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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 24 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 129277
Prefixes after maximum aggregation: 80740
Unique aggregates announced to Internet: 62376
Total ASes present in the Internet Routing Table: 16055
Origin-only ASes present in the Internet Routing Table: 13928
Origin ASes announcing only one prefix: 6348
Transit ASes present in the Internet Routing Table: 2127
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1248505508
Equivalent to 74 /8s, 106 /16s and 174 /24s
Percentage of available address space announced: 33.7
Percentage of allocated address space announced: 60.2
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57181
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23013
Total APNIC prefixes after maximum aggregation: 12902
Prefixes being announced from the APNIC address blocks: 21437
Unique aggregates announced from the APNIC address blocks: 12446
APNIC Region origin ASes present in the Internet Routing Table: 1923
APNIC Region origin ASes announcing only one prefix: 558
APNIC Region transit ASes present in the Internet Routing Table: 303
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 123947264
Equivalent to 7 /8s, 99 /16s and 73 /24s
Percentage of available APNIC address space announced: 66.8
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: 76917
Total ARIN prefixes after maximum aggregation: 48255
Prefixes being announced from the ARIN address blocks: 59640
Unique aggregates announced from the ARIN address blocks: 20664
ARIN Region origin ASes present in the Internet Routing Table: 8716
ARIN Region origin ASes announcing only one prefix: 3015
ARIN Region transit ASes present in the Internet Routing Table: 841
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 207523488
Equivalent to 12 /8s, 94 /16s and 142 /24s
Percentage of available ARIN address space announced: 72.8
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: 22754
Total RIPE prefixes after maximum aggregation: 16647
Prefixes being announced from the RIPE address blocks: 19637
Unique aggregates announced from the RIPE address blocks: 13094
RIPE Region origin ASes present in the Internet Routing Table: 4913
RIPE Region origin ASes announcing only one prefix: 2652
RIPE Region transit ASes present in the Internet Routing Table: 874
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 138164544
Equivalent to 8 /8s, 60 /16s and 57 /24s
Percentage of available RIPE address space announced: 74.9
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, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5549
Total LACNIC prefixes after maximum aggregation: 2267
Prefixes being announced from the LACNIC address blocks: 5047
Unique aggregates announced from the LACNIC address blocks: 3222
LACNIC Region origin ASes present in the Internet Routing Table: 355
LACNIC Region origin ASes announcing only one prefix: 104
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: 12
Number of LACNIC addresses announced to Internet: 13411584
Equivalent to 0 /8s, 204 /16s and 165 /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: 1041
Total AfriNIC prefixes after maximum aggregation: 669
Prefixes being announced from the AfriNIC address blocks: 695
Unique aggregates announced from the AfriNIC address blocks: 531
AfriNIC Region origin ASes present in the Internet Routing Table: 75
AfriNIC Region origin ASes announcing only one prefix: 19
AfriNIC Region transit ASes present in the Internet Routing Table: 9
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1748224
Equivalent to 0 /8s, 26 /16s and 173 /24s
Percentage of available AfriNIC address space announced: 10.4
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 970 1109 687 Telstra Pty Ltd
4755 392 134 71 Videsh Sanchar Nigam Ltd. Aut
2907 367 1879 344 SINET Japan
4134 366 2293 113 Data Communications Bureau
703 330 356 265 UUNET
2764 293 288 254 connect.com.au pty ltd
17557 287 20 143 Pakistan Telecom
17676 273 4028 34 XTAGE CORPORATION
7474 262 306 209 Optus Communications Pty Ltd
9583 262 44 11 Satyam Infoway Ltd.,
4766 242 2462 177 Korea Internet Exchange for "
3786 233 773 203 DACOM Corporation
4538 215 1714 21 China Education and Research
9800 203 334 55 CHINA UNICOM
9942 201 70 117 COMindico Australia
9929 189 160 36 China Netcom Corp.
9443 188 72 83 Primus Telecommunications
9498 186 20 20 BHARTI BT INTERNET LTD.
17642 157 40 116 RequestDSL BGP AS# for Sydney
4739 143 58 132 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1447 8668 1002 UUNET Technologies, Inc.
7018 1357 7097 941 AT&T
1239 924 3053 665 Sprint
3908 888 1532 485 Supernet, Inc.
18566 713 176 8 Covad Communications
4323 682 576 197 Time Warner Communications, I
6197 644 455 241 BellSouth Network Solutions,
209 607 2205 363 Qwest
3356 605 10816 503 Level 3 Communications, LLC
6198 571 320 197 BellSouth Network Solutions,
20115 541 275 309 Charter Communications
7843 531 475 139 Adelphia Corp.
852 518 1123 411 Telus Advanced Communications
7066 510 207 271 Virginia Polytechnic Institut
690 410 59 275 Merit Network
4355 398 332 108 EarthLink, Inc.
705 396 184 240 UUNET Technologies, Inc.
2386 383 526 200 AT&T Data Communications Serv
376 362 359 115 Reseau Interordinateurs Scien
6347 347 381 80 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 702 2094 581 UUNET - Commercial IP service
3301 301 1169 286 TeliaNet Sweden
3320 277 2005 238 Deutsche Telekom AG
8220 259 421 248 COLT Internet - International
1257 239 438 191 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
719 193 307 123 LANLINK autonomous system
5400 187 172 135 BT Ignite European Backbone
5515 186 779 147 Sonera Solution Autonomous Sy
3215 179 688 90 France Telecom Transpac
786 176 1857 176 The JANET IP Service
8708 160 111 154 Romania Data Systems S.A.
3303 148 541 142 Swisscom Ltd
25186 134 162 95 France Telecom Transpac's Tra
12302 126 18 33 MobiFon S.A.
3246 125 374 123 Song Networks
3269 122 913 66 TELECOM ITALIA
2856 117 1294 108 BTnet UK Regional network
2647 101 4225 49 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 337 104 99 ImpSat
8151 237 351 126 UniNet S.A. de C.V.
7303 213 41 55 Telecom Argentina Stet-France
11172 190 77 41 Servicios Alestra S.A de C.V
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 129 205 93 AVANTEL, S.A.
10620 123 8 26 TVCABLE BOGOTA
6147 107 70 19 Telefonica Del Peru
11340 103 3 29 Red Universitaria Nacional
11992 85 24 31 Integrated Systems
8065 84 10 18 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
11830 75 22 24 Instituto Costarricense de El
11311 67 7 23 Sinectis S.A.
4270 66 18 9 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
1916 60 266 40 Fundacao de Amparo a Pesquisa
4926 57 4 48 Telintar S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 633 220 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 83 5 30 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 55 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
12455 26 4 2 Jambonet Autonomous system
5713 24 93 22 Telkom SA Ltd
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
9129 19 2 1 UUNET Kenya
10798 17 1 11 Standard Bank of South Africa
15706 15 2 5 Sudatel Internet Exchange Aut
8524 14 1 3 AUCEGYPT Autonomous System
12258 14 3 9 Vodacom Internet Company
3208 13 2 1 ARN Network
8346 12 6 12 SONATEL-AS Autonomous System
2609 11 10 3 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 713 705 Covad Communications
4323 682 485 Time Warner Communications, I
7018 1357 416 AT&T
3908 888 403 Supernet, Inc.
6197 644 403 BellSouth Network Solutions,
7843 531 392 Adelphia Corp.
6198 571 374 BellSouth Network Solutions,
4755 392 321 Videsh Sanchar Nigam Ltd. Aut
27364 316 293 Armstrong Cable Services
5668 309 293 Century Telephone
22909 304 291 Comcast Cable Corporation
4355 398 290 EarthLink, Inc.
1221 970 283 Telstra Pty Ltd
22773 295 279 Cox Communications, Inc. Atla
6347 347 267 SAVVIS Communications Corpora
1239 924 259 Sprint
4134 366 253 Data Communications Bureau
9583 262 251 Satyam Infoway Ltd.,
376 362 247 Reseau Interordinateurs Scien
209 607 244 Qwest
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65503 PRIVATE 202.133.192.0/20 4775 Telecom Carrier /
65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom
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
192.153.136.0/21 568 DISO-UNRRA
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 /11:12 /12:55
/13:98 /14:268 /15:471 /16:7452 /17:1787 /18:3212
/19:8550 /20:9009 /21:6627 /22:9451 /23:10872 /24:70702
/25:160 /26:207 /27:158 /28:43 /29:23 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 707 713 Covad Communications
3908 562 888 Supernet, Inc.
6197 502 644 BellSouth Network Solutions,
7018 483 1357 AT&T
701 443 1447 UUNET Technologies, Inc.
6198 443 571 BellSouth Network Solutions,
702 423 702 UUNET - Commercial IP service
7066 402 510 Virginia Polytechnic Institut
690 371 410 Merit Network
20115 350 541 Charter Communications
1239 325 924 Sprint
27364 310 316 Armstrong Cable Services
3356 292 605 Level 3 Communications, LLC
5668 275 309 Century Telephone
209 248 607 Qwest
25844 243 243 Skadden, Arps, Slate, Meagher
4355 221 398 EarthLink, Inc.
3320 219 277 Deutsche Telekom AG
7843 210 531 Adelphia Corp.
6517 207 231 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:722 13:1 15:6 16:1 17:2
20:7 24:820 25:1 32:83 34:1 38:52
40:23 43:1 44:2 55:1 57:14 61:332
62:447 63:1869 64:1821 65:1963 66:2166 67:272
68:396 69:286 80:425 81:158 82:66 128:156
129:157 130:63 131:84 132:19 134:167 135:10
136:180 137:120 138:133 139:48 140:173 141:138
142:101 143:49 144:60 145:35 146:279 147:67
148:304 149:79 150:120 151:64 152:211 153:59
154:8 155:130 156:58 157:53 158:140 159:142
160:46 161:69 162:361 163:69 164:318 165:150
166:100 167:309 168:178 169:96 170:313 171:9
192:5435 193:2419 194:2016 195:1289 196:481 198:3576
199:2824 200:3066 201:3 202:4061 203:5319 204:3007
205:2040 206:2282 207:2600 208:2516 209:2785 210:943
211:392 212:941 213:947 214:17 215:21 216:3294
217:776 218:116 219:42 220:115 221:13 222:1
End of report
