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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 22 May, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126064
Prefixes after maximum aggregation: 78706
Unique aggregates announced to Internet: 59139
Total ASes present in the Internet Routing Table: 15205
Origin-only ASes present in the Internet Routing Table: 13176
Origin ASes announcing only one prefix: 5962
Transit ASes present in the Internet Routing Table: 2029
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.8
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: 18
Number of addresses announced to Internet: 1230902976
Equivalent to 73 /8s, 94 /16s and 22 /24s
Percentage of available address space announced: 33.2
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 54836
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21379
Total APNIC prefixes after maximum aggregation: 12461
Prefixes being announced from the APNIC address blocks: 19776
Unique aggregates announced from the APNIC address blocks: 12011
APNIC Region origin ASes present in the Internet Routing Table: 1803
APNIC Region origin ASes announcing only one prefix: 525
APNIC Region transit ASes present in the Internet Routing Table: 302
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 113261216
Equivalent to 6 /8s, 192 /16s and 58 /24s
Percentage of available APNIC address space announced: 61.0
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: 77652
Total ARIN prefixes after maximum aggregation: 48119
Prefixes being announced from the ARIN address blocks: 55684
Unique aggregates announced from the ARIN address blocks: 16523
ARIN Region origin ASes present in the Internet Routing Table: 8403
ARIN Region origin ASes announcing only one prefix: 2866
ARIN Region transit ASes present in the Internet Routing Table: 811
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 191900416
Equivalent to 11 /8s, 112 /16s and 43 /24s
Percentage of available ARIN address space announced: 71.5
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: 21702
Total RIPE prefixes after maximum aggregation: 15885
Prefixes being announced from the RIPE address blocks: 18192
Unique aggregates announced from the RIPE address blocks: 12065
RIPE Region origin ASes present in the Internet Routing Table: 4594
RIPE Region origin ASes announcing only one prefix: 2487
RIPE Region transit ASes present in the Internet Routing Table: 816
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 131057536
Equivalent to 7 /8s, 207 /16s and 199 /24s
Percentage of available RIPE address space announced: 71.0
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: 5330
Total LACNIC prefixes after maximum aggregation: 2241
Prefixes being announced from the LACNIC address blocks: 4753
Unique aggregates announced from the LACNIC address blocks: 2997
LACNIC Region origin ASes present in the Internet Routing Table: 331
LACNIC Region origin ASes announcing only one prefix: 84
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: 24
Number of LACNIC addresses announced to Internet: 12573952
Equivalent to 0 /8s, 191 /16s and 221 /24s
Percentage of available LACNIC address space announced: 37.5
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 1078 1103 768 Telstra Pty Ltd
4755 407 133 71 Videsh Sanchar Nigam Ltd. Aut
2907 387 1976 364 SINET Japan
17557 375 26 152 Pakistan Telecom
703 348 374 277 UUNET
2764 315 342 280 connect.com.au pty ltd
4814 295 86 19 China Telecom (Group)
7474 269 290 202 Optus Communications Pty Ltd
17676 247 3814 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
4134 234 2042 117 Data Communications Bureau
9583 224 34 17 Satyam Infoway Ltd.,
4766 213 2475 159 Korea Internet Exchange for "
9443 183 58 83 Primus Telecommunications
9800 181 260 59 CHINA UNICOM
4739 137 57 125 Commerical Internet eXchange
9498 136 10 14 BHARTI BT INTERNET LTD.
9238 134 8 17 TATA ISP
7539 129 140 103 TANet2, sponsored by NSC, TAI
4716 127 729 121 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1564 8919 1103 UUNET Technologies, Inc.
7018 1346 7217 933 AT&T
4151 1230 691 60 USDA
7132 964 6475 207 Southwestern Bell Internet Se
1239 942 3010 662 Sprint
3908 931 1573 483 Supernet, Inc.
189 706 341 289 Genuity
1 666 2650 454 GENUITY
7843 663 347 176 Adelphia Corp.
4323 599 525 175 Time Warner Communications, I
18566 575 160 8 Covad Communications
705 540 291 235 UUNET Technologies, Inc.
852 536 1155 424 Telus Advanced Communications
2386 535 501 294 AT&T Data Communications Serv
209 487 2104 293 Qwest
6197 487 341 196 BellSouth Network Solutions,
7066 484 204 260 Virginia Polytechnic Institut
690 476 68 315 Merit Network
20115 474 195 288 Charter Communications
6198 462 229 176 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 753 2175 639 UUNET - Commercial IP service
3320 346 2004 228 Deutsche Telekom AG
3301 309 1157 296 TeliaNet Sweden
3215 303 852 174 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
1257 227 327 189 SWIPnet Swedish IP Network
8220 222 384 210 COLT Internet - International
719 215 307 124 LANLINK autonomous system
5400 203 112 113 BT Ignite European Backbone
5515 181 795 152 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
20858 165 17 3 This AS will be used to conne
8708 154 44 149 Romania Data Systems S.A.
3303 142 549 141 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 122 1299 112 BTnet UK Regional network
3269 116 819 63 TELECOM ITALIA
3246 113 381 111 Song Networks
3352 108 780 32 Ibernet, Internet Access Netw
2647 99 4129 39 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 300 98 108 ImpSat
7303 245 36 58 Telecom Argentina Stet-France
8151 212 350 118 UniNet S.A. de C.V.
11172 169 66 41 Servicios Alestra S.A de C.V
16814 137 9 18 NSS, S.A.
6503 133 189 98 AVANTEL, S.A.
10620 113 7 33 TVCABLE BOGOTA
11340 106 3 34 Red Universitaria Nacional
6147 96 62 20 Telefonica Del Peru
11992 87 8 36 Integrated Systems
8065 80 8 14 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
13999 68 36 8 Mega Cable S.A. de C.V.
7738 67 186 12 Telecomunicacoes da Bahia S.A
11830 66 4 27 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 1230 1170 USDA
7132 964 757 Southwestern Bell Internet Se
18566 575 567 Covad Communications
7843 663 487 Adelphia Corp.
3908 931 448 Supernet, Inc.
4323 599 424 Time Warner Communications, I
189 706 417 Genuity
7018 1346 413 AT&T
4755 407 336 Videsh Sanchar Nigam Ltd. Aut
1221 1078 310 Telstra Pty Ltd
705 540 305 UUNET Technologies, Inc.
6197 487 291 BellSouth Network Solutions,
4355 401 290 EarthLink, Inc.
6198 462 286 BellSouth Network Solutions,
6347 365 286 SAVVIS Communications Corpora
22927 298 285 TELEFONICA DE ARGENTINA
1239 942 280 Sprint
4814 295 276 China Telecom (Group)
27364 294 274 Armstrong Cable Services
2386 535 241 AT&T Data Communications Serv
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
192.16.52.0/24 1239 Sprint
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
192.136.135.0/24 1239 Sprint
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 /8:18 /9:5 /10:8 /11:13 /12:51
/13:98 /14:253 /15:474 /16:7425 /17:1681 /18:2976
/19:8427 /20:8398 /21:6084 /22:9003 /23:10647 /24:69986
/25:160 /26:218 /27:52 /28:26 /29:12 /30:23
/31:0 /32:26
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 629 706 Genuity
3908 582 931 Supernet, Inc.
18566 569 575 Covad Communications
7018 467 1346 AT&T
702 463 753 UUNET - Commercial IP service
701 435 1564 UUNET Technologies, Inc.
690 427 476 Merit Network
7843 427 663 Adelphia Corp.
7066 381 484 Virginia Polytechnic Institut
6197 363 487 BellSouth Network Solutions,
6198 361 462 BellSouth Network Solutions,
1239 352 942 Sprint
20115 335 474 Charter Communications
2386 315 535 AT&T Data Communications Serv
3320 289 346 Deutsche Telekom AG
27364 287 294 Armstrong Cable Services
4814 281 295 China Telecom (Group)
1 249 666 GENUITY
22927 236 298 TELEFONICA DE ARGENTINA
3215 226 303 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:701 13:1 15:4 16:1 17:3 20:8
24:831 25:1 32:87 38:122 40:19 44:2
55:1 57:17 61:447 62:574 63:1871 64:1767
65:1918 66:2445 67:171 68:382 69:133 80:345
81:130 128:144 129:179 130:44 131:80 132:11
133:1 134:176 135:4 136:116 137:109 138:108
139:64 140:135 141:117 142:93 143:44 144:103
145:14 146:269 147:95 148:289 149:70 150:44
151:79 152:241 153:57 154:7 155:108 156:47
157:40 158:126 159:144 160:39 161:75 162:141
163:75 164:308 165:144 166:93 167:335 168:407
169:61 170:311 171:7 192:5300 193:2415 194:1979
195:1047 196:463 198:3575 199:3893 200:2951 202:3761
203:5187 204:2995 205:2053 206:2375 207:2382 208:2624
209:2848 210:800 211:332 212:948 213:776 214:20
215:23 216:3261 217:619 218:90 219:36 220:96
221:2
End of report
