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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 26 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121542
Prefixes after maximum aggregation: 77344
Unique aggregates announced to Internet: 57960
Total ASes present in the Internet Routing Table: 14706
Origin-only ASes present in the Internet Routing Table: 12774
Origin ASes announcing only one prefix: 5764
Transit ASes present in the Internet Routing Table: 1932
Transit-only ASes present in the Internet Routing Table: 67
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 15
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 24
Number of addresses announced to Internet: 1199237645
Equivalent to 71 /8s, 122 /16s and 234 /24s
Percentage of available address space announced: 32.4
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 56810
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20300
Total APNIC prefixes after maximum aggregation: 11943
Prefixes being announced from the APNIC address blocks: 18891
Unique aggregates announced from the APNIC address blocks: 11591
APNIC Region origin ASes present in the Internet Routing Table: 1738
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 294
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 106369184
Equivalent to 6 /8s, 87 /16s and 16 /24s
Percentage of available APNIC address space announced: 56.4
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74850
Total ARIN prefixes after maximum aggregation: 47650
Prefixes being announced from the ARIN address blocks: 53091
Unique aggregates announced from the ARIN address blocks: 16640
ARIN Region origin ASes present in the Internet Routing Table: 8186
ARIN Region origin ASes announcing only one prefix: 2762
ARIN Region transit ASes present in the Internet Routing Table: 773
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187407296
Equivalent to 11 /8s, 43 /16s and 155 /24s
Percentage of available ARIN address space announced: 69.8
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
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: 21077
Total RIPE prefixes after maximum aggregation: 15547
Prefixes being announced from the RIPE address blocks: 17611
Unique aggregates announced from the RIPE address blocks: 11003
RIPE Region origin ASes present in the Internet Routing Table: 4391
RIPE Region origin ASes announcing only one prefix: 2397
RIPE Region transit ASes present in the Internet Routing Table: 785
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 127366016
Equivalent to 7 /8s, 151 /16s and 115 /24s
Percentage of available RIPE address space announced: 75.9
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: 5301
Total LACNIC prefixes after maximum aggregation: 2204
Prefixes being announced from the LACNIC address blocks: 4650
Unique aggregates announced from the LACNIC address blocks: 3025
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 83
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 11969536
Equivalent to 0 /8s, 182 /16s and 164 /24s
Percentage of available LACNIC address space announced: 71.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1113 1135 813 Telstra Pty Ltd
703 417 369 319 UUNET
2907 395 1978 372 SINET Japan
17557 349 25 135 Pakistan Telecom
2764 327 340 294 connect.com.au pty ltd
7474 307 276 208 Optus Communications Pty Ltd
4134 305 2653 101 Data Communications Bureau
4814 264 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 231 133 72 Videsh Sanchar Nigam Ltd. Aut
17676 229 3526 24 XTAGE CORPORATION
9583 223 33 13 Satyam Infoway Ltd.,
4766 207 2074 154 Korea Internet Exchange for "
9443 180 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 150 9 14 World Net & Services Co., Ltd
9238 133 8 20 TATA ISP
4716 129 737 123 TTnet
4739 128 57 116 Commerical Internet eXchange
9768 128 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1614 8887 1150 UUNET Technologies, Inc.
7018 1427 7192 968 AT&T
3908 1244 1589 484 Supernet, Inc.
1239 972 3135 686 Sprint
1 671 8087 435 GENUITY
852 603 1107 445 Telus Advanced Communications
7046 568 826 240 UUNET Technologies, Inc.
7843 564 402 209 Adelphia Corp.
4323 532 473 168 Time Warner Communications, I
4151 529 691 58 USDA
209 525 2091 333 Qwest
3561 501 2344 342 Cable & Wireless USA
690 498 73 308 Merit Network
7066 493 204 254 Virginia Polytechnic Institut
18566 488 114 7 Covad Communications
6197 479 449 137 BellSouth Network Solutions,
376 462 375 111 Reseau Interordinateurs Scien
705 450 165 196 UUNET Technologies, Inc.
2386 445 472 238 AT&T Data Communications Serv
6198 428 192 196 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 790 2248 652 UUNET - Commercial IP service
3301 316 1143 304 TeliaNet Sweden
3215 314 818 173 France Telecom Transpac
3320 263 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 220 370 197 SWIPnet Swedish IP Network
719 201 306 128 LANLINK autonomous system
5515 187 779 161 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 161 70 95 BT Ignite European Backbone
8708 151 42 148 Romania Data Systems S.A.
20858 148 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
12302 123 18 30 MobiFon S.A.
8220 122 174 113 COLT Internet - International
2856 120 1299 110 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 105 360 102 Song Networks
3352 99 652 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 105 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 208 317 114 UniNet S.A. de C.V.
11172 161 82 33 Servicios Alestra S.A de C.V
6503 158 207 110 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
1916 73 306 44 Fundacao de Amparo a Pesquisa
6147 72 62 21 Telefonica Del Peru
6535 72 5 23 Chilesat Servicios Empresari
8065 72 6 18 Empresas Publicas de Medellin
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
11992 69 7 30 Integrated Systems
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
7984 62 11 41 Global One Colombia
11830 60 4 21 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1244 760 Supernet, Inc.
18566 488 481 Covad Communications
4151 529 471 USDA
7018 1427 459 AT&T
4323 532 364 Time Warner Communications, I
7843 564 355 Adelphia Corp.
376 462 351 Reseau Interordinateurs Scien
6197 479 342 BellSouth Network Solutions,
7046 568 328 UUNET Technologies, Inc.
11492 310 309 Cable One
1221 1113 300 Telstra Pty Ltd
6347 370 292 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 972 286 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 450 254 UUNET Technologies, Inc.
4814 264 249 China Telecom (Group)
7066 493 239 Virginia Polytechnic Institut
1 671 236 GENUITY
6198 428 232 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 66.205.199.0/24 25752 Neopolitan Networks
64513 PRIVATE 66.205.200.0/24 25752 Neopolitan Networks
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
172.200.0.0/16 1668 GNN Hosting Service
172.202.0.0/16 1668 GNN Hosting Service
172.203.0.0/16 1668 GNN Hosting Service
192.31.242.0/24 771 NASA Ames Research Center
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
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:3 /10:8 /11:12 /12:46
/13:92 /14:239 /15:446 /16:7344 /17:1594 /18:2893
/19:8154 /20:8067 /21:5785 /22:8758 /23:10493 /24:66729
/25:168 /26:174 /27:101 /28:97 /29:61 /30:161
/31:2 /32:97
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 815 1244 Supernet, Inc.
7018 525 1427 AT&T
702 495 790 UUNET - Commercial IP service
18566 483 488 Covad Communications
701 477 1614 UUNET Technologies, Inc.
690 447 498 Merit Network
7066 392 493 Virginia Polytechnic Institut
1239 363 972 Sprint
6197 355 479 BellSouth Network Solutions,
6198 337 428 BellSouth Network Solutions,
7843 334 564 Adelphia Corp.
11492 309 310 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
6140 271 284 ImpSat
7046 271 568 UUNET Technologies, Inc.
20115 257 382 Charter Communications
2386 242 445 AT&T Data Communications Serv
3215 239 314 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
4355 229 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:655 13:1 15:4 17:2 20:9 24:845
25:1 32:83 34:1 38:54 40:18 44:2
55:1 57:15 61:454 62:503 63:1909 64:1385
65:1886 66:1451 67:212 68:281 69:51 80:318
81:91 128:142 129:189 130:40 131:81 132:13
133:2 134:146 135:4 136:111 137:116 138:105
139:74 140:104 141:122 142:94 143:46 144:111
145:18 146:253 147:85 148:268 149:73 150:44
151:110 152:252 153:51 154:3 155:107 156:42
157:39 158:123 159:142 160:34 161:58 162:135
163:79 164:270 165:138 166:80 167:323 168:388
169:54 170:304 171:8 192:5279 193:2427 194:2003
195:962 196:469 198:3593 199:3203 200:2884 202:3597
203:5053 204:3023 205:2036 206:2405 207:2386 208:2691
209:2779 210:733 211:328 212:944 213:736 214:20
215:22 216:3204 217:595 218:78 219:14 220:52
End of report
