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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 17 Jun, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126025
Prefixes after maximum aggregation: 78956
Unique aggregates announced to Internet: 59432
Total ASes present in the Internet Routing Table: 15335
Origin-only ASes present in the Internet Routing Table: 13295
Origin ASes announcing only one prefix: 6012
Transit ASes present in the Internet Routing Table: 2040
Transit-only ASes present in the Internet Routing Table: 71
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: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 17
Number of addresses announced to Internet: 1252094848
Equivalent to 74 /8s, 161 /16s and 115 /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: 55520
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21516
Total APNIC prefixes after maximum aggregation: 12570
Prefixes being announced from the APNIC address blocks: 19930
Unique aggregates announced from the APNIC address blocks: 12211
APNIC Region origin ASes present in the Internet Routing Table: 1821
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 300
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 115846816
Equivalent to 6 /8s, 231 /16s and 174 /24s
Percentage of available APNIC address space announced: 62.4
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: 77459
Total ARIN prefixes after maximum aggregation: 48150
Prefixes being announced from the ARIN address blocks: 55489
Unique aggregates announced from the ARIN address blocks: 16482
ARIN Region origin ASes present in the Internet Routing Table: 8467
ARIN Region origin ASes announcing only one prefix: 2887
ARIN Region transit ASes present in the Internet Routing Table: 811
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 192934144
Equivalent to 11 /8s, 127 /16s and 241 /24s
Percentage of available ARIN address space announced: 71.9
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: 21644
Total RIPE prefixes after maximum aggregation: 15985
Prefixes being announced from the RIPE address blocks: 18133
Unique aggregates announced from the RIPE address blocks: 12205
RIPE Region origin ASes present in the Internet Routing Table: 4639
RIPE Region origin ASes announcing only one prefix: 2514
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: 20
Number of RIPE addresses announced to Internet: 132173632
Equivalent to 7 /8s, 224 /16s and 207 /24s
Percentage of available RIPE address space announced: 71.6
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: 5405
Total LACNIC prefixes after maximum aggregation: 2251
Prefixes being announced from the LACNIC address blocks: 4840
Unique aggregates announced from the LACNIC address blocks: 2999
LACNIC Region origin ASes present in the Internet Routing Table: 336
LACNIC Region origin ASes announcing only one prefix: 86
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: 24
Number of LACNIC addresses announced to Internet: 12780544
Equivalent to 0 /8s, 195 /16s and 4 /24s
Percentage of available LACNIC address space announced: 38.1
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 1069 1071 762 Telstra Pty Ltd
4755 422 133 69 Videsh Sanchar Nigam Ltd. Aut
2907 374 1895 350 SINET Japan
17557 346 24 148 Pakistan Telecom
703 338 371 271 UUNET
2764 306 325 273 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 232 37 21 Satyam Infoway Ltd.,
4766 212 2475 159 Korea Internet Exchange for "
9800 185 300 60 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 169 12 27 BHARTI BT INTERNET LTD.
4739 139 58 127 Commerical Internet eXchange
9238 135 8 18 TATA ISP
7539 132 156 106 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 1546 8866 1091 UUNET Technologies, Inc.
7018 1336 7195 922 AT&T
7132 1016 6572 228 Southwestern Bell Internet Se
1239 952 3020 670 Sprint
3908 912 1548 477 Supernet, Inc.
189 683 340 296 Genuity
11305 647 170 72 Interland Incorporated
1 618 2604 420 GENUITY
7843 616 360 171 Adelphia Corp.
4323 604 525 175 Time Warner Communications, I
18566 599 160 8 Covad Communications
852 526 1124 415 Telus Advanced Communications
705 502 268 334 UUNET Technologies, Inc.
209 495 2106 299 Qwest
6197 493 343 195 BellSouth Network Solutions,
7066 486 204 259 Virginia Polytechnic Institut
6198 467 230 178 BellSouth Network Solutions,
20115 462 194 283 Charter Communications
690 448 65 293 Merit Network
2386 402 522 233 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 750 2174 637 UUNET - Commercial IP service
3301 303 1171 290 TeliaNet Sweden
3215 284 864 159 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
8220 224 384 212 COLT Internet - International
1257 223 315 185 SWIPnet Swedish IP Network
5400 204 143 123 BT Ignite European Backbone
5515 180 795 150 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 152 44 149 Romania Data Systems S.A.
3303 140 549 137 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 124 1315 114 BTnet UK Regional network
3246 119 382 115 Song Networks
3269 117 823 64 TELECOM ITALIA
3352 109 780 32 Ibernet, Internet Access Netw
2647 97 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 297 98 107 ImpSat
7303 238 37 57 Telecom Argentina Stet-France
8151 215 350 117 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 130 189 93 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 105 3 33 Red Universitaria Nacional
6147 98 70 21 Telefonica Del Peru
11992 88 8 37 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
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 72 12 36 Telefonica Empresas
4270 68 18 9 Red de Interconexion Universi
11830 67 5 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 1016 788 Southwestern Bell Internet Se
18566 599 591 Covad Communications
11305 647 575 Interland Incorporated
7843 616 445 Adelphia Corp.
3908 912 435 Supernet, Inc.
4323 604 429 Time Warner Communications, I
7018 1336 414 AT&T
189 683 387 Genuity
4755 422 353 Videsh Sanchar Nigam Ltd. Aut
27364 326 308 Armstrong Cable Services
1221 1069 307 Telstra Pty Ltd
6197 493 298 BellSouth Network Solutions,
4355 398 294 EarthLink, Inc.
6198 467 289 BellSouth Network Solutions,
6347 368 288 SAVVIS Communications Corpora
22927 298 285 TELEFONICA DE ARGENTINA
1239 952 282 Sprint
376 383 267 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
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
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 /8:20 /9:5 /10:8 /11:13 /12:53
/13:99 /14:256 /15:470 /16:7433 /17:1698 /18:2996
/19:8480 /20:8583 /21:6151 /22:9079 /23:10637 /24:69468
/25:156 /26:248 /27:56 /28:41 /29:26 /30:22
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 606 683 Genuity
18566 593 599 Covad Communications
11305 573 647 Interland Incorporated
3908 570 912 Supernet, Inc.
7018 467 1336 AT&T
702 458 750 UUNET - Commercial IP service
701 434 1546 UUNET Technologies, Inc.
690 406 448 Merit Network
7066 383 486 Virginia Polytechnic Institut
7843 376 616 Adelphia Corp.
6197 368 493 BellSouth Network Solutions,
6198 364 467 BellSouth Network Solutions,
1239 357 952 Sprint
20115 323 462 Charter Communications
27364 320 326 Armstrong Cable Services
22927 236 298 TELEFONICA DE ARGENTINA
1 225 618 GENUITY
19262 221 257 Verizon Global Networks
4355 217 398 EarthLink, Inc.
3215 213 284 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:704 13:1 15:6 16:1 17:3
20:7 24:869 25:1 32:95 38:40 40:21
44:2 57:17 61:267 62:348 63:1870 64:1950
65:1965 66:2584 67:177 68:374 69:199 80:367
81:129 128:141 129:175 130:47 131:81 132:26
134:174 135:4 136:116 137:107 138:109 139:64
140:167 141:121 142:94 143:42 144:107 145:16
146:273 147:97 148:288 149:61 150:44 151:70
152:231 153:60 154:7 155:116 156:53 157:45
158:127 159:140 160:43 161:75 162:126 163:75
164:313 165:142 166:94 167:319 168:408 169:62
170:312 171:8 192:5325 193:2438 194:1952 195:1045
196:479 198:3591 199:2715 200:3015 202:3791 203:5248
204:3001 205:2050 206:2333 207:2430 208:2601 209:2903
210:819 211:353 212:966 213:808 214:19 215:23
216:3524 217:628 218:91 219:43 220:95 221:3
End of report
