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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 01 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127940
Prefixes after maximum aggregation: 80013
Unique aggregates announced to Internet: 61258
Total ASes present in the Internet Routing Table: 15743
Origin-only ASes present in the Internet Routing Table: 13649
Origin ASes announcing only one prefix: 6211
Transit ASes present in the Internet Routing Table: 2094
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: 26
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1240398880
Equivalent to 73 /8s, 238 /16s and 252 /24s
Percentage of available address space announced: 33.5
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56919
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22318
Total APNIC prefixes after maximum aggregation: 12680
Prefixes being announced from the APNIC address blocks: 20745
Unique aggregates announced from the APNIC address blocks: 12269
APNIC Region origin ASes present in the Internet Routing Table: 1888
APNIC Region origin ASes announcing only one prefix: 544
APNIC Region transit ASes present in the Internet Routing Table: 312
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 121109504
Equivalent to 7 /8s, 55 /16s and 252 /24s
Percentage of available APNIC address space announced: 65.3
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: 77904
Total ARIN prefixes after maximum aggregation: 48638
Prefixes being announced from the ARIN address blocks: 55584
Unique aggregates announced from the ARIN address blocks: 17254
ARIN Region origin ASes present in the Internet Routing Table: 8619
ARIN Region origin ASes announcing only one prefix: 2951
ARIN Region transit ASes present in the Internet Routing Table: 831
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 196374560
Equivalent to 11 /8s, 180 /16s and 112 /24s
Percentage of available ARIN address space announced: 73.2
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: 22359
Total RIPE prefixes after maximum aggregation: 16400
Prefixes being announced from the RIPE address blocks: 18983
Unique aggregates announced from the RIPE address blocks: 12714
RIPE Region origin ASes present in the Internet Routing Table: 4818
RIPE Region origin ASes announcing only one prefix: 2615
RIPE Region transit ASes present in the Internet Routing Table: 851
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 135197504
Equivalent to 8 /8s, 14 /16s and 243 /24s
Percentage of available RIPE address space announced: 73.3
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: 5357
Total LACNIC prefixes after maximum aggregation: 2295
Prefixes being announced from the LACNIC address blocks: 4813
Unique aggregates announced from the LACNIC address blocks: 3129
LACNIC Region origin ASes present in the Internet Routing Table: 345
LACNIC Region origin ASes announcing only one prefix: 101
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13040384
Equivalent to 0 /8s, 198 /16s and 251 /24s
Percentage of available LACNIC address space announced: 38.9
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 979 1124 692 Telstra Pty Ltd
4755 406 135 72 Videsh Sanchar Nigam Ltd. Aut
2907 375 1911 349 SINET Japan
703 338 356 267 UUNET
4134 333 2220 112 Data Communications Bureau
17557 303 26 137 Pakistan Telecom
2764 299 323 267 connect.com.au pty ltd
7474 263 306 204 Optus Communications Pty Ltd
17676 254 3910 22 XTAGE CORPORATION
9583 243 37 21 Satyam Infoway Ltd.,
4766 238 2461 170 Korea Internet Exchange for "
3786 237 773 203 DACOM Corporation
9800 199 326 57 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 180 16 30 BHARTI BT INTERNET LTD.
4538 170 1538 21 China Education and Research
9929 170 155 34 China Netcom Corp.
17642 156 41 117 RequestDSL BGP AS# for Sydney
9942 155 69 100 COMindico Australia
9238 140 9 21 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1484 8769 1042 UUNET Technologies, Inc.
7018 1386 7136 982 AT&T
3908 925 1573 493 Supernet, Inc.
1239 893 3031 642 Sprint
189 673 451 333 Genuity
18566 672 160 8 Covad Communications
4323 626 551 179 Time Warner Communications, I
6197 571 387 248 BellSouth Network Solutions,
7843 546 419 182 Adelphia Corp.
852 516 1123 410 Telus Advanced Communications
209 514 2129 298 Qwest
6198 497 277 197 BellSouth Network Solutions,
7066 491 205 262 Virginia Polytechnic Institut
20115 480 200 290 Charter Communications
3356 476 10675 395 Level 3 Communications, LLC
1 467 1056 301 GENUITY
705 463 182 289 UUNET Technologies, Inc.
7132 413 6657 240 Southwestern Bell Internet Se
690 410 59 276 Merit Network
4355 392 340 111 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 729 2123 604 UUNET - Commercial IP service
3301 294 1168 280 TeliaNet Sweden
3320 268 1989 228 Deutsche Telekom AG
1257 249 375 190 SWIPnet Swedish IP Network
8220 245 431 234 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
3215 213 736 120 France Telecom Transpac
719 193 307 122 LANLINK autonomous system
5515 185 779 148 Sonera Solution Autonomous Sy
5400 180 175 131 BT Ignite European Backbone
786 178 1858 178 The JANET IP Service
8708 159 111 155 Romania Data Systems S.A.
3303 143 540 140 Swisscom Ltd
12302 126 18 33 MobiFon S.A.
3246 122 360 120 Song Networks
3269 117 821 64 TELECOM ITALIA
2856 112 1295 103 BTnet UK Regional network
3352 111 828 31 Ibernet, Internet Access Netw
2647 101 4129 45 SITA
6746 88 12 75 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 319 103 114 ImpSat
7303 236 39 55 Telecom Argentina Stet-France
8151 222 334 117 UniNet S.A. de C.V.
11172 187 77 43 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 133 205 94 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 108 3 39 Red Universitaria Nacional
11992 86 8 36 Integrated Systems
6147 83 70 20 Telefonica Del Peru
8065 80 8 17 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 75 14 38 Telefonica Empresas
11830 74 6 29 Instituto Costarricense de El
1916 73 306 43 Fundacao de Amparo a Pesquisa
4270 68 18 9 Red de Interconexion Universi
7927 67 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
7984 59 12 40 Global One Colombia
13999 56 36 8 Mega Cable S.A. de C.V.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 672 664 Covad Communications
4323 626 447 Time Warner Communications, I
3908 925 432 Supernet, Inc.
7018 1386 404 AT&T
7843 546 364 Adelphia Corp.
189 673 340 Genuity
4755 406 334 Videsh Sanchar Nigam Ltd. Aut
6197 571 323 BellSouth Network Solutions,
11305 358 320 Interland Incorporated
6198 497 300 BellSouth Network Solutions,
27364 317 294 Armstrong Cable Services
1221 979 287 Telstra Pty Ltd
4355 392 281 EarthLink, Inc.
6347 354 275 SAVVIS Communications Corpora
22909 291 273 Comcast Cable Corporation
1239 893 251 Sprint
226 286 244 Los Nettos
25844 241 239 Skadden, Arps, Slate, Meagher
376 353 238 Reseau Interordinateurs Scien
17676 254 232 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 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
192.172.0.0/19 568 DISO-UNRRA
192.228.80.0/24 30122 INTERNET SOFTWARE CONSORTIUM,
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:4 /10:6 /11:12 /12:55
/13:98 /14:262 /15:475 /16:7418 /17:1737 /18:3083
/19:8439 /20:8711 /21:6379 /22:9414 /23:10892 /24:70282
/25:170 /26:217 /27:149 /28:26 /29:13 /30:51
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 666 672 Covad Communications
189 588 673 Genuity
3908 585 925 Supernet, Inc.
7018 493 1386 AT&T
701 444 1484 UUNET Technologies, Inc.
702 444 729 UUNET - Commercial IP service
6197 436 571 BellSouth Network Solutions,
6198 387 497 BellSouth Network Solutions,
7066 387 491 Virginia Polytechnic Institut
690 371 410 Merit Network
20115 328 480 Charter Communications
27364 311 317 Armstrong Cable Services
1239 309 893 Sprint
10753 298 312 XCOM Technologies, INC.
11305 281 358 Interland Incorporated
7843 262 546 Adelphia Corp.
25844 241 241 Skadden, Arps, Slate, Meagher
4355 210 392 EarthLink, Inc.
3320 207 268 Deutsche Telekom AG
3356 207 476 Level 3 Communications, LLC
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:699 13:1 15:4 16:1 17:4
20:6 24:836 25:1 32:85 38:45 40:23
44:2 55:1 57:14 61:301 62:391 63:1858
64:1773 65:2010 66:2701 67:259 68:391 69:257
80:413 81:128 82:13 128:141 129:171 130:62
131:82 132:13 134:171 135:7 136:179 137:114
138:113 139:47 140:146 141:134 142:99 143:45
144:89 145:13 146:275 147:62 148:302 149:76
150:123 151:68 152:218 153:57 154:4 155:126
156:68 157:49 158:119 159:135 160:45 161:75
162:360 163:75 164:312 165:145 166:96 167:311
168:178 169:95 170:321 171:9 192:5383 193:2475
194:1975 195:1186 196:467 198:3620 199:2741 200:2973
202:3890 203:5265 204:3019 205:2039 206:2335 207:2546
208:2559 209:2847 210:903 211:301 212:970 213:934
214:16 215:22 216:3270 217:708 218:102 219:75
220:102 221:10
End of report
