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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 06 Oct, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128949
Prefixes after maximum aggregation: 80300
Unique aggregates announced to Internet: 62015
Total ASes present in the Internet Routing Table: 15914
Origin-only ASes present in the Internet Routing Table: 13807
Origin ASes announcing only one prefix: 6269
Transit ASes present in the Internet Routing Table: 2107
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 26
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: 14
Number of addresses announced to Internet: 1245391396
Equivalent to 74 /8s, 59 /16s and 42 /24s
Percentage of available address space announced: 33.6
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57396
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22772
Total APNIC prefixes after maximum aggregation: 12832
Prefixes being announced from the APNIC address blocks: 21168
Unique aggregates announced from the APNIC address blocks: 12344
APNIC Region origin ASes present in the Internet Routing Table: 1900
APNIC Region origin ASes announcing only one prefix: 543
APNIC Region transit ASes present in the Internet Routing Table: 303
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 123317504
Equivalent to 7 /8s, 89 /16s and 173 /24s
Percentage of available APNIC address space announced: 66.4
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: 78054
Total ARIN prefixes after maximum aggregation: 48591
Prefixes being announced from the ARIN address blocks: 55707
Unique aggregates announced from the ARIN address blocks: 17363
ARIN Region origin ASes present in the Internet Routing Table: 8710
ARIN Region origin ASes announcing only one prefix: 2999
ARIN Region transit ASes present in the Internet Routing Table: 846
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197764384
Equivalent to 11 /8s, 201 /16s and 165 /24s
Percentage of available ARIN address space announced: 73.7
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, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 22688
Total RIPE prefixes after maximum aggregation: 16612
Prefixes being announced from the RIPE address blocks: 19200
Unique aggregates announced from the RIPE address blocks: 12945
RIPE Region origin ASes present in the Internet Routing Table: 4887
RIPE Region origin ASes announcing only one prefix: 2627
RIPE Region transit ASes present in the Internet Routing Table: 857
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136939072
Equivalent to 8 /8s, 41 /16s and 134 /24s
Percentage of available RIPE address space announced: 74.2
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, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5433
Total LACNIC prefixes after maximum aggregation: 2265
Prefixes being announced from the LACNIC address blocks: 4934
Unique aggregates announced from the LACNIC address blocks: 3312
LACNIC Region origin ASes present in the Internet Routing Table: 348
LACNIC Region origin ASes announcing only one prefix: 100
LACNIC Region transit ASes present in the Internet Routing Table: 74
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13336320
Equivalent to 0 /8s, 203 /16s and 127 /24s
Percentage of available LACNIC address space announced: 39.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 971 1109 688 Telstra Pty Ltd
4755 384 133 72 Videsh Sanchar Nigam Ltd. Aut
2907 367 1863 344 SINET Japan
4134 364 2223 105 Data Communications Bureau
703 336 372 267 UUNET
2764 296 290 259 connect.com.au pty ltd
17557 276 24 139 Pakistan Telecom
17676 271 3996 32 XTAGE CORPORATION
7474 260 305 206 Optus Communications Pty Ltd
9583 241 43 9 Satyam Infoway Ltd.,
4766 238 2461 173 Korea Internet Exchange for "
3786 235 773 203 DACOM Corporation
4538 209 1714 21 China Education and Research
9800 203 332 52 CHINA UNICOM
9942 191 69 112 COMindico Australia
9929 190 160 36 China Netcom Corp.
9498 184 20 17 BHARTI BT INTERNET LTD.
9443 183 58 83 Primus Telecommunications
17642 156 40 117 RequestDSL BGP AS# for Sydney
4739 141 58 130 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1460 8702 1014 UUNET Technologies, Inc.
7018 1401 7143 976 AT&T
6198 1215 330 195 BellSouth Network Solutions,
6197 982 442 245 BellSouth Network Solutions,
3908 940 1577 512 Supernet, Inc.
1239 911 3029 653 Sprint
18566 701 176 8 Covad Communications
4323 675 575 196 Time Warner Communications, I
3356 586 10796 489 Level 3 Communications, LLC
7843 531 473 137 Adelphia Corp.
852 516 1123 409 Telus Advanced Communications
209 503 2127 290 Qwest
7066 498 205 263 Virginia Polytechnic Institut
20115 465 202 283 Charter Communications
690 411 59 276 Merit Network
705 403 184 246 UUNET Technologies, Inc.
4355 394 332 108 EarthLink, Inc.
2386 377 491 194 AT&T Data Communications Serv
376 361 359 115 Reseau Interordinateurs Scien
6347 349 381 80 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 707 2104 586 UUNET - Commercial IP service
3301 293 1168 282 TeliaNet Sweden
3320 280 2005 240 Deutsche Telekom AG
8220 257 435 246 COLT Internet - International
1257 235 358 183 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
719 193 307 123 LANLINK autonomous system
5400 187 174 134 BT Ignite European Backbone
3215 186 753 102 France Telecom Transpac
5515 186 779 148 Sonera Solution Autonomous Sy
786 178 1858 178 The JANET IP Service
8708 158 111 154 Romania Data Systems S.A.
3303 149 556 142 Swisscom Ltd
3246 128 376 126 Song Networks
12302 127 18 34 MobiFon S.A.
3269 119 853 65 TELECOM ITALIA
2856 113 1293 104 BTnet UK Regional network
25186 108 128 75 France Telecom Transpac's Tra
2647 100 4225 48 SITA
3352 98 824 34 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 339 104 99 ImpSat
8151 228 366 121 UniNet S.A. de C.V.
7303 217 40 51 Telecom Argentina Stet-France
11172 187 79 44 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 129 189 93 AVANTEL, S.A.
10620 122 8 26 TVCABLE BOGOTA
11340 100 2 33 Red Universitaria Nacional
11992 88 24 36 Integrated Systems
6147 86 70 19 Telefonica Del Peru
8065 82 8 17 Empresas Publicas de Medellin
6505 80 84 69 Global One Communicaoes Ltda
15311 77 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
11830 75 22 24 Instituto Costarricense de El
7927 66 6 40 Global One Venezuela
4270 65 18 9 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
1916 61 270 41 Fundacao de Amparo a Pesquisa
10292 58 5 26 TELECOMMUNICATIONS OF JAMAICA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6198 1215 1020 BellSouth Network Solutions,
6197 982 737 BellSouth Network Solutions,
18566 701 693 Covad Communications
4323 675 479 Time Warner Communications, I
3908 940 428 Supernet, Inc.
7018 1401 425 AT&T
7843 531 394 Adelphia Corp.
4755 384 312 Videsh Sanchar Nigam Ltd. Aut
27364 314 291 Armstrong Cable Services
5668 306 291 Century Telephone
4355 394 286 EarthLink, Inc.
1221 971 283 Telstra Pty Ltd
22909 296 279 Comcast Cable Corporation
6347 349 269 SAVVIS Communications Corpora
4134 364 259 Data Communications Bureau
1239 911 258 Sprint
22773 288 251 Cox Communications, Inc. Atla
376 361 246 Reseau Interordinateurs Scien
25844 243 241 Skadden, Arps, Slate, Meagher
6140 339 240 ImpSat
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
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
/13:99 /14:268 /15:470 /16:7427 /17:1765 /18:3162
/19:8483 /20:8889 /21:6544 /22:9339 /23:10734 /24:71035
/25:153 /26:206 /27:169 /28:20 /29:12 /30:53
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6198 1091 1215 BellSouth Network Solutions,
6197 842 982 BellSouth Network Solutions,
18566 695 701 Covad Communications
3908 597 940 Supernet, Inc.
7018 503 1401 AT&T
701 441 1460 UUNET Technologies, Inc.
702 423 707 UUNET - Commercial IP service
7066 393 498 Virginia Polytechnic Institut
690 371 411 Merit Network
1239 315 911 Sprint
20115 311 465 Charter Communications
27364 308 314 Armstrong Cable Services
3356 282 586 Level 3 Communications, LLC
5668 272 306 Century Telephone
25844 243 243 Skadden, Arps, Slate, Meagher
3320 219 280 Deutsche Telekom AG
4355 215 394 EarthLink, Inc.
7843 211 531 Adelphia Corp.
209 201 503 Qwest
14824 199 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:707 13:1 15:4 16:1 17:3
20:6 24:822 25:1 32:84 38:49 40:23
43:1 44:2 55:1 57:14 61:317 62:425
63:1883 64:1829 65:2113 66:2277 67:428 68:845
69:270 80:419 81:169 82:18 128:141 129:156
130:64 131:81 132:18 134:166 135:9 136:168
137:118 138:130 139:50 140:164 141:137 142:102
143:46 144:84 145:14 146:277 147:64 148:300
149:77 150:121 151:66 152:212 153:58 154:7
155:130 156:58 157:55 158:139 159:142 160:45
161:69 162:362 163:66 164:319 165:149 166:103
167:304 168:176 169:96 170:338 171:9 192:5413
193:2435 194:1976 195:1170 196:475 198:3619 199:2852
200:3014 202:3982 203:5278 204:2992 205:2057 206:2298
207:2513 208:2642 209:2767 210:914 211:382 212:932
213:926 214:15 215:22 216:3229 217:749 218:108
219:41 220:116 221:13 222:1
End of report
