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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 08 Aug, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127680
Prefixes after maximum aggregation: 79791
Unique aggregates announced to Internet: 60274
Total ASes present in the Internet Routing Table: 15642
Origin-only ASes present in the Internet Routing Table: 13559
Origin ASes announcing only one prefix: 6154
Transit ASes present in the Internet Routing Table: 2083
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 20
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1238130304
Equivalent to 73 /8s, 204 /16s and 94 /24s
Percentage of available address space announced: 33.4
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56563
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22194
Total APNIC prefixes after maximum aggregation: 12664
Prefixes being announced from the APNIC address blocks: 20607
Unique aggregates announced from the APNIC address blocks: 12323
APNIC Region origin ASes present in the Internet Routing Table: 1871
APNIC Region origin ASes announcing only one prefix: 531
APNIC Region transit ASes present in the Internet Routing Table: 309
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 118885504
Equivalent to 7 /8s, 22 /16s and 12 /24s
Percentage of available APNIC address space announced: 64.1
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: 77806
Total ARIN prefixes after maximum aggregation: 48552
Prefixes being announced from the ARIN address blocks: 55522
Unique aggregates announced from the ARIN address blocks: 16522
ARIN Region origin ASes present in the Internet Routing Table: 8587
ARIN Region origin ASes announcing only one prefix: 2930
ARIN Region transit ASes present in the Internet Routing Table: 826
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 196460800
Equivalent to 11 /8s, 181 /16s and 193 /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: 22323
Total RIPE prefixes after maximum aggregation: 16315
Prefixes being announced from the RIPE address blocks: 18923
Unique aggregates announced from the RIPE address blocks: 12651
RIPE Region origin ASes present in the Internet Routing Table: 4768
RIPE Region origin ASes announcing only one prefix: 2597
RIPE Region transit ASes present in the Internet Routing Table: 847
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 134461760
Equivalent to 8 /8s, 3 /16s and 185 /24s
Percentage of available RIPE address space announced: 72.9
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: 5356
Total LACNIC prefixes after maximum aggregation: 2260
Prefixes being announced from the LACNIC address blocks: 4834
Unique aggregates announced from the LACNIC address blocks: 3125
LACNIC Region origin ASes present in the Internet Routing Table: 345
LACNIC Region origin ASes announcing only one prefix: 96
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 12905216
Equivalent to 0 /8s, 196 /16s and 235 /24s
Percentage of available LACNIC address space announced: 38.5
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 1043 1038 735 Telstra Pty Ltd
4755 442 136 71 Videsh Sanchar Nigam Ltd. Aut
2907 375 1896 350 SINET Japan
703 336 370 268 UUNET
4134 330 2136 114 Data Communications Bureau
2764 298 323 269 connect.com.au pty ltd
17557 297 25 132 Pakistan Telecom
7474 259 306 205 Optus Communications Pty Ltd
17676 251 3878 20 XTAGE CORPORATION
3786 239 777 205 DACOM Corporation
9583 239 37 20 Satyam Infoway Ltd.,
4766 238 2461 170 Korea Internet Exchange for "
9800 195 314 56 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
4538 170 1538 21 China Education and Research
9929 166 153 33 China Netcom Corp.
9498 159 11 25 BHARTI BT INTERNET LTD.
9238 140 9 21 TATA ISP
4739 139 58 128 Commerical Internet eXchange
4716 132 745 126 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1487 8778 1047 UUNET Technologies, Inc.
7018 1371 7167 957 AT&T
1239 935 2998 656 Sprint
3908 906 1534 484 Supernet, Inc.
7132 855 6604 236 Southwestern Bell Internet Se
189 670 371 324 Genuity
18566 652 160 8 Covad Communications
4323 614 549 172 Time Warner Communications, I
7843 573 400 215 Adelphia Corp.
6197 561 440 200 BellSouth Network Solutions,
852 523 1124 415 Telus Advanced Communications
209 522 2193 302 Qwest
1 513 1196 335 GENUITY
6198 499 271 188 BellSouth Network Solutions,
7066 488 205 259 Virginia Polytechnic Institut
705 482 192 303 UUNET Technologies, Inc.
20115 473 196 284 Charter Communications
3356 441 10651 362 Level 3 Communications, LLC
690 411 60 277 Merit Network
4355 405 339 111 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 732 2139 611 UUNET - Commercial IP service
719 312 307 125 LANLINK autonomous system
3301 290 1170 278 TeliaNet Sweden
3320 258 1987 220 Deutsche Telekom AG
8220 247 432 235 COLT Internet - International
680 233 2054 230 DFN-IP service G-WiN
1257 231 309 187 SWIPnet Swedish IP Network
3215 212 736 120 France Telecom Transpac
5515 185 779 149 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 167 156 118 BT Ignite European Backbone
8708 154 108 151 Romania Data Systems S.A.
3303 142 540 139 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 125 1315 116 BTnet UK Regional network
3246 122 376 120 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 111 812 33 Ibernet, Internet Access Netw
2647 100 4129 44 SITA
5511 96 178 75 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 290 98 106 ImpSat
7303 237 39 55 Telecom Argentina Stet-France
8151 219 334 117 UniNet S.A. de C.V.
11172 177 69 42 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 133 205 94 AVANTEL, S.A.
10620 125 8 31 TVCABLE BOGOTA
11340 107 3 38 Red Universitaria Nacional
11992 86 8 31 Integrated Systems
6147 84 70 21 Telefonica Del Peru
8065 80 8 17 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 74 14 38 Telefonica Empresas
1916 73 306 43 Fundacao de Amparo a Pesquisa
11830 71 5 31 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7927 65 6 39 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
13999 63 36 8 Mega Cable S.A. de C.V.
7984 59 12 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 652 644 Covad Communications
7132 855 619 Southwestern Bell Internet Se
4323 614 442 Time Warner Communications, I
3908 906 422 Supernet, Inc.
7018 1371 414 AT&T
4755 442 371 Videsh Sanchar Nigam Ltd. Aut
6197 561 361 BellSouth Network Solutions,
7843 573 358 Adelphia Corp.
189 670 346 Genuity
11305 358 320 Interland Incorporated
6198 499 311 BellSouth Network Solutions,
1221 1043 308 Telstra Pty Ltd
27364 317 298 Armstrong Cable Services
4355 405 294 EarthLink, Inc.
6347 364 283 SAVVIS Communications Corpora
1239 935 279 Sprint
22909 284 271 Comcast Cable Corporation
25844 258 256 Skadden, Arps, Slate, Meagher
376 359 244 Reseau Interordinateurs Scien
17676 251 231 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 1880 Stupi, house man's p
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
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:5 /10:8 /11:13 /12:54
/13:99 /14:263 /15:475 /16:7412 /17:1743 /18:3079
/19:8681 /20:8728 /21:6346 /22:9321 /23:10807 /24:69891
/25:170 /26:283 /27:173 /28:27 /29:11 /30:47
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 646 652 Covad Communications
189 592 670 Genuity
3908 578 906 Supernet, Inc.
7018 483 1371 AT&T
702 446 732 UUNET - Commercial IP service
701 431 1487 UUNET Technologies, Inc.
6197 427 561 BellSouth Network Solutions,
6198 390 499 BellSouth Network Solutions,
7066 385 488 Virginia Polytechnic Institut
690 371 411 Merit Network
1239 338 935 Sprint
20115 322 473 Charter Communications
27364 311 317 Armstrong Cable Services
7843 306 573 Adelphia Corp.
11305 281 358 Interland Incorporated
25844 258 258 Skadden, Arps, Slate, Meagher
4355 219 405 EarthLink, Inc.
1 210 513 GENUITY
209 209 522 Qwest
705 205 482 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:712 13:1 15:4 16:1 17:3
20:6 24:860 25:1 32:98 38:44 40:23
44:2 57:14 61:287 62:383 63:1879 64:1732
65:2011 66:2651 67:212 68:389 69:242 80:395
81:120 82:9 128:134 129:167 130:58 131:81
132:13 134:175 135:7 136:122 137:118 138:120
139:46 140:140 141:116 142:94 143:45 144:100
145:13 146:279 147:59 148:300 149:64 150:106
151:63 152:214 153:57 154:3 155:119 156:54
157:46 158:118 159:136 160:47 161:74 162:407
163:81 164:324 165:145 166:96 167:320 168:181
169:93 170:320 171:8 192:5406 193:2468 194:1978
195:1154 196:471 198:3591 199:2739 200:2995 202:3937
203:5225 204:2963 205:2043 206:2319 207:2440 208:2563
209:2890 210:882 211:303 212:1016 213:910 214:16
215:22 216:3247 217:690 218:102 219:70 220:97
221:10
End of report
