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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 11 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130760
Prefixes after maximum aggregation: 80684
Unique aggregates announced to Internet: 62839
Total ASes present in the Internet Routing Table: 16313
Origin-only ASes present in the Internet Routing Table: 14177
Origin ASes announcing only one prefix: 6494
Transit ASes present in the Internet Routing Table: 2136
Transit-only ASes present in the Internet Routing Table: 66
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: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1271010468
Equivalent to 75 /8s, 194 /16s and 20 /24s
Percentage of available address space announced: 34.3
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57624
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23829
Total APNIC prefixes after maximum aggregation: 12939
Prefixes being announced from the APNIC address blocks: 22261
Unique aggregates announced from the APNIC address blocks: 12642
APNIC Region origin ASes present in the Internet Routing Table: 1955
APNIC Region origin ASes announcing only one prefix: 580
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: 131959040
Equivalent to 7 /8s, 221 /16s and 137 /24s
Percentage of available APNIC address space announced: 71.1
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: 77044
Total ARIN prefixes after maximum aggregation: 47866
Prefixes being announced from the ARIN address blocks: 59683
Unique aggregates announced from the ARIN address blocks: 20763
ARIN Region origin ASes present in the Internet Routing Table: 8798
ARIN Region origin ASes announcing only one prefix: 3078
ARIN Region transit ASes present in the Internet Routing Table: 830
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 211737696
Equivalent to 12 /8s, 158 /16s and 220 /24s
Percentage of available ARIN address space announced: 74.2
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: 23193
Total RIPE prefixes after maximum aggregation: 16958
Prefixes being announced from the RIPE address blocks: 20048
Unique aggregates announced from the RIPE address blocks: 13332
RIPE Region origin ASes present in the Internet Routing Table: 5033
RIPE Region origin ASes announcing only one prefix: 2700
RIPE Region transit ASes present in the Internet Routing Table: 874
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 146703744
Equivalent to 8 /8s, 190 /16s and 133 /24s
Percentage of available RIPE address space announced: 67.3
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: 5573
Total LACNIC prefixes after maximum aggregation: 2221
Prefixes being announced from the LACNIC address blocks: 5089
Unique aggregates announced from the LACNIC address blocks: 3094
LACNIC Region origin ASes present in the Internet Routing Table: 367
LACNIC Region origin ASes announcing only one prefix: 108
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: 15
Number of LACNIC addresses announced to Internet: 13633536
Equivalent to 0 /8s, 208 /16s and 8 /24s
Percentage of available LACNIC address space announced: 40.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1119
Total AfriNIC prefixes after maximum aggregation: 700
Prefixes being announced from the AfriNIC address blocks: 725
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: 12
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 945 1118 667 Telstra Pty Ltd
4134 620 2397 108 Data Communications Bureau
2907 363 1863 340 SINET Japan
4755 344 130 59 Videsh Sanchar Nigam Ltd. Aut
9443 336 69 79 Primus Telecommunications
703 335 356 260 UUNET
17557 305 22 154 Pakistan Telecom
17676 288 4236 37 XTAGE CORPORATION
2764 276 288 236 connect.com.au pty ltd
4766 268 2896 192 Korea Internet Exchange for "
7474 262 306 212 Optus Communications Pty Ltd
4538 249 1810 20 China Education and Research
3786 235 771 204 DACOM Corporation
9583 231 44 11 Satyam Infoway Ltd.,
9929 216 152 27 China Netcom Corp.
9942 214 69 125 COMindico Australia
9800 208 345 58 CHINA UNICOM
9498 173 22 31 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
17964 144 108 58 Beijing Dian-Xin-Tong Network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1420 8664 975 UUNET Technologies, Inc.
7018 1417 7058 986 AT&T
1239 948 3076 661 Sprint
209 860 3446 532 Qwest
6197 801 473 251 BellSouth Network Solutions,
18566 732 176 8 Covad Communications
3356 708 10908 565 Level 3 Communications, LLC
4323 680 608 206 Time Warner Communications, I
20115 582 320 333 Charter Communications
6198 562 337 190 BellSouth Network Solutions,
7066 509 207 271 Virginia Polytechnic Institut
852 507 1123 403 Telus Advanced Communications
7843 506 509 122 Adelphia Corp.
7132 450 7341 311 Southwestern Bell Internet Se
19029 426 174 278 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 391 329 101 EarthLink, Inc.
705 382 196 237 UUNET Technologies, Inc.
376 354 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 682 2058 565 UUNET - Commercial IP service
3301 301 1154 285 TeliaNet Sweden
3320 286 1973 234 Deutsche Telekom AG
8220 259 421 247 COLT Internet - International
1257 242 495 192 SWIPnet Swedish IP Network
680 231 2022 227 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 186 426 184 Song Networks
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
25186 173 215 124 France Telecom Transpac's Tra
8708 164 111 157 Romania Data Systems S.A.
5400 159 177 141 BT Ignite European Backbone
3215 144 722 69 France Telecom Transpac
3303 144 557 137 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 119 941 64 TELECOM ITALIA
2856 116 1294 107 BTnet UK Regional network
3352 102 876 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 346 120 66 ImpSat
8151 241 352 125 UniNet S.A. de C.V.
11172 195 77 43 Servicios Alestra S.A de C.V
7303 180 46 26 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 127 204 93 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
10620 123 8 27 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
11992 88 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 249 632 218 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 88 7 23 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 31 4 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 15 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 732 724 Covad Communications
6197 801 550 BellSouth Network Solutions,
4134 620 512 Data Communications Bureau
4323 680 474 Time Warner Communications, I
7018 1417 431 AT&T
7843 506 384 Adelphia Corp.
6198 562 372 BellSouth Network Solutions,
27364 354 330 Armstrong Cable Services
209 860 328 Qwest
22909 320 308 Comcast Cable Corporation
4355 391 290 EarthLink, Inc.
1239 948 287 Sprint
4755 344 285 Videsh Sanchar Nigam Ltd. Aut
22773 315 285 Cox Communications, Inc. Atla
6140 346 280 ImpSat
1221 945 278 Telstra Pty Ltd
5668 280 262 Century Telephone
9443 336 257 Primus Telecommunications
17676 288 251 XTAGE CORPORATION
6347 329 250 SAVVIS Communications Corpora
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
192.84.205.0/24 719 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
/13:101 /14:278 /15:487 /16:7504 /17:1838 /18:3410
/19:8803 /20:9309 /21:6664 /22:9364 /23:10999 /24:71250
/25:179 /26:232 /27:156 /28:35 /29:9 /30:19
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 726 732 Covad Communications
6197 653 801 BellSouth Network Solutions,
7018 519 1417 AT&T
701 429 1420 UUNET Technologies, Inc.
6198 424 562 BellSouth Network Solutions,
702 413 682 UUNET - Commercial IP service
7066 401 509 Virginia Polytechnic Institut
20115 364 582 Charter Communications
690 361 400 Merit Network
3356 357 708 Level 3 Communications, LLC
27364 348 354 Armstrong Cable Services
1239 335 948 Sprint
209 296 860 Qwest
19029 277 426 New Edge Networks
5668 246 280 Century Telephone
25844 244 244 Skadden, Arps, Slate, Meagher
3320 229 286 Deutsche Telekom AG
6517 221 246 Yipes Communications, Inc.
4355 216 391 EarthLink, Inc.
6386 202 226 bellsouth.net, inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:756 13:1 15:6 16:1 17:3
20:7 24:855 32:82 38:43 40:25 43:1
44:2 55:1 56:1 57:16 61:323 62:457
63:1851 64:1801 65:1801 66:2168 67:280 68:644
69:355 80:443 81:170 82:40 128:151 129:264
130:67 131:80 132:17 134:173 135:16 136:182
137:114 138:126 139:30 140:164 141:140 142:112
143:49 144:64 145:41 146:290 147:70 148:315
149:87 150:118 151:60 152:208 153:56 154:1
155:128 156:61 157:62 158:134 159:137 160:46
161:51 162:367 163:71 164:331 165:173 166:104
167:210 168:183 169:95 170:302 171:9 192:5485
193:2473 194:2009 195:1302 196:515 198:3637 199:2843
200:3033 201:4 202:4142 203:5341 204:2947 205:2008
206:2266 207:2612 208:2480 209:2773 210:967 211:392
212:926 213:941 214:23 215:25 216:3373 217:800
218:121 219:86 220:116 221:16
End of report
