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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 02 Jul, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126545
Prefixes after maximum aggregation: 79138
Unique aggregates announced to Internet: 60046
Total ASes present in the Internet Routing Table: 15429
Origin-only ASes present in the Internet Routing Table: 13370
Origin ASes announcing only one prefix: 6064
Transit ASes present in the Internet Routing Table: 2059
Transit-only ASes present in the Internet Routing Table: 81
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: 1252903456
Equivalent to 74 /8s, 173 /16s and 202 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.4
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 55978
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21723
Total APNIC prefixes after maximum aggregation: 12610
Prefixes being announced from the APNIC address blocks: 20192
Unique aggregates announced from the APNIC address blocks: 12340
APNIC Region origin ASes present in the Internet Routing Table: 1835
APNIC Region origin ASes announcing only one prefix: 524
APNIC Region transit ASes present in the Internet Routing Table: 301
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 116726816
Equivalent to 6 /8s, 245 /16s and 28 /24s
Percentage of available APNIC address space announced: 62.9
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: 77196
Total ARIN prefixes after maximum aggregation: 48132
Prefixes being announced from the ARIN address blocks: 55076
Unique aggregates announced from the ARIN address blocks: 16540
ARIN Region origin ASes present in the Internet Routing Table: 8487
ARIN Region origin ASes announcing only one prefix: 2898
ARIN Region transit ASes present in the Internet Routing Table: 818
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193889536
Equivalent to 11 /8s, 142 /16s and 133 /24s
Percentage of available ARIN address space announced: 72.2
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, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 22260
Total RIPE prefixes after maximum aggregation: 16118
Prefixes being announced from the RIPE address blocks: 18650
Unique aggregates announced from the RIPE address blocks: 12361
RIPE Region origin ASes present in the Internet Routing Table: 4688
RIPE Region origin ASes announcing only one prefix: 2553
RIPE Region transit ASes present in the Internet Routing Table: 840
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132773504
Equivalent to 7 /8s, 233 /16s and 246 /24s
Percentage of available RIPE address space announced: 71.9
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
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: 5364
Total LACNIC prefixes after maximum aggregation: 2278
Prefixes being announced from the LACNIC address blocks: 4812
Unique aggregates announced from the LACNIC address blocks: 3046
LACNIC Region origin ASes present in the Internet Routing Table: 338
LACNIC Region origin ASes announcing only one prefix: 89
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12814080
Equivalent to 0 /8s, 195 /16s and 135 /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 1052 1069 744 Telstra Pty Ltd
4755 404 132 60 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 350 SINET Japan
17557 345 24 151 Pakistan Telecom
703 336 370 268 UUNET
2764 306 325 273 connect.com.au pty ltd
7474 269 306 201 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
9583 232 37 21 Satyam Infoway Ltd.,
4134 227 1916 113 Data Communications Bureau
4766 221 2475 165 Korea Internet Exchange for "
9800 189 306 59 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 168 11 28 BHARTI BT INTERNET LTD.
9929 156 169 32 China Netcom Corp.
4739 139 58 128 Commerical Internet eXchange
9238 138 8 20 TATA ISP
4716 132 745 126 TTnet
9768 126 384 60 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1532 8816 1078 UUNET Technologies, Inc.
7018 1340 7184 925 AT&T
1239 956 2996 671 Sprint
3908 916 1535 482 Supernet, Inc.
7132 838 6606 232 Southwestern Bell Internet Se
189 687 372 299 Genuity
7843 634 360 202 Adelphia Corp.
4323 607 526 176 Time Warner Communications, I
18566 606 160 8 Covad Communications
1 581 2471 386 GENUITY
11305 549 170 72 Interland Incorporated
852 527 1124 417 Telus Advanced Communications
6197 522 366 218 BellSouth Network Solutions,
209 515 2110 303 Qwest
705 509 271 330 UUNET Technologies, Inc.
7066 488 204 261 Virginia Polytechnic Institut
6198 480 267 184 BellSouth Network Solutions,
20115 459 194 281 Charter Communications
690 448 64 294 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 1022 2171 628 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 253 834 147 France Telecom Transpac
8220 233 386 221 COLT Internet - International
680 232 2053 229 DFN-IP service G-WiN
1257 226 312 188 SWIPnet Swedish IP Network
5400 203 140 121 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 124 1315 115 BTnet UK Regional network
3246 120 384 116 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 110 796 32 Ibernet, Internet Access Netw
5511 103 180 80 France Telecom
2647 98 4129 40 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 298 98 106 ImpSat
7303 235 37 59 Telecom Argentina Stet-France
8151 212 334 114 UniNet S.A. de C.V.
11172 170 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 134 205 96 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 100 2 36 Red Universitaria Nacional
6147 99 70 21 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 72 12 36 Telefonica Empresas
1916 71 290 42 Fundacao de Amparo a Pesquisa
4270 68 18 9 Red de Interconexion Universi
11830 68 5 28 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 6 39 Global One Venezuela
15034 62 5 34 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 838 606 Southwestern Bell Internet Se
18566 606 598 Covad Communications
11305 549 477 Interland Incorporated
3908 916 434 Supernet, Inc.
7843 634 432 Adelphia Corp.
4323 607 431 Time Warner Communications, I
7018 1340 415 AT&T
702 1022 394 UUNET - Commercial IP service
189 687 388 Genuity
4755 404 344 Videsh Sanchar Nigam Ltd. Aut
1221 1052 308 Telstra Pty Ltd
6197 522 304 BellSouth Network Solutions,
27364 319 301 Armstrong Cable Services
6198 480 296 BellSouth Network Solutions,
4355 400 291 EarthLink, Inc.
1239 956 285 Sprint
6347 363 282 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
376 383 254 Reseau Interordinateurs Scien
25844 255 247 Skadden, Arps, Slate, Meagher
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 /9:7 /10:8 /11:13 /12:53
/13:98 /14:256 /15:470 /16:7422 /17:1741 /18:3032
/19:8516 /20:8520 /21:6236 /22:9176 /23:10737 /24:69666
/25:137 /26:257 /27:67 /28:41 /29:23 /30:23
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 715 1022 UUNET - Commercial IP service
189 607 687 Genuity
18566 600 606 Covad Communications
3908 580 916 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 469 1340 AT&T
701 431 1532 UUNET Technologies, Inc.
690 406 448 Merit Network
7843 397 634 Adelphia Corp.
6197 393 522 BellSouth Network Solutions,
7066 384 488 Virginia Polytechnic Institut
6198 373 480 BellSouth Network Solutions,
1239 362 956 Sprint
20115 319 459 Charter Communications
27364 313 319 Armstrong Cable Services
25844 255 255 Skadden, Arps, Slate, Meagher
1 221 581 GENUITY
4355 215 400 EarthLink, Inc.
3320 209 268 Deutsche Telekom AG
705 207 509 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:701 13:1 15:4 16:1 17:3 20:6
24:877 25:1 32:95 38:43 40:21 44:2
57:17 61:262 62:354 63:1869 64:1768 65:1959
66:2545 67:192 68:388 69:151 80:402 81:117
82:2 128:142 129:166 130:52 131:80 132:26
134:175 135:4 136:113 137:106 138:110 139:65
140:141 141:120 142:94 143:44 144:108 145:13
146:279 147:95 148:286 149:62 150:80 151:69
152:233 153:101 154:7 155:119 156:57 157:46
158:129 159:139 160:45 161:75 162:378 163:82
164:319 165:141 166:95 167:320 168:174 169:104
170:318 171:8 192:5336 193:2585 194:1975 195:1092
196:471 198:3591 199:2704 200:2948 202:3878 203:5261
204:2984 205:2040 206:2340 207:2443 208:2602 209:2889
210:860 211:369 212:991 213:862 214:19 215:23
216:3413 217:644 218:91 219:55 220:96 221:3
End of report
