364 354 330 Armstrong Cable Services
209 860 326 Qwest
22909 317 305 Comcast Cable Corporation
4355 390 289 EarthLink, Inc.
22773 314 285 Cox Communications, Inc. Atla
1239 943 283 Sprint
4755 342 281 Videsh Sanchar Nigam Ltd. Aut
1221 957 279 Telstra Pty Ltd
6140 345 279 ImpSat
9443 340 259 Primus Telecommunications
5668 277 259 Century Telephone
6347 332 253 SAVVIS Communications Corpora
17676 285 250 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
23787 UNALLOCATED 202.8.77.0/24 2914 Verio, Inc.
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 /14:276 /15:485 /16:7508 /17:1827 /18:3342
/19:8775 /20:9271 /21:6669 /22:9411 /23:10993 /24:71490
/25:186 /26:234 /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 725 731 Covad Communications
6197 623 768 BellSouth Network Solutions,
7018 517 1417 AT&T
6198 474 614 BellSouth Network Solutions,
701 436 1430 UUNET Technologies, Inc.
702 414 686 UUNET - Commercial IP service
7066 398 506 Virginia Polytechnic Institut
20115 364 582 Charter Communications
690 361 400 Merit Network
3356 358 711 Level 3 Communications, LLC
27364 348 354 Armstrong Cable Services
1239 329 943 Sprint
209 296 860 Qwest
19029 282 432 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
5668 243 277 Century Telephone
3320 220 277 Deutsche Telekom AG
4355 216 390 EarthLink, Inc.
6517 216 241 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:756 13:1 15:6 16:1 17:3
20:7 24:870 32:82 38:44 40:24 43:1
44:2 55:1 56:1 57:12 61:340 62:448
63:1847 64:1813 65:1815 66:2191 67:282 68:644
69:347 80:438 81:163 82:37 128:149 129:258
130:69 131:81 132:17 134:191 135:16 136:181
137:112 138:119 139:29 140:162 141:140 142:111
143:49 144:63 145:39 146:289 147:71 148:315
149:86 150:118 151:60 152:209 153:56 154:1
155:128 156:60 157:62 158:137 159:137 160:46
161:49 162:365 163:74 164:329 165:174 166:106
167:212 168:182 169:94 170:307 171:9 192:5495
193:2465 194:2010 195:1298 196:516 198:3633 199:2836
200:3046 201:3 202:4216 203:5352 204:2940 205:2012
206:2273 207:2615 208:2486 209:2820 210:960 211:391
212:921 213:964 214:23 215:25 216:3411 217:800
218:120 219:87 220:116 221:16
End of report
