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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 08 Jul, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126205
Prefixes after maximum aggregation: 78994
Unique aggregates announced to Internet: 59449
Total ASes present in the Internet Routing Table: 15443
Origin-only ASes present in the Internet Routing Table: 13390
Origin ASes announcing only one prefix: 6072
Transit ASes present in the Internet Routing Table: 2053
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1236587616
Equivalent to 73 /8s, 180 /16s and 212 /24s
Percentage of available address space announced: 33.4
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 56113
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21346
Total APNIC prefixes after maximum aggregation: 12443
Prefixes being announced from the APNIC address blocks: 19762
Unique aggregates announced from the APNIC address blocks: 11863
APNIC Region origin ASes present in the Internet Routing Table: 1839
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 298
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 116646944
Equivalent to 6 /8s, 243 /16s and 228 /24s
Percentage of available APNIC address space announced: 62.8
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: 77206
Total ARIN prefixes after maximum aggregation: 48131
Prefixes being announced from the ARIN address blocks: 55093
Unique aggregates announced from the ARIN address blocks: 16567
ARIN Region origin ASes present in the Internet Routing Table: 8489
ARIN Region origin ASes announcing only one prefix: 2896
ARIN Region transit ASes present in the Internet Routing Table: 816
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193992704
Equivalent to 11 /8s, 144 /16s and 24 /24s
Percentage of available ARIN address space announced: 72.3
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: 22265
Total RIPE prefixes after maximum aggregation: 16125
Prefixes being announced from the RIPE address blocks: 18699
Unique aggregates announced from the RIPE address blocks: 12379
RIPE Region origin ASes present in the Internet Routing Table: 4704
RIPE Region origin ASes announcing only one prefix: 2561
RIPE Region transit ASes present in the Internet Routing Table: 838
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 133019584
Equivalent to 7 /8s, 237 /16s and 183 /24s
Percentage of available RIPE address space announced: 72.1
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
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: 5386
Total LACNIC prefixes after maximum aggregation: 2295
Prefixes being announced from the LACNIC address blocks: 4814
Unique aggregates announced from the LACNIC address blocks: 3076
LACNIC Region origin ASes present in the Internet Routing Table: 339
LACNIC Region origin ASes announcing only one prefix: 90
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 12817152
Equivalent to 0 /8s, 195 /16s and 147 /24s
Percentage of available LACNIC address space announced: 38.2
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 1053 1069 744 Telstra Pty Ltd
4755 404 133 59 Videsh Sanchar Nigam Ltd. Aut
2907 373 1895 349 SINET Japan
703 333 370 266 UUNET
2764 306 325 273 connect.com.au pty ltd
7474 268 306 200 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 243 777 210 DACOM Corporation
9583 234 37 22 Satyam Infoway Ltd.,
4134 228 1916 113 Data Communications Bureau
4766 222 2475 166 Korea Internet Exchange for "
9800 190 307 58 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9929 169 170 34 China Netcom Corp.
4538 168 1506 21 China Education and Research
9498 168 11 28 BHARTI BT INTERNET LTD.
4739 141 58 130 Commerical Internet eXchange
9238 138 8 20 TATA ISP
4716 132 745 126 TTnet
7539 129 155 103 TANet2, sponsored by NSC, TAI
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1527 8816 1073 UUNET Technologies, Inc.
7018 1340 7180 925 AT&T
1239 950 2998 665 Sprint
3908 901 1517 471 Supernet, Inc.
7132 838 6606 232 Southwestern Bell Internet Se
189 690 372 299 Genuity
18566 620 160 8 Covad Communications
4323 610 526 177 Time Warner Communications, I
7843 604 362 234 Adelphia Corp.
1 582 2472 387 GENUITY
11305 549 170 72 Interland Incorporated
852 527 1124 417 Telus Advanced Communications
6197 523 366 219 BellSouth Network Solutions,
209 519 2127 305 Qwest
705 509 271 326 UUNET Technologies, Inc.
7066 489 204 261 Virginia Polytechnic Institut
6198 478 267 182 BellSouth Network Solutions,
20115 460 195 282 Charter Communications
690 449 64 295 Merit Network
2386 408 541 230 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1020 2170 627 UUNET - Commercial IP service
3301 293 1169 281 TeliaNet Sweden
3320 268 2004 229 Deutsche Telekom AG
719 266 307 125 LANLINK autonomous system
3215 244 801 139 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
8220 232 386 220 COLT Internet - International
1257 224 307 186 SWIPnet Swedish IP Network
5400 199 142 116 BT Ignite European Backbone
5515 187 795 150 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 154 44 150 Romania Data Systems S.A.
3303 141 549 138 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 126 1315 116 BTnet UK Regional network
3246 122 373 118 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 107 796 32 Ibernet, Internet Access Netw
6746 89 12 75 Dynamic Network Technologies,
6830 86 225 13 UPC Distribution Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 298 98 106 ImpSat
7303 236 37 59 Telecom Argentina Stet-France
8151 216 350 116 UniNet S.A. de C.V.
11172 171 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
11340 134 3 46 Red Universitaria Nacional
6503 133 189 96 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
6147 98 70 20 Telefonica Del Peru
11992 88 8 38 Integrated Systems
13999 86 36 8 Mega Cable S.A. de C.V.
8065 80 9 16 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 74 14 38 Telefonica Empresas
1916 73 306 43 Fundacao de Amparo a Pesquisa
11830 70 5 29 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7927 64 6 39 Global One Venezuela
7984 60 12 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 620 612 Covad Communications
7132 838 606 Southwestern Bell Internet Se
11305 549 477 Interland Incorporated
4323 610 433 Time Warner Communications, I
3908 901 430 Supernet, Inc.
7018 1340 415 AT&T
702 1020 393 UUNET - Commercial IP service
189 690 391 Genuity
7843 604 370 Adelphia Corp.
4755 404 345 Videsh Sanchar Nigam Ltd. Aut
1221 1053 309 Telstra Pty Ltd
6197 523 304 BellSouth Network Solutions,
6198 478 296 BellSouth Network Solutions,
4355 404 295 EarthLink, Inc.
27364 305 287 Armstrong Cable Services
1239 950 285 Sprint
6347 363 282 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
25844 258 256 Skadden, Arps, Slate, Meagher
376 376 250 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64732 PRIVATE 202.38.166.0/23 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
172.208.0.0/14 1668 GNN Hosting Service
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
192.149.62.0/23 29839 RegistryPro, Inc.
192.153.136.0/21 568 DISO-UNRRA
192.158.254.0/24 705 UUNET Technologies, Inc.
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 /9:5 /10:8 /11:13 /12:54
/13:97 /14:259 /15:473 /16:7422 /17:1722 /18:3046
/19:8536 /20:8585 /21:6273 /22:9180 /23:10724 /24:69159
/25:175 /26:271 /27:73 /28:39 /29:22 /30:23
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 715 1020 UUNET - Commercial IP service
18566 614 620 Covad Communications
189 610 690 Genuity
3908 576 901 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 472 1340 AT&T
701 431 1527 UUNET Technologies, Inc.
690 406 449 Merit Network
6197 394 523 BellSouth Network Solutions,
7066 385 489 Virginia Polytechnic Institut
6198 373 478 BellSouth Network Solutions,
7843 364 604 Adelphia Corp.
1239 356 950 Sprint
20115 320 460 Charter Communications
27364 299 305 Armstrong Cable Services
25844 258 258 Skadden, Arps, Slate, Meagher
1 221 582 GENUITY
4355 216 404 EarthLink, Inc.
3320 209 268 Deutsche Telekom AG
705 208 509 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:697 13:1 15:4 16:1 17:3
20:7 24:854 25:1 32:95 38:42 40:21
44:2 57:15 61:270 62:357 63:1871 64:1768
65:1962 66:2556 67:194 68:384 69:174 80:395
81:120 82:3 128:145 129:164 130:49 131:79
132:26 134:173 135:4 136:114 137:105 138:114
139:65 140:168 141:117 142:94 143:44 144:101
145:13 146:276 147:95 148:288 149:62 150:83
151:70 152:233 153:101 154:3 155:119 156:57
157:46 158:129 159:140 160:45 161:75 162:375
163:80 164:320 165:143 166:95 167:322 168:174
169:105 170:320 171:8 192:5327 193:2607 194:1976
195:1094 196:470 198:3589 199:2702 200:2955 202:3533
203:5083 204:2980 205:2044 206:2326 207:2432 208:2603
209:2853 210:838 211:360 212:991 213:869 214:19
215:23 216:3431 217:654 218:93 219:64 220:97
221:8
End of report
