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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 10 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 131228
Prefixes after maximum aggregation: 80835
Unique aggregates announced to Internet: 62899
Total ASes present in the Internet Routing Table: 16307
Origin-only ASes present in the Internet Routing Table: 14170
Origin ASes announcing only one prefix: 6485
Transit ASes present in the Internet Routing Table: 2137
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: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1271005668
Equivalent to 75 /8s, 194 /16s and 1 /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: 57850
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23947
Total APNIC prefixes after maximum aggregation: 12997
Prefixes being announced from the APNIC address blocks: 22376
Unique aggregates announced from the APNIC address blocks: 12718
APNIC Region origin ASes present in the Internet Routing Table: 1957
APNIC Region origin ASes announcing only one prefix: 578
APNIC Region transit ASes present in the Internet Routing Table: 312
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 132086016
Equivalent to 7 /8s, 223 /16s and 121 /24s
Percentage of available APNIC address space announced: 71.2
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: 77413
Total ARIN prefixes after maximum aggregation: 47989
Prefixes being announced from the ARIN address blocks: 59979
Unique aggregates announced from the ARIN address blocks: 20737
ARIN Region origin ASes present in the Internet Routing Table: 8796
ARIN Region origin ASes announcing only one prefix: 3074
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: 211642016
Equivalent to 12 /8s, 157 /16s and 102 /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: 23162
Total RIPE prefixes after maximum aggregation: 16944
Prefixes being announced from the RIPE address blocks: 20021
Unique aggregates announced from the RIPE address blocks: 13329
RIPE Region origin ASes present in the Internet Routing Table: 5030
RIPE Region origin ASes announcing only one prefix: 2699
RIPE Region transit ASes present in the Internet Routing Table: 881
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 146596736
Equivalent to 8 /8s, 188 /16s and 227 /24s
Percentage of available RIPE address space announced: 67.2
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: 5574
Total LACNIC prefixes after maximum aggregation: 2205
Prefixes being announced from the LACNIC address blocks: 5100
Unique aggregates announced from the LACNIC address blocks: 3104
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: 68
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13632256
Equivalent to 0 /8s, 208 /16s and 3 /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: 1125
Total AfriNIC prefixes after maximum aggregation: 700
Prefixes being announced from the AfriNIC address blocks: 732
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: 27
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: 16
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 949 1118 670 Telstra Pty Ltd
4134 556 2389 110 Data Communications Bureau
2907 363 1863 340 SINET Japan
4755 343 130 59 Videsh Sanchar Nigam Ltd. Aut
9443 337 69 80 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 230 44 11 Satyam Infoway Ltd.,
9942 214 69 125 COMindico Australia
9929 211 152 27 China Netcom Corp.
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 1424 8664 980 UUNET Technologies, Inc.
7018 1417 7058 987 AT&T
1239 946 3076 660 Sprint
209 860 3446 532 Qwest
6197 766 436 215 BellSouth Network Solutions,
18566 732 176 8 Covad Communications
3356 708 10908 565 Level 3 Communications, LLC
4323 679 608 206 Time Warner Communications, I
6198 604 371 220 BellSouth Network Solutions,
20115 582 320 333 Charter Communications
7843 517 507 130 Adelphia Corp.
7066 511 207 271 Virginia Polytechnic Institut
852 507 1123 403 Telus Advanced Communications
7132 451 7341 312 Southwestern Bell Internet Se
19029 419 174 278 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 391 329 101 EarthLink, Inc.
705 383 196 238 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
702 685 2075 568 UUNET - Commercial IP service
3301 302 1154 286 TeliaNet Sweden
3320 286 1973 234 Deutsche Telekom AG
8220 257 420 245 COLT Internet - International
1257 239 487 190 SWIPnet Swedish IP Network
680 232 2038 228 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 185 424 183 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
5400 167 177 141 BT Ignite European Backbone
8708 164 111 157 Romania Data Systems S.A.
3215 143 722 69 France Telecom Transpac
3303 143 557 136 Swisscom Ltd
719 133 288 103 LANLINK autonomous system
12302 125 18 32 MobiFon S.A.
3269 119 941 64 TELECOM ITALIA
2856 116 1294 107 BTnet UK Regional network
3352 101 860 29 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 184 46 17 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 89 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 57 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
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 732 724 Covad Communications
6197 766 551 BellSouth Network Solutions,
4323 679 473 Time Warner Communications, I
4134 556 446 Data Communications Bureau
7018 1417 430 AT&T
7843 517 387 Adelphia Corp.
6198 604 384 BellSouth Network Solutions,
27364 354 330 Armstrong Cable Services
209 860 328 Qwest
22909 318 308 Comcast Cable Corporation
4355 391 290 EarthLink, Inc.
1239 946 286 Sprint
22773 315 285 Cox Communications, Inc. Atla
4755 343 284 Videsh Sanchar Nigam Ltd. Aut
6140 346 280 ImpSat
1221 949 279 Telstra Pty Ltd
5668 279 261 Century Telephone
9443 337 257 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
65012 PRIVATE 209.22.76.0/24 765 Communications Syste
65012 PRIVATE 209.22.77.0/24 765 Communications Syste
65012 PRIVATE 209.22.78.0/24 765 Communications Syste
65012 PRIVATE 209.22.98.0/24 765 Communications Syste
65012 PRIVATE 209.22.114.0/24 765 Communications Syste
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 /11:15 /12:57
/13:101 /14:276 /15:488 /16:7504 /17:1832 /18:3364
/19:8799 /20:9309 /21:6667 /22:9398 /23:11030 /24:71608
/25:183 /26:233 /27:155 /28:68 /29:21 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 726 732 Covad Communications
6197 621 766 BellSouth Network Solutions,
7018 520 1417 AT&T
6198 464 604 BellSouth Network Solutions,
701 432 1424 UUNET Technologies, Inc.
702 414 685 UUNET - Commercial IP service
7066 403 511 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 333 946 Sprint
209 296 860 Qwest
19029 270 419 New Edge Networks
5668 245 279 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 202 227 bellsouth.net, inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:757 13:1 15:6 16:1 17:3
20:7 24:868 32:82 38:43 40:25 43:1
44:2 55:1 56:1 57:16 61:321 62:453
63:1852 64:1810 65:1807 66:2192 67:280 68:655
69:354 80:442 81:167 82:39 128:149 129:264
130:67 131:80 132:17 134:186 135:16 136:183
137:112 138:126 139:29 140:162 141:140 142:111
143:49 144:64 145:39 146:290 147:70 148:315
149:87 150:118 151:60 152:208 153:56 154:1
155:128 156:60 157:62 158:136 159:138 160:46
161:51 162:367 163:73 164:334 165:173 166:104
167:212 168:183 169:94 170:304 171:9 192:5496
193:2473 194:2005 195:1306 196:519 198:3647 199:2845
200:3045 201:3 202:4233 203:5361 204:2977 205:2066
206:2271 207:2618 208:2478 209:2815 210:950 211:391
212:923 213:935 214:23 215:25 216:3405 217:799
218:120 219:86 220:116 221:16
End of report
