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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 22 Aug, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127576
Prefixes after maximum aggregation: 79989
Unique aggregates announced to Internet: 61251
Total ASes present in the Internet Routing Table: 15720
Origin-only ASes present in the Internet Routing Table: 13621
Origin ASes announcing only one prefix: 6214
Transit ASes present in the Internet Routing Table: 2099
Transit-only ASes present in the Internet Routing Table: 70
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: 1239615616
Equivalent to 73 /8s, 227 /16s and 8 /24s
Percentage of available address space announced: 33.4
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56773
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22181
Total APNIC prefixes after maximum aggregation: 12680
Prefixes being announced from the APNIC address blocks: 20612
Unique aggregates announced from the APNIC address blocks: 12376
APNIC Region origin ASes present in the Internet Routing Table: 1886
APNIC Region origin ASes announcing only one prefix: 545
APNIC Region transit ASes present in the Internet Routing Table: 317
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 120809344
Equivalent to 7 /8s, 51 /16s and 103 /24s
Percentage of available APNIC address space announced: 65.1
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: 77776
Total ARIN prefixes after maximum aggregation: 48637
Prefixes being announced from the ARIN address blocks: 55448
Unique aggregates announced from the ARIN address blocks: 17239
ARIN Region origin ASes present in the Internet Routing Table: 8615
ARIN Region origin ASes announcing only one prefix: 2960
ARIN Region transit ASes present in the Internet Routing Table: 831
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 195906816
Equivalent to 11 /8s, 173 /16s and 77 /24s
Percentage of available ARIN address space announced: 73.0
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: 22301
Total RIPE prefixes after maximum aggregation: 16378
Prefixes being announced from the RIPE address blocks: 18911
Unique aggregates announced from the RIPE address blocks: 12707
RIPE Region origin ASes present in the Internet Routing Table: 4803
RIPE Region origin ASes announcing only one prefix: 2612
RIPE Region transit ASes present in the Internet Routing Table: 850
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 134809920
Equivalent to 8 /8s, 9 /16s and 9 /24s
Percentage of available RIPE address space announced: 73.0
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: 5316
Total LACNIC prefixes after maximum aggregation: 2294
Prefixes being announced from the LACNIC address blocks: 4785
Unique aggregates announced from the LACNIC address blocks: 3127
LACNIC Region origin ASes present in the Internet Routing Table: 346
LACNIC Region origin ASes announcing only one prefix: 97
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13030656
Equivalent to 0 /8s, 198 /16s and 213 /24s
Percentage of available LACNIC address space announced: 38.8
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 1038 1037 728 Telstra Pty Ltd
4755 403 135 72 Videsh Sanchar Nigam Ltd. Aut
2907 375 1912 350 SINET Japan
703 341 372 273 UUNET
4134 331 2210 114 Data Communications Bureau
2764 302 323 270 connect.com.au pty ltd
17557 300 26 136 Pakistan Telecom
7474 264 307 204 Optus Communications Pty Ltd
17676 253 3894 22 XTAGE CORPORATION
9583 242 37 21 Satyam Infoway Ltd.,
3786 239 777 205 DACOM Corporation
4766 238 2461 170 Korea Internet Exchange for "
9800 198 326 56 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
4538 170 1538 21 China Education and Research
9498 170 14 26 BHARTI BT INTERNET LTD.
9929 169 153 33 China Netcom Corp.
17642 158 41 119 RequestDSL BGP AS# for Sydney
9942 141 69 101 COMindico Australia
9238 140 9 21 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1488 8754 1047 UUNET Technologies, Inc.
7018 1396 7200 978 AT&T
3908 920 1589 495 Supernet, Inc.
1239 893 3016 635 Sprint
189 672 451 331 Genuity
18566 665 160 8 Covad Communications
4323 623 551 179 Time Warner Communications, I
6197 569 387 244 BellSouth Network Solutions,
7843 560 409 204 Adelphia Corp.
852 523 1124 415 Telus Advanced Communications
209 519 2145 299 Qwest
6198 514 277 198 BellSouth Network Solutions,
7066 489 205 262 Virginia Polytechnic Institut
705 483 192 303 UUNET Technologies, Inc.
3356 481 10661 397 Level 3 Communications, LLC
1 476 1078 307 GENUITY
20115 474 196 285 Charter Communications
7132 410 6608 240 Southwestern Bell Internet Se
690 408 59 275 Merit Network
4355 404 339 109 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 733 2141 610 UUNET - Commercial IP service
3301 289 1168 277 TeliaNet Sweden
3320 264 1987 224 Deutsche Telekom AG
8220 243 431 232 COLT Internet - International
1257 241 312 190 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
3215 214 752 121 France Telecom Transpac
719 195 307 124 LANLINK autonomous system
5515 185 779 148 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 175 175 127 BT Ignite European Backbone
8708 155 110 152 Romania Data Systems S.A.
3303 140 540 137 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 121 360 119 Song Networks
3269 117 821 64 TELECOM ITALIA
2856 112 1295 103 BTnet UK Regional network
3352 111 812 33 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 313 98 113 ImpSat
7303 232 38 61 Telecom Argentina Stet-France
8151 220 334 116 UniNet S.A. de C.V.
11172 178 77 43 Servicios Alestra S.A de C.V
16814 152 10 18 NSS, S.A.
6503 132 205 93 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 107 3 38 Red Universitaria Nacional
11992 87 8 37 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 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 57 36 8 Mega Cable S.A. de C.V.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 665 657 Covad Communications
4323 623 444 Time Warner Communications, I
3908 920 425 Supernet, Inc.
7018 1396 418 AT&T
7843 560 356 Adelphia Corp.
189 672 341 Genuity
4755 403 331 Videsh Sanchar Nigam Ltd. Aut
6197 569 325 BellSouth Network Solutions,
11305 358 320 Interland Incorporated
6198 514 316 BellSouth Network Solutions,
1221 1038 310 Telstra Pty Ltd
4355 404 295 EarthLink, Inc.
27364 316 293 Armstrong Cable Services
6347 359 280 SAVVIS Communications Corpora
22909 286 269 Comcast Cable Corporation
1239 893 258 Sprint
25844 257 255 Skadden, Arps, Slate, Meagher
376 358 243 Reseau Interordinateurs Scien
17676 253 231 XTAGE CORPORATION
7066 489 227 Virginia Polytechnic Institut
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
31818 UNALLOCATED 208.50.77.0/24 13818 Phoenix Internationa
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 /15:474 /16:7413 /17:1744 /18:3073
/19:8401 /20:8672 /21:6374 /22:9416 /23:10878 /24:70025
/25:164 /26:222 /27:151 /28:26 /29:12 /30:48
/31:0 /32:26
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 659 665 Covad Communications
189 587 672 Genuity
3908 580 920 Supernet, Inc.
7018 498 1396 AT&T
702 445 733 UUNET - Commercial IP service
701 442 1488 UUNET Technologies, Inc.
6197 434 569 BellSouth Network Solutions,
6198 405 514 BellSouth Network Solutions,
7066 385 489 Virginia Polytechnic Institut
690 368 408 Merit Network
20115 323 474 Charter Communications
27364 311 316 Armstrong Cable Services
1239 301 893 Sprint
10753 293 299 XCOM Technologies, INC.
7843 285 560 Adelphia Corp.
11305 281 358 Interland Incorporated
25844 257 257 Skadden, Arps, Slate, Meagher
4355 217 404 EarthLink, Inc.
3356 210 481 Level 3 Communications, LLC
209 209 519 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:702 13:1 15:4 16:1 17:3
20:6 24:859 25:1 32:85 38:44 40:23
44:2 55:1 57:14 61:284 62:394 63:1853
64:1757 65:2008 66:2677 67:242 68:391 69:250
80:402 81:122 82:10 128:159 129:171 130:63
131:82 132:13 134:166 135:7 136:148 137:118
138:121 139:45 140:141 141:118 142:100 143:45
144:90 145:13 146:274 147:61 148:301 149:73
150:120 151:67 152:218 153:57 154:4 155:122
156:59 157:47 158:118 159:136 160:45 161:75
162:408 163:78 164:329 165:139 166:96 167:313
168:182 169:95 170:325 171:8 192:5388 193:2474
194:1975 195:1167 196:452 198:3609 199:2755 200:2939
202:3942 203:5182 204:2981 205:2050 206:2338 207:2503
208:2551 209:2857 210:895 211:300 212:988 213:913
214:16 215:22 216:3268 217:689 218:98 219:73
220:102 221:10
End of report
