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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 26 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130187
Prefixes after maximum aggregation: 80475
Unique aggregates announced to Internet: 62602
Total ASes present in the Internet Routing Table: 16217
Origin-only ASes present in the Internet Routing Table: 14093
Origin ASes announcing only one prefix: 6455
Transit ASes present in the Internet Routing Table: 2124
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 22
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: 1261740388
Equivalent to 75 /8s, 52 /16s and 161 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57436
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23671
Total APNIC prefixes after maximum aggregation: 12961
Prefixes being announced from the APNIC address blocks: 22072
Unique aggregates announced from the APNIC address blocks: 12596
APNIC Region origin ASes present in the Internet Routing Table: 1950
APNIC Region origin ASes announcing only one prefix: 583
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: 128624640
Equivalent to 7 /8s, 170 /16s and 168 /24s
Percentage of available APNIC address space announced: 69.3
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: 76956
Total ARIN prefixes after maximum aggregation: 47790
Prefixes being announced from the ARIN address blocks: 59767
Unique aggregates announced from the ARIN address blocks: 20748
ARIN Region origin ASes present in the Internet Routing Table: 8755
ARIN Region origin ASes announcing only one prefix: 3054
ARIN Region transit ASes present in the Internet Routing Table: 828
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 210386080
Equivalent to 12 /8s, 138 /16s and 60 /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: 22897
Total RIPE prefixes after maximum aggregation: 16807
Prefixes being announced from the RIPE address blocks: 19757
Unique aggregates announced from the RIPE address blocks: 13213
RIPE Region origin ASes present in the Internet Routing Table: 4988
RIPE Region origin ASes announcing only one prefix: 2684
RIPE Region transit ASes present in the Internet Routing Table: 871
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 142088448
Equivalent to 8 /8s, 120 /16s and 25 /24s
Percentage of available RIPE address space announced: 65.1
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: 5557
Total LACNIC prefixes after maximum aggregation: 2223
Prefixes being announced from the LACNIC address blocks: 5056
Unique aggregates announced from the LACNIC address blocks: 3056
LACNIC Region origin ASes present in the Internet Routing Table: 364
LACNIC Region origin ASes announcing only one prefix: 108
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13434112
Equivalent to 0 /8s, 204 /16s and 253 /24s
Percentage of available LACNIC address space announced: 40.0
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1104
Total AfriNIC prefixes after maximum aggregation: 694
Prefixes being announced from the AfriNIC address blocks: 724
Unique aggregates announced from the AfriNIC address blocks: 557
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1753600
Equivalent to 0 /8s, 26 /16s and 194 /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 952 1119 681 Telstra Pty Ltd
4134 397 2432 111 Data Communications Bureau
2907 370 1864 346 SINET Japan
4755 343 131 56 Videsh Sanchar Nigam Ltd. Aut
9443 336 71 81 Primus Telecommunications
703 324 355 257 UUNET
17557 302 21 152 Pakistan Telecom
17676 282 4172 33 XTAGE CORPORATION
2764 278 287 238 connect.com.au pty ltd
4766 264 2896 191 Korea Internet Exchange for "
7474 264 306 214 Optus Communications Pty Ltd
4538 248 1778 22 China Education and Research
9583 238 44 11 Satyam Infoway Ltd.,
3786 234 773 203 DACOM Corporation
9929 217 165 38 China Netcom Corp.
9800 207 343 57 CHINA UNICOM
9942 202 68 117 COMindico Australia
9498 172 22 30 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 1431 8667 988 UUNET Technologies, Inc.
7018 1377 7017 952 AT&T
1239 952 3109 668 Sprint
209 884 3460 537 Qwest
6197 765 438 214 BellSouth Network Solutions,
18566 729 176 8 Covad Communications
3356 710 10859 563 Level 3 Communications, LLC
4323 675 608 203 Time Warner Communications, I
6198 616 374 226 BellSouth Network Solutions,
20115 574 316 328 Charter Communications
7843 524 502 124 Adelphia Corp.
852 518 1107 408 Telus Advanced Communications
7066 492 204 254 Virginia Polytechnic Institut
7132 445 7309 311 Southwestern Bell Internet Se
19029 418 174 275 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 329 101 EarthLink, Inc.
705 384 180 240 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
702 692 2092 573 UUNET - Commercial IP service
3301 305 1170 289 TeliaNet Sweden
8220 280 423 250 COLT Internet - International
3320 275 1987 230 Deutsche Telekom AG
1257 237 455 188 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 191 175 140 BT Ignite European Backbone
3246 178 438 176 Song Networks
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
8708 162 111 156 Romania Data Systems S.A.
3215 161 695 81 France Telecom Transpac
25186 160 181 113 France Telecom Transpac's Tra
3303 144 541 138 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 118 911 65 TELECOM ITALIA
2856 117 1294 108 BTnet UK Regional network
6746 104 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 233 351 125 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 181 43 33 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
10620 123 8 27 TVCABLE BOGOTA
6147 122 70 19 Telefonica Del Peru
11340 108 3 29 Red Universitaria Nacional
11992 86 25 32 Integrated Systems
8065 83 10 19 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
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 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 54 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 765 551 BellSouth Network Solutions,
4323 675 472 Time Warner Communications, I
7018 1377 425 AT&T
7843 524 400 Adelphia Corp.
6198 616 390 BellSouth Network Solutions,
209 884 347 Qwest
27364 354 330 Armstrong Cable Services
22909 317 306 Comcast Cable Corporation
5668 312 293 Century Telephone
4355 390 289 EarthLink, Inc.
4755 343 287 Videsh Sanchar Nigam Ltd. Aut
4134 397 286 Data Communications Bureau
1239 952 284 Sprint
22773 310 284 Cox Communications, Inc. Atla
6140 344 278 ImpSat
1221 952 271 Telstra Pty Ltd
9443 336 255 Primus Telecommunications
6347 334 255 SAVVIS Communications Corpora
17676 282 249 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
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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 /11:13 /12:57
/13:98 /14:275 /15:481 /16:7455 /17:1810 /18:3305
/19:8665 /20:9150 /21:6633 /22:9354 /23:10916 /24:71195
/25:180 /26:227 /27:161 /28:71 /29:22 /30:49
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 723 729 Covad Communications
6197 619 765 BellSouth Network Solutions,
7018 502 1377 AT&T
6198 477 616 BellSouth Network Solutions,
701 435 1431 UUNET Technologies, Inc.
702 417 692 UUNET - Commercial IP service
7066 389 492 Virginia Polytechnic Institut
3356 364 710 Level 3 Communications, LLC
690 361 400 Merit Network
20115 359 574 Charter Communications
27364 348 354 Armstrong Cable Services
1239 331 952 Sprint
209 310 884 Qwest
5668 278 312 Century Telephone
19029 268 418 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 217 275 Deutsche Telekom AG
4355 216 390 EarthLink, Inc.
6517 214 239 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:759 13:1 15:6 16:1 17:3
20:7 24:871 32:82 38:43 40:23 43:1
44:2 55:1 56:1 57:9 61:346 62:447
63:1837 64:1809 65:1801 66:2196 67:280 68:638
69:337 80:444 81:161 82:34 128:158 129:169
130:68 131:78 132:17 134:174 135:16 136:186
137:113 138:118 139:46 140:150 141:140 142:110
143:46 144:61 145:41 146:288 147:71 148:303
149:86 150:118 151:60 152:209 153:58 154:1
155:127 156:60 157:59 158:138 159:136 160:46
161:49 162:363 163:74 164:327 165:172 166:105
167:211 168:178 169:94 170:309 171:9 192:5495
193:2434 194:2001 195:1286 196:516 198:3631 199:2824
200:3026 201:3 202:4178 203:5317 204:2948 205:2030
206:2285 207:2635 208:2478 209:2810 210:958 211:411
212:886 213:988 214:23 215:18 216:3411 217:778
218:118 219:86 220:120 221:16 222:1
End of report
