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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 12 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 125988
Prefixes after maximum aggregation: 78999
Unique aggregates announced to Internet: 59275
Total ASes present in the Internet Routing Table: 15312
Origin-only ASes present in the Internet Routing Table: 13277
Origin ASes announcing only one prefix: 6009
Transit ASes present in the Internet Routing Table: 2035
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 9
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1234236480
Equivalent to 73 /8s, 144 /16s and 244 /24s
Percentage of available address space announced: 33.3
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 55519
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21470
Total APNIC prefixes after maximum aggregation: 12597
Prefixes being announced from the APNIC address blocks: 19872
Unique aggregates announced from the APNIC address blocks: 12129
APNIC Region origin ASes present in the Internet Routing Table: 1812
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 296
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 114640800
Equivalent to 6 /8s, 213 /16s and 71 /24s
Percentage of available APNIC address space announced: 61.8
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: 77465
Total ARIN prefixes after maximum aggregation: 48203
Prefixes being announced from the ARIN address blocks: 55505
Unique aggregates announced from the ARIN address blocks: 16439
ARIN Region origin ASes present in the Internet Routing Table: 8472
ARIN Region origin ASes announcing only one prefix: 2892
ARIN Region transit ASes present in the Internet Routing Table: 810
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 192775424
Equivalent to 11 /8s, 125 /16s and 133 /24s
Percentage of available ARIN address space announced: 71.8
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, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 21661
Total RIPE prefixes after maximum aggregation: 15954
Prefixes being announced from the RIPE address blocks: 18138
Unique aggregates announced from the RIPE address blocks: 12175
RIPE Region origin ASes present in the Internet Routing Table: 4624
RIPE Region origin ASes announcing only one prefix: 2511
RIPE Region transit ASes present in the Internet Routing Table: 828
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 131943424
Equivalent to 7 /8s, 221 /16s and 76 /24s
Percentage of available RIPE address space announced: 71.5
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: 5383
Total LACNIC prefixes after maximum aggregation: 2245
Prefixes being announced from the LACNIC address blocks: 4796
Unique aggregates announced from the LACNIC address blocks: 2988
LACNIC Region origin ASes present in the Internet Routing Table: 334
LACNIC Region origin ASes announcing only one prefix: 85
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 12704256
Equivalent to 0 /8s, 193 /16s and 218 /24s
Percentage of available LACNIC address space announced: 37.9
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 1071 1087 764 Telstra Pty Ltd
4755 415 133 69 Videsh Sanchar Nigam Ltd. Aut
2907 374 1895 350 SINET Japan
17557 348 25 146 Pakistan Telecom
703 343 371 272 UUNET
2764 312 341 278 connect.com.au pty ltd
7474 274 306 205 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 243 773 210 DACOM Corporation
4134 240 2066 119 Data Communications Bureau
9583 226 35 19 Satyam Infoway Ltd.,
4766 212 2475 159 Korea Internet Exchange for "
9443 182 58 82 Primus Telecommunications
9800 179 260 58 CHINA UNICOM
9498 157 10 24 BHARTI BT INTERNET LTD.
4739 138 57 126 Commerical Internet eXchange
9238 135 8 18 TATA ISP
7539 129 156 103 TANet2, sponsored by NSC, TAI
4716 128 745 122 TTnet
9768 126 384 60 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1547 8913 1092 UUNET Technologies, Inc.
7018 1334 7196 924 AT&T
7132 1015 6572 227 Southwestern Bell Internet Se
1239 950 3018 668 Sprint
3908 916 1549 480 Supernet, Inc.
189 682 340 296 Genuity
11305 645 170 72 Interland Incorporated
7843 629 360 171 Adelphia Corp.
1 618 2604 420 GENUITY
4323 600 525 175 Time Warner Communications, I
18566 593 160 8 Covad Communications
852 525 1123 414 Telus Advanced Communications
705 509 273 332 UUNET Technologies, Inc.
209 494 2106 299 Qwest
6197 492 343 195 BellSouth Network Solutions,
7066 484 204 259 Virginia Polytechnic Institut
6198 465 230 177 BellSouth Network Solutions,
20115 462 194 283 Charter Communications
690 450 65 295 Merit Network
2386 405 514 235 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 749 2173 635 UUNET - Commercial IP service
3301 303 1171 290 TeliaNet Sweden
3215 298 881 169 France Telecom Transpac
3320 265 2004 227 Deutsche Telekom AG
719 264 307 125 LANLINK autonomous system
680 232 2053 229 DFN-IP service G-WiN
1257 223 315 185 SWIPnet Swedish IP Network
8220 223 384 211 COLT Internet - International
5400 222 139 131 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
5515 179 795 150 Sonera Solution Autonomous Sy
8708 152 44 149 Romania Data Systems S.A.
3303 140 549 137 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 123 1315 113 BTnet UK Regional network
3246 118 366 114 Song Networks
3269 118 823 65 TELECOM ITALIA
3352 109 780 32 Ibernet, Internet Access Netw
2647 98 4129 39 SITA
5511 95 177 76 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 295 98 109 ImpSat
7303 238 37 57 Telecom Argentina Stet-France
8151 214 350 117 UniNet S.A. de C.V.
11172 171 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 131 189 94 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 105 3 33 Red Universitaria Nacional
6147 99 70 21 Telefonica Del Peru
13999 86 36 8 Mega Cable S.A. de C.V.
11992 85 8 34 Integrated Systems
8065 82 9 16 Empresas Publicas de Medellin
6535 74 5 23 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 71 12 35 Telefonica Empresas
4270 68 18 9 Red de Interconexion Universi
11830 66 4 27 Instituto Costarricense de El
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
15034 62 5 32 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 1015 788 Southwestern Bell Internet Se
18566 593 585 Covad Communications
11305 645 573 Interland Incorporated
7843 629 458 Adelphia Corp.
3908 916 436 Supernet, Inc.
4323 600 425 Time Warner Communications, I
7018 1334 410 AT&T
189 682 386 Genuity
4755 415 346 Videsh Sanchar Nigam Ltd. Aut
27364 326 308 Armstrong Cable Services
1221 1071 307 Telstra Pty Ltd
6197 492 297 BellSouth Network Solutions,
4355 401 295 EarthLink, Inc.
6198 465 288 BellSouth Network Solutions,
6347 364 285 SAVVIS Communications Corpora
22927 298 285 TELEFONICA DE ARGENTINA
1239 950 282 Sprint
376 384 268 Reseau Interordinateurs Scien
22909 276 264 Comcast Cable Corporation
17676 250 231 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65516 PRIVATE 61.232.70.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.71.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.72.0/22 17621 China Netcom Corp.
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64811 PRIVATE 211.154.136.0/23 4813 China Telecom(Group)
64811 PRIVATE 211.154.138.0/23 4813 China Telecom(Group)
64811 PRIVATE 211.154.152.0/23 4813 China Telecom(Group)
64811 PRIVATE 211.154.154.0/23 4813 China Telecom(Group)
65501 PRIVATE 218.144.170.128/26 4766 Korea Internet Excha
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
192.153.136.0/21 568 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 /12:53
/13:99 /14:256 /15:469 /16:7425 /17:1690 /18:2996
/19:8468 /20:8553 /21:6122 /22:9078 /23:10661 /24:69486
/25:163 /26:253 /27:56 /28:40 /29:26 /30:23
/31:0 /32:26
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 605 682 Genuity
18566 587 593 Covad Communications
3908 573 916 Supernet, Inc.
11305 571 645 Interland Incorporated
7018 464 1334 AT&T
702 458 749 UUNET - Commercial IP service
701 432 1547 UUNET Technologies, Inc.
690 408 450 Merit Network
7843 389 629 Adelphia Corp.
7066 381 484 Virginia Polytechnic Institut
6197 368 492 BellSouth Network Solutions,
6198 363 465 BellSouth Network Solutions,
1239 358 950 Sprint
20115 323 462 Charter Communications
27364 320 326 Armstrong Cable Services
22927 236 298 TELEFONICA DE ARGENTINA
1 225 618 GENUITY
3215 221 298 France Telecom Transpac
19262 221 257 Verizon Global Networks
4355 219 401 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:702 13:1 15:4 16:1 17:3
20:8 24:867 25:1 32:87 38:60 40:21
44:2 57:17 61:263 62:341 63:1875 64:1946
65:1962 66:2579 67:177 68:382 69:200 80:358
81:129 128:141 129:175 130:47 131:80 132:26
134:173 135:4 136:116 137:107 138:109 139:65
140:205 141:122 142:94 143:43 144:107 145:16
146:275 147:97 148:288 149:61 150:44 151:70
152:231 153:60 154:3 155:116 156:54 157:45
158:127 159:138 160:43 161:76 162:131 163:77
164:311 165:143 166:93 167:319 168:408 169:61
170:312 171:8 192:5329 193:2455 194:1956 195:1053
196:470 198:3561 199:2721 200:2982 202:3785 203:5287
204:3001 205:2048 206:2371 207:2414 208:2595 209:2897
210:809 211:326 212:977 213:804 214:20 215:24
216:3534 217:629 218:88 219:44 220:94 221:3
End of report
