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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 24 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128030
Prefixes after maximum aggregation: 80290
Unique aggregates announced to Internet: 61848
Total ASes present in the Internet Routing Table: 15860
Origin-only ASes present in the Internet Routing Table: 13763
Origin ASes announcing only one prefix: 6252
Transit ASes present in the Internet Routing Table: 2097
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1226897188
Equivalent to 73 /8s, 32 /16s and 247 /24s
Percentage of available address space announced: 33.1
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56852
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22548
Total APNIC prefixes after maximum aggregation: 12735
Prefixes being announced from the APNIC address blocks: 20935
Unique aggregates announced from the APNIC address blocks: 12354
APNIC Region origin ASes present in the Internet Routing Table: 1898
APNIC Region origin ASes announcing only one prefix: 543
APNIC Region transit ASes present in the Internet Routing Table: 307
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 122230272
Equivalent to 7 /8s, 73 /16s and 22 /24s
Percentage of available APNIC address space announced: 65.9
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: 77489
Total ARIN prefixes after maximum aggregation: 48734
Prefixes being announced from the ARIN address blocks: 55334
Unique aggregates announced from the ARIN address blocks: 17560
ARIN Region origin ASes present in the Internet Routing Table: 8688
ARIN Region origin ASes announcing only one prefix: 2993
ARIN Region transit ASes present in the Internet Routing Table: 833
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197434912
Equivalent to 11 /8s, 196 /16s and 158 /24s
Percentage of available ARIN address space announced: 73.6
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: 22562
Total RIPE prefixes after maximum aggregation: 16526
Prefixes being announced from the RIPE address blocks: 19078
Unique aggregates announced from the RIPE address blocks: 12841
RIPE Region origin ASes present in the Internet Routing Table: 4860
RIPE Region origin ASes announcing only one prefix: 2617
RIPE Region transit ASes present in the Internet Routing Table: 855
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136495424
Equivalent to 8 /8s, 34 /16s and 193 /24s
Percentage of available RIPE address space announced: 74.0
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: 5429
Total LACNIC prefixes after maximum aggregation: 2295
Prefixes being announced from the LACNIC address blocks: 4880
Unique aggregates announced from the LACNIC address blocks: 3174
LACNIC Region origin ASes present in the Internet Routing Table: 345
LACNIC Region origin ASes announcing only one prefix: 99
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13297664
Equivalent to 0 /8s, 202 /16s and 232 /24s
Percentage of available LACNIC address space announced: 39.6
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 975 1109 692 Telstra Pty Ltd
4755 408 134 72 Videsh Sanchar Nigam Ltd. Aut
2907 376 1896 350 SINET Japan
4134 340 2228 108 Data Communications Bureau
703 335 356 264 UUNET
2764 297 322 260 connect.com.au pty ltd
17557 291 21 136 Pakistan Telecom
7474 271 306 210 Optus Communications Pty Ltd
17676 264 3980 26 XTAGE CORPORATION
9583 257 38 26 Satyam Infoway Ltd.,
3786 235 773 203 DACOM Corporation
4766 226 2460 164 Korea Internet Exchange for "
9800 203 332 52 CHINA UNICOM
9498 185 20 16 BHARTI BT INTERNET LTD.
9443 182 58 82 Primus Telecommunications
9929 180 160 36 China Netcom Corp.
9942 175 69 107 COMindico Australia
4538 174 1586 21 China Education and Research
17642 155 40 116 RequestDSL BGP AS# for Sydney
9238 141 9 22 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1463 8719 1019 UUNET Technologies, Inc.
7018 1397 7123 974 AT&T
3908 917 1573 490 Supernet, Inc.
1239 907 3031 652 Sprint
18566 688 176 8 Covad Communications
4323 664 571 189 Time Warner Communications, I
6197 614 397 270 BellSouth Network Solutions,
189 603 431 353 Genuity
3356 555 10711 465 Level 3 Communications, LLC
7843 527 458 133 Adelphia Corp.
852 517 1123 410 Telus Advanced Communications
209 503 2127 286 Qwest
6198 498 330 193 BellSouth Network Solutions,
7066 481 205 262 Virginia Polytechnic Institut
20115 471 203 294 Charter Communications
1 432 1019 268 GENUITY
10753 421 86 206 XCOM Technologies, INC.
690 411 59 276 Merit Network
705 409 185 250 UUNET Technologies, Inc.
4355 396 336 110 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 713 2121 592 UUNET - Commercial IP service
3301 296 1169 283 TeliaNet Sweden
3320 271 1989 231 Deutsche Telekom AG
8220 256 434 245 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 228 358 183 SWIPnet Swedish IP Network
719 193 307 123 LANLINK autonomous system
5515 186 779 148 Sonera Solution Autonomous Sy
3215 184 721 105 France Telecom Transpac
5400 184 175 135 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 154 110 151 Romania Data Systems S.A.
3303 142 540 137 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 125 376 123 Song Networks
3269 119 853 65 TELECOM ITALIA
2856 113 1293 104 BTnet UK Regional network
25186 105 144 72 France Telecom Transpac's Tra
3352 98 824 34 Ibernet, Internet Access Netw
2647 95 4225 48 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 340 103 105 ImpSat
7303 229 40 62 Telecom Argentina Stet-France
8151 227 350 116 UniNet S.A. de C.V.
11172 188 79 44 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 131 205 94 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 103 3 36 Red Universitaria Nacional
11992 89 8 38 Integrated Systems
6147 84 70 19 Telefonica Del Peru
8065 82 8 17 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 75 14 38 Telefonica Empresas
11830 72 21 27 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7927 67 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
1916 61 270 41 Fundacao de Amparo a Pesquisa
7984 59 12 40 Global One Colombia
4926 57 4 48 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 688 680 Covad Communications
4323 664 475 Time Warner Communications, I
3908 917 427 Supernet, Inc.
7018 1397 423 AT&T
7843 527 394 Adelphia Corp.
6197 614 344 BellSouth Network Solutions,
4755 408 336 Videsh Sanchar Nigam Ltd. Aut
6198 498 305 BellSouth Network Solutions,
27364 320 297 Armstrong Cable Services
4355 396 286 EarthLink, Inc.
1221 975 283 Telstra Pty Ltd
22909 296 276 Comcast Cable Corporation
6347 355 274 SAVVIS Communications Corpora
1239 907 255 Sprint
189 603 250 Genuity
376 362 247 Reseau Interordinateurs Scien
22773 269 245 Cox Communications, Inc. Atla
25844 242 240 Skadden, Arps, Slate, Meagher
17676 264 238 XTAGE CORPORATION
6140 340 235 ImpSat
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
23780 UNALLOCATED 211.15.112.0/20 2516 Kokusai Denshin Denw
23780 UNALLOCATED 211.19.224.0/19 2516 Kokusai Denshin Denw
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 /8:18 /9:4 /10:6 /11:12 /12:55
/13:97 /14:265 /15:471 /16:7438 /17:1759 /18:3133
/19:8472 /20:8812 /21:6450 /22:9446 /23:10878 /24:70095
/25:156 /26:203 /27:151 /28:26 /29:9 /30:52
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 682 688 Covad Communications
3908 578 917 Supernet, Inc.
189 519 603 Genuity
7018 501 1397 AT&T
6197 478 614 BellSouth Network Solutions,
701 438 1463 UUNET Technologies, Inc.
702 428 713 UUNET - Commercial IP service
10753 389 421 XCOM Technologies, INC.
6198 384 498 BellSouth Network Solutions,
7066 377 481 Virginia Polytechnic Institut
690 371 411 Merit Network
1239 316 907 Sprint
20115 316 471 Charter Communications
27364 314 320 Armstrong Cable Services
3356 276 555 Level 3 Communications, LLC
25844 242 242 Skadden, Arps, Slate, Meagher
7843 215 527 Adelphia Corp.
4355 213 396 EarthLink, Inc.
3320 210 271 Deutsche Telekom AG
209 201 503 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:712 13:1 15:4 16:1 17:3
20:6 24:833 25:1 32:84 38:46 40:23
44:2 55:1 57:14 61:311 62:412 63:1870
64:1775 65:1962 66:2680 67:287 68:359 69:245
80:420 81:140 82:16 128:147 129:167 130:60
131:84 132:15 133:1 134:168 135:8 136:187
137:115 138:126 139:50 140:162 141:137 142:101
143:44 144:87 145:14 146:274 147:63 148:301
149:79 150:121 151:68 152:218 153:58 154:5
155:128 156:58 157:54 158:135 159:140 160:45
161:69 162:357 163:76 164:306 165:154 166:97
167:306 168:178 169:95 170:324 171:9 192:5326
193:2456 194:1977 195:1153 196:468 198:3596 199:2724
200:2993 202:3974 203:5279 204:2995 205:2037 206:2329
207:2496 208:2571 209:2704 210:911 211:363 212:957
213:932 214:16 215:22 216:3261 217:721 218:105
219:35 220:81 221:11 222:1
End of report
