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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 18 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128187
Prefixes after maximum aggregation: 80278
Unique aggregates announced to Internet: 62091
Total ASes present in the Internet Routing Table: 15849
Origin-only ASes present in the Internet Routing Table: 13744
Origin ASes announcing only one prefix: 6249
Transit ASes present in the Internet Routing Table: 2105
Transit-only ASes present in the Internet Routing Table: 75
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: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1243557408
Equivalent to 74 /8s, 31 /16s and 46 /24s
Percentage of available address space announced: 33.6
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57013
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22496
Total APNIC prefixes after maximum aggregation: 12753
Prefixes being announced from the APNIC address blocks: 20889
Unique aggregates announced from the APNIC address blocks: 12523
APNIC Region origin ASes present in the Internet Routing Table: 1899
APNIC Region origin ASes announcing only one prefix: 545
APNIC Region transit ASes present in the Internet Routing Table: 309
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 121973504
Equivalent to 7 /8s, 69 /16s and 43 /24s
Percentage of available APNIC address space announced: 65.7
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: 77648
Total ARIN prefixes after maximum aggregation: 48734
Prefixes being announced from the ARIN address blocks: 55406
Unique aggregates announced from the ARIN address blocks: 17551
ARIN Region origin ASes present in the Internet Routing Table: 8677
ARIN Region origin ASes announcing only one prefix: 2986
ARIN Region transit ASes present in the Internet Routing Table: 840
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 197148192
Equivalent to 11 /8s, 192 /16s and 62 /24s
Percentage of available ARIN address space announced: 73.4
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: 22592
Total RIPE prefixes after maximum aggregation: 16506
Prefixes being announced from the RIPE address blocks: 19125
Unique aggregates announced from the RIPE address blocks: 12856
RIPE Region origin ASes present in the Internet Routing Table: 4855
RIPE Region origin ASes announcing only one prefix: 2623
RIPE Region transit ASes present in the Internet Routing Table: 857
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136329792
Equivalent to 8 /8s, 32 /16s and 58 /24s
Percentage of available RIPE address space announced: 73.9
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: 5448
Total LACNIC prefixes after maximum aggregation: 2285
Prefixes being announced from the LACNIC address blocks: 4878
Unique aggregates announced from the LACNIC address blocks: 3142
LACNIC Region origin ASes present in the Internet Routing Table: 343
LACNIC Region origin ASes announcing only one prefix: 95
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: 13284096
Equivalent to 0 /8s, 202 /16s and 179 /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 974 1109 691 Telstra Pty Ltd
4755 408 134 74 Videsh Sanchar Nigam Ltd. Aut
2907 375 1896 350 SINET Japan
703 337 371 266 UUNET
4134 329 2228 108 Data Communications Bureau
17557 292 21 136 Pakistan Telecom
2764 288 322 257 connect.com.au pty ltd
7474 269 306 210 Optus Communications Pty Ltd
17676 261 3962 25 XTAGE CORPORATION
9583 252 38 23 Satyam Infoway Ltd.,
4766 238 2461 173 Korea Internet Exchange for "
3786 237 773 203 DACOM Corporation
9800 203 332 52 CHINA UNICOM
9443 185 58 82 Primus Telecommunications
9498 183 16 29 BHARTI BT INTERNET LTD.
9929 176 160 36 China Netcom Corp.
9942 176 69 106 COMindico Australia
4538 172 1554 21 China Education and Research
17642 155 40 116 RequestDSL BGP AS# for Sydney
4837 140 1058 88 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1468 8736 1023 UUNET Technologies, Inc.
7018 1401 7140 977 AT&T
3908 921 1574 492 Supernet, Inc.
1239 908 3037 654 Sprint
18566 687 176 8 Covad Communications
4323 638 554 187 Time Warner Communications, I
189 619 432 354 Genuity
6197 612 396 268 BellSouth Network Solutions,
3356 528 10677 445 Level 3 Communications, LLC
7843 519 443 136 Adelphia Corp.
852 516 1123 410 Telus Advanced Communications
209 503 2127 287 Qwest
6198 494 329 191 BellSouth Network Solutions,
7066 472 205 262 Virginia Polytechnic Institut
20115 469 201 293 Charter Communications
1 445 1051 281 GENUITY
10753 422 87 207 XCOM Technologies, INC.
705 416 185 253 UUNET Technologies, Inc.
690 411 59 276 Merit Network
4355 393 336 110 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 709 2121 588 UUNET - Commercial IP service
3301 294 1168 281 TeliaNet Sweden
3320 270 1989 230 Deutsche Telekom AG
8220 265 436 253 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 228 374 183 SWIPnet Swedish IP Network
3215 195 738 109 France Telecom Transpac
719 193 307 123 LANLINK autonomous system
5515 186 779 148 Sonera Solution Autonomous Sy
5400 182 174 133 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 155 110 152 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 112 1293 103 BTnet UK Regional network
25186 105 128 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 343 103 105 ImpSat
8151 232 350 121 UniNet S.A. de C.V.
7303 227 40 58 Telecom Argentina Stet-France
11172 188 79 44 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 132 205 93 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 104 3 36 Red Universitaria Nacional
6147 89 70 19 Telefonica Del Peru
11992 89 8 36 Integrated Systems
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
1916 71 305 42 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 58 36 8 Mega Cable S.A. de C.V.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 687 679 Covad Communications
4323 638 451 Time Warner Communications, I
3908 921 429 Supernet, Inc.
7018 1401 424 AT&T
7843 519 383 Adelphia Corp.
6197 612 344 BellSouth Network Solutions,
4755 408 334 Videsh Sanchar Nigam Ltd. Aut
6198 494 303 BellSouth Network Solutions,
27364 319 296 Armstrong Cable Services
1221 974 283 Telstra Pty Ltd
4355 393 283 EarthLink, Inc.
22909 297 277 Comcast Cable Corporation
6347 354 273 SAVVIS Communications Corpora
189 619 265 Genuity
1239 908 254 Sprint
376 362 247 Reseau Interordinateurs Scien
22773 267 241 Cox Communications, Inc. Atla
25844 242 240 Skadden, Arps, Slate, Meagher
6140 343 238 ImpSat
17676 261 236 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
64525 PRIVATE 198.62.142.0/24 2150 California State Uni
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 /8:19 /9:4 /10:6 /11:12 /12:55
/13:98 /14:265 /15:474 /16:7441 /17:1753 /18:3118
/19:8436 /20:8775 /21:6434 /22:9451 /23:10979 /24:70239
/25:163 /26:208 /27:150 /28:27 /29:9 /30:49
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 681 687 Covad Communications
3908 582 921 Supernet, Inc.
189 535 619 Genuity
7018 502 1401 AT&T
6197 477 612 BellSouth Network Solutions,
701 438 1468 UUNET Technologies, Inc.
702 426 709 UUNET - Commercial IP service
10753 390 422 XCOM Technologies, INC.
6198 380 494 BellSouth Network Solutions,
690 371 411 Merit Network
7066 368 472 Virginia Polytechnic Institut
20115 316 469 Charter Communications
1239 315 908 Sprint
27364 313 319 Armstrong Cable Services
3356 259 528 Level 3 Communications, LLC
25844 242 242 Skadden, Arps, Slate, Meagher
7843 215 519 Adelphia Corp.
4355 212 393 EarthLink, Inc.
3320 209 270 Deutsche Telekom AG
209 201 503 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:717 13:1 15:4 16:1 17:3
20:6 24:830 25:1 32:84 38:47 40:23
44:2 55:1 57:14 61:310 62:500 63:1866
64:1773 65:1968 66:2642 67:289 68:359 69:249
80:420 81:128 82:16 128:157 129:168 130:62
131:84 132:17 134:169 135:7 136:188 137:115
138:126 139:47 140:164 141:138 142:100 143:44
144:84 145:13 146:275 147:63 148:300 149:79
150:121 151:69 152:218 153:58 154:5 155:127
156:58 157:53 158:135 159:139 160:45 161:69
162:361 163:76 164:298 165:156 166:97 167:304
168:179 169:96 170:326 171:9 192:5392 193:2475
194:1986 195:1143 196:458 198:3617 199:2767 200:2992
202:3922 203:5289 204:2991 205:2042 206:2323 207:2487
208:2574 209:2723 210:906 211:363 212:950 213:925
214:16 215:22 216:3247 217:707 218:105 219:36
220:115 221:11
End of report
