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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 04 Apr, 2003
Analysis Summary
----------------
BGP routing table entries examined: 123560
Prefixes after maximum aggregation: 78344
Unique aggregates announced to Internet: 59340
Total ASes present in the Internet Routing Table: 14925
Origin-only ASes present in the Internet Routing Table: 12937
Origin ASes announcing only one prefix: 5852
Transit ASes present in the Internet Routing Table: 1988
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 21
Number of addresses announced to Internet: 1222597600
Equivalent to 72 /8s, 223 /16s and 91 /24s
Percentage of available address space announced: 33.0
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 58294
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20680
Total APNIC prefixes after maximum aggregation: 12246
Prefixes being announced from the APNIC address blocks: 19141
Unique aggregates announced from the APNIC address blocks: 11890
APNIC Region origin ASes present in the Internet Routing Table: 1761
APNIC Region origin ASes announcing only one prefix: 522
APNIC Region transit ASes present in the Internet Routing Table: 288
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 109180672
Equivalent to 6 /8s, 129 /16s and 247 /24s
Percentage of available APNIC address space announced: 64.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76278
Total ARIN prefixes after maximum aggregation: 48182
Prefixes being announced from the ARIN address blocks: 54517
Unique aggregates announced from the ARIN address blocks: 16689
ARIN Region origin ASes present in the Internet Routing Table: 8283
ARIN Region origin ASes announcing only one prefix: 2798
ARIN Region transit ASes present in the Internet Routing Table: 794
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190053824
Equivalent to 11 /8s, 83 /16s and 253 /24s
Percentage of available ARIN address space announced: 70.8
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: 21343
Total RIPE prefixes after maximum aggregation: 15702
Prefixes being announced from the RIPE address blocks: 17849
Unique aggregates announced from the RIPE address blocks: 11923
RIPE Region origin ASes present in the Internet Routing Table: 4479
RIPE Region origin ASes announcing only one prefix: 2448
RIPE Region transit ASes present in the Internet Routing Table: 808
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 128508928
Equivalent to 7 /8s, 168 /16s and 228 /24s
Percentage of available RIPE address space announced: 76.6
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: 5255
Total LACNIC prefixes after maximum aggregation: 2214
Prefixes being announced from the LACNIC address blocks: 4650
Unique aggregates announced from the LACNIC address blocks: 2952
LACNIC Region origin ASes present in the Internet Routing Table: 330
LACNIC Region origin ASes announcing only one prefix: 84
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12401920
Equivalent to 0 /8s, 189 /16s and 61 /24s
Percentage of available LACNIC address space announced: 73.9
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 1100 1105 804 Telstra Pty Ltd
703 397 367 313 UUNET
2907 381 1976 360 SINET Japan
17557 375 28 141 Pakistan Telecom
2764 318 340 286 connect.com.au pty ltd
4134 316 2826 105 Data Communications Bureau
7474 271 276 207 Optus Communications Pty Ltd
4814 268 79 15 China Telecom (Group)
3786 247 776 214 DACOM Corporation
17676 237 3654 25 XTAGE CORPORATION
4755 228 135 74 Videsh Sanchar Nigam Ltd. Aut
9583 219 33 14 Satyam Infoway Ltd.,
4766 211 2074 158 Korea Internet Exchange for "
9443 179 58 78 Primus Telecommunications
9800 176 226 48 CHINA UNICOM
9238 135 8 17 TATA ISP
4716 129 732 123 TTnet
4739 128 57 117 Commerical Internet eXchange
7539 128 151 123 TANet2, sponsored by NSC, TAI
9498 127 9 10 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1554 8888 1120 UUNET Technologies, Inc.
7018 1353 7157 938 AT&T
3908 985 1572 478 Supernet, Inc.
1239 976 3140 690 Sprint
1 777 2846 494 GENUITY
7132 726 6083 407 Southwestern Bell Internet Se
189 706 341 291 Genuity
7843 621 399 169 Adelphia Corp.
4151 607 691 58 USDA
3561 588 2353 339 Cable & Wireless USA
4323 566 491 178 Time Warner Communications, I
852 550 1107 433 Telus Advanced Communications
18566 534 124 7 Covad Communications
209 529 2074 337 Qwest
2386 506 482 250 AT&T Data Communications Serv
690 502 73 318 Merit Network
7066 485 204 255 Virginia Polytechnic Institut
6197 476 338 196 BellSouth Network Solutions,
705 459 188 203 UUNET Technologies, Inc.
6198 457 226 178 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 782 2221 649 UUNET - Commercial IP service
3215 316 851 175 France Telecom Transpac
3301 310 1174 300 TeliaNet Sweden
3320 267 1996 230 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
1257 216 328 190 SWIPnet Swedish IP Network
719 195 307 125 LANLINK autonomous system
5515 195 779 168 Sonera Solution Autonomous Sy
5400 194 93 108 BT Ignite European Backbone
786 180 1874 180 The JANET IP Service
8708 154 42 150 Romania Data Systems S.A.
20858 154 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 137 215 128 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 119 1298 109 BTnet UK Regional network
3269 113 755 63 TELECOM ITALIA
3246 110 384 107 Song Networks
3233 107 11 12 RNC - Romanian Natioanal R&D
3352 106 734 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 294 98 108 ImpSat
7303 240 36 64 Telecom Argentina Stet-France
8151 213 333 115 UniNet S.A. de C.V.
11172 164 66 33 Servicios Alestra S.A de C.V
6503 156 207 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
11992 90 9 36 Integrated Systems
6147 77 62 20 Telefonica Del Peru
6535 73 5 21 Chilesat Servicios Empresari
8065 73 6 18 Empresas Publicas de Medellin
1916 71 286 42 Fundacao de Amparo a Pesquisa
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
11830 65 4 26 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
13999 62 36 8 Mega Cable S.A. de C.V.
7984 61 11 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 607 549 USDA
18566 534 527 Covad Communications
3908 985 507 Supernet, Inc.
7843 621 452 Adelphia Corp.
7018 1353 415 AT&T
189 706 415 Genuity
4323 566 388 Time Warner Communications, I
7132 726 319 Southwestern Bell Internet Se
1221 1100 296 Telstra Pty Ltd
1239 976 286 Sprint
6347 367 285 SAVVIS Communications Corpora
1 777 283 GENUITY
6197 476 280 BellSouth Network Solutions,
6198 457 279 BellSouth Network Solutions,
4355 379 277 EarthLink, Inc.
2386 506 256 AT&T Data Communications Serv
705 459 256 UUNET Technologies, Inc.
4814 268 253 China Telecom (Group)
3561 588 249 Cable & Wireless USA
27364 265 248 Armstrong Cable Services
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
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65000 PRIVATE 202.172.216.0/24 9226 AS for Singapore Int
65000 PRIVATE 202.172.217.0/24 9226 AS for Singapore Int
Advertised Unallocated 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
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
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
192.158.251.0/24 27321 INTERNET SOFTWARE CONSORTIUM,
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 /9:5 /10:8 /11:13 /12:47
/13:92 /14:248 /15:461 /16:7374 /17:1646 /18:2950
/19:8265 /20:8181 /21:5900 /22:8829 /23:10616 /24:68330
/25:176 /26:191 /27:52 /28:33 /29:19 /30:60
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 627 706 Genuity
3908 621 985 Supernet, Inc.
18566 529 534 Covad Communications
702 485 782 UUNET - Commercial IP service
7018 466 1353 AT&T
690 451 502 Merit Network
701 440 1554 UUNET Technologies, Inc.
7066 384 485 Virginia Polytechnic Institut
1239 375 976 Sprint
7843 374 621 Adelphia Corp.
6198 361 457 BellSouth Network Solutions,
6197 355 476 BellSouth Network Solutions,
11305 315 338 Interland Incorporated
2386 305 506 AT&T Data Communications Serv
20115 298 425 Charter Communications
22927 285 285 TELEFONICA DE ARGENTINA
6140 281 294 ImpSat
1 277 777 GENUITY
27364 258 265 Armstrong Cable Services
3215 239 316 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:671 13:1 15:4 17:2 20:10
24:759 25:1 32:86 38:65 40:18 44:2
55:1 57:17 61:460 62:515 63:1887 64:1515
65:1908 66:2337 67:176 68:323 69:74 80:334
81:123 128:150 129:176 130:45 131:83 132:11
133:11 134:146 135:4 136:113 137:111 138:105
139:67 140:149 141:87 142:96 143:48 144:101
145:17 146:268 147:90 148:277 149:73 150:43
151:66 152:248 153:53 154:2 155:109 156:46
157:44 158:124 159:140 160:34 161:62 162:129
163:81 164:307 165:136 166:74 167:323 168:399
169:56 170:315 171:6 192:5351 193:2400 194:1992
195:996 196:478 198:3560 199:3287 200:2893 202:3681
203:5039 204:3062 205:2015 206:2383 207:2397 208:2671
209:2885 210:737 211:336 212:984 213:774 214:20
215:21 216:3285 217:614 218:83 219:11 220:59
End of report
