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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 02 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130775
Prefixes after maximum aggregation: 80565
Unique aggregates announced to Internet: 62661
Total ASes present in the Internet Routing Table: 16244
Origin-only ASes present in the Internet Routing Table: 14103
Origin ASes announcing only one prefix: 6465
Transit ASes present in the Internet Routing Table: 2141
Transit-only ASes present in the Internet Routing Table: 69
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: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1265493092
Equivalent to 75 /8s, 109 /16s and 228 /24s
Percentage of available address space announced: 34.1
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57828
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23761
Total APNIC prefixes after maximum aggregation: 12920
Prefixes being announced from the APNIC address blocks: 22172
Unique aggregates announced from the APNIC address blocks: 12633
APNIC Region origin ASes present in the Internet Routing Table: 1944
APNIC Region origin ASes announcing only one prefix: 574
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: 131166848
Equivalent to 7 /8s, 209 /16s and 114 /24s
Percentage of available APNIC address space announced: 70.7
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: 77238
Total ARIN prefixes after maximum aggregation: 47855
Prefixes being announced from the ARIN address blocks: 59878
Unique aggregates announced from the ARIN address blocks: 20712
ARIN Region origin ASes present in the Internet Routing Table: 8773
ARIN Region origin ASes announcing only one prefix: 3069
ARIN Region transit ASes present in the Internet Routing Table: 832
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 210546592
Equivalent to 12 /8s, 140 /16s and 175 /24s
Percentage of available ARIN address space announced: 73.8
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: 23073
Total RIPE prefixes after maximum aggregation: 16883
Prefixes being announced from the RIPE address blocks: 19928
Unique aggregates announced from the RIPE address blocks: 13264
RIPE Region origin ASes present in the Internet Routing Table: 5000
RIPE Region origin ASes announcing only one prefix: 2687
RIPE Region transit ASes present in the Internet Routing Table: 888
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 143291008
Equivalent to 8 /8s, 138 /16s and 114 /24s
Percentage of available RIPE address space announced: 65.7
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: 5584
Total LACNIC prefixes after maximum aggregation: 2204
Prefixes being announced from the LACNIC address blocks: 5087
Unique aggregates announced from the LACNIC address blocks: 3086
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: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13540864
Equivalent to 0 /8s, 206 /16s and 158 /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: 1116
Total AfriNIC prefixes after maximum aggregation: 703
Prefixes being announced from the AfriNIC address blocks: 723
Unique aggregates announced from the AfriNIC address blocks: 556
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: 1757184
Equivalent to 0 /8s, 26 /16s and 208 /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 959 1119 679 Telstra Pty Ltd
4134 476 2448 112 Data Communications Bureau
2907 367 1863 343 SINET Japan
4755 341 131 59 Videsh Sanchar Nigam Ltd. Aut
9443 336 71 81 Primus Telecommunications
703 326 356 258 UUNET
17557 302 21 155 Pakistan Telecom
17676 283 4188 33 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 247 1778 22 China Education and Research
3786 234 773 203 DACOM Corporation
9583 232 44 11 Satyam Infoway Ltd.,
9929 217 165 38 China Netcom Corp.
9800 208 345 58 CHINA UNICOM
9942 206 68 119 COMindico Australia
9498 174 22 31 BHARTI BT INTERNET LTD.
17642 153 39 112 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 1377 7002 951 AT&T
1239 948 3092 665 Sprint
209 860 3449 536 Qwest
6197 766 438 215 BellSouth Network Solutions,
18566 729 176 8 Covad Communications
3356 713 10891 566 Level 3 Communications, LLC
4323 680 608 206 Time Warner Communications, I
6198 612 374 225 BellSouth Network Solutions,
20115 572 316 328 Charter Communications
7843 524 500 122 Adelphia Corp.
7066 511 207 271 Virginia Polytechnic Institut
852 504 1123 406 Telus Advanced Communications
7132 447 7309 312 Southwestern Bell Internet Se
19029 424 174 279 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.
376 359 359 114 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 303 1154 287 TeliaNet Sweden
3320 278 1988 231 Deutsche Telekom AG
8220 258 420 247 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
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
5400 174 175 140 BT Ignite European Backbone
3215 163 748 83 France Telecom Transpac
8708 160 111 156 Romania Data Systems S.A.
25186 160 181 111 France Telecom Transpac's Tra
3303 143 541 137 Swisscom Ltd
719 134 288 103 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 234 351 126 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 183 43 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 127 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 59 262 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 87 7 26 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
16637 26 9 19 Johnnic e-Ventures
9129 25 3 4 UUNET Kenya
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 766 551 BellSouth Network Solutions,
4323 680 474 Time Warner Communications, I
7018 1377 426 AT&T
7843 524 402 Adelphia Corp.
6198 612 387 BellSouth Network Solutions,
4134 476 364 Data Communications Bureau
27364 354 330 Armstrong Cable Services
209 860 324 Qwest
22909 317 306 Comcast Cable Corporation
5668 312 293 Century Telephone
4355 390 289 EarthLink, Inc.
22773 312 285 Cox Communications, Inc. Atla
1239 948 283 Sprint
4755 341 282 Videsh Sanchar Nigam Ltd. Aut
1221 959 280 Telstra Pty Ltd
6140 344 278 ImpSat
9443 336 255 Primus Telecommunications
6347 332 253 SAVVIS Communications Corpora
17676 283 250 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
64710 PRIVATE 211.138.96.0/20 17883 asn for Shanxi Provi
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 /15:483 /16:7500 /17:1822 /18:3330
/19:8708 /20:9231 /21:6653 /22:9383 /23:10946 /24:71483
/25:184 /26:234 /27:158 /28:72 /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 620 766 BellSouth Network Solutions,
7018 504 1377 AT&T
6198 473 612 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
690 361 400 Merit Network
20115 357 572 Charter Communications
27364 348 354 Armstrong Cable Services
1239 330 948 Sprint
209 295 860 Qwest
5668 278 312 Century Telephone
19029 274 424 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 220 278 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 12:758 13:1 15:6 16:1 17:3
20:7 24:869 32:82 38:44 40:23 43:1
44:2 55:1 56:1 57:12 61:342 62:449
63:1836 64:1826 65:1806 66:2232 67:280 68:636
69:342 80:443 81:166 82:37 128:154 129:255
130:68 131:81 132:17 134:186 135:16 136:183
137:112 138:119 139:46 140:169 141:140 142:110
143:47 144:63 145:41 146:289 147:71 148:315
149:86 150:118 151:60 152:208 153:56 154:1
155:128 156:56 157:61 158:137 159:137 160:46
161:49 162:363 163:74 164:333 165:172 166:104
167:212 168:180 169:94 170:311 171:9 192:5479
193:2454 194:2010 195:1300 196:514 198:3633 199:2832
200:3045 201:3 202:4168 203:5321 204:2945 205:2030
206:2285 207:2632 208:2485 209:2811 210:950 211:415
212:923 213:960 214:23 215:25 216:3422 217:793
218:116 219:88 220:120 221:16
End of report
