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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 05 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127829
Prefixes after maximum aggregation: 80064
Unique aggregates announced to Internet: 61568
Total ASes present in the Internet Routing Table: 15763
Origin-only ASes present in the Internet Routing Table: 13665
Origin ASes announcing only one prefix: 6208
Transit ASes present in the Internet Routing Table: 2098
Transit-only ASes present in the Internet Routing Table: 72
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: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1241576992
Equivalent to 74 /8s, 0 /16s and 246 /24s
Percentage of available address space announced: 33.5
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56821
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22373
Total APNIC prefixes after maximum aggregation: 12706
Prefixes being announced from the APNIC address blocks: 20791
Unique aggregates announced from the APNIC address blocks: 12344
APNIC Region origin ASes present in the Internet Routing Table: 1892
APNIC Region origin ASes announcing only one prefix: 540
APNIC Region transit ASes present in the Internet Routing Table: 313
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 121234432
Equivalent to 7 /8s, 57 /16s and 228 /24s
Percentage of available APNIC address space announced: 65.3
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: 77693
Total ARIN prefixes after maximum aggregation: 48640
Prefixes being announced from the ARIN address blocks: 55427
Unique aggregates announced from the ARIN address blocks: 17303
ARIN Region origin ASes present in the Internet Routing Table: 8626
ARIN Region origin ASes announcing only one prefix: 2956
ARIN Region transit ASes present in the Internet Routing Table: 835
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 196530464
Equivalent to 11 /8s, 182 /16s and 209 /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: 22380
Total RIPE prefixes after maximum aggregation: 16434
Prefixes being announced from the RIPE address blocks: 18909
Unique aggregates announced from the RIPE address blocks: 12780
RIPE Region origin ASes present in the Internet Routing Table: 4827
RIPE Region origin ASes announcing only one prefix: 2617
RIPE Region transit ASes present in the Internet Routing Table: 852
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 135730240
Equivalent to 8 /8s, 23 /16s and 20 /24s
Percentage of available RIPE address space announced: 73.5
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: 5380
Total LACNIC prefixes after maximum aggregation: 2284
Prefixes being announced from the LACNIC address blocks: 4839
Unique aggregates announced from the LACNIC address blocks: 3142
LACNIC Region origin ASes present in the Internet Routing Table: 346
LACNIC Region origin ASes announcing only one prefix: 95
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 13130752
Equivalent to 0 /8s, 200 /16s and 92 /24s
Percentage of available LACNIC address space announced: 39.1
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 983 1125 696 Telstra Pty Ltd
4755 408 135 73 Videsh Sanchar Nigam Ltd. Aut
2907 377 1912 351 SINET Japan
703 339 372 268 UUNET
4134 332 2220 111 Data Communications Bureau
17557 305 26 132 Pakistan Telecom
2764 289 322 258 connect.com.au pty ltd
7474 264 291 205 Optus Communications Pty Ltd
17676 255 3926 19 XTAGE CORPORATION
9583 244 37 20 Satyam Infoway Ltd.,
3786 237 773 203 DACOM Corporation
4766 229 2461 171 Korea Internet Exchange for "
9800 201 331 57 CHINA UNICOM
9443 186 58 82 Primus Telecommunications
9498 182 16 31 BHARTI BT INTERNET LTD.
9929 172 157 35 China Netcom Corp.
4538 170 1538 21 China Education and Research
9942 156 69 100 COMindico Australia
17642 156 41 117 RequestDSL BGP AS# for Sydney
9238 140 9 21 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1483 8770 1042 UUNET Technologies, Inc.
7018 1387 7139 973 AT&T
3908 924 1573 494 Supernet, Inc.
1239 902 3033 649 Sprint
189 674 451 334 Genuity
18566 673 160 8 Covad Communications
4323 632 552 182 Time Warner Communications, I
6197 570 387 247 BellSouth Network Solutions,
7843 554 425 167 Adelphia Corp.
852 516 1123 410 Telus Advanced Communications
209 509 2129 294 Qwest
6198 496 277 197 BellSouth Network Solutions,
7066 492 205 263 Virginia Polytechnic Institut
20115 481 201 291 Charter Communications
3356 476 10675 395 Level 3 Communications, LLC
1 464 1054 297 GENUITY
705 463 182 289 UUNET Technologies, Inc.
690 411 59 276 Merit Network
10753 389 80 194 XCOM Technologies, INC.
4355 388 340 111 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 725 2122 601 UUNET - Commercial IP service
3301 296 1168 282 TeliaNet Sweden
3320 268 1989 228 Deutsche Telekom AG
1257 246 374 187 SWIPnet Swedish IP Network
8220 246 431 235 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
3215 211 736 118 France Telecom Transpac
719 192 307 122 LANLINK autonomous system
5515 185 779 148 Sonera Solution Autonomous Sy
5400 181 175 132 BT Ignite European Backbone
786 178 1858 178 The JANET IP Service
8708 158 111 154 Romania Data Systems S.A.
3303 143 540 140 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 124 376 122 Song Networks
3269 116 819 63 TELECOM ITALIA
2856 112 1295 103 BTnet UK Regional network
3352 104 824 34 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 333 103 106 ImpSat
7303 240 39 57 Telecom Argentina Stet-France
8151 228 350 117 UniNet S.A. de C.V.
11172 189 95 45 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 133 205 94 AVANTEL, S.A.
10620 127 8 28 TVCABLE BOGOTA
11340 104 3 36 Red Universitaria Nacional
11992 88 8 37 Integrated Systems
6147 80 70 17 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 73 21 27 Instituto Costarricense de El
1916 72 305 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 57 36 8 Mega Cable S.A. de C.V.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 673 665 Covad Communications
4323 632 450 Time Warner Communications, I
3908 924 430 Supernet, Inc.
7018 1387 414 AT&T
7843 554 387 Adelphia Corp.
189 674 340 Genuity
4755 408 335 Videsh Sanchar Nigam Ltd. Aut
6197 570 323 BellSouth Network Solutions,
6198 496 299 BellSouth Network Solutions,
27364 317 294 Armstrong Cable Services
1221 983 287 Telstra Pty Ltd
4355 388 277 EarthLink, Inc.
6347 355 275 SAVVIS Communications Corpora
22909 291 273 Comcast Cable Corporation
1239 902 253 Sprint
25844 241 239 Skadden, Arps, Slate, Meagher
376 353 238 Reseau Interordinateurs Scien
17676 255 236 XTAGE CORPORATION
22773 251 231 Cox Communications, Inc. Atla
7066 492 229 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
65021 PRIVATE 128.216.1.0/24 619 Department of Navy
65021 PRIVATE 128.216.4.0/24 619 Department of Navy
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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
189.186.184.0/24 4471 Michigan Internet Cooperative
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 /8:20 /9:4 /10:6 /11:12 /12:55
/13:98 /14:263 /15:475 /16:7423 /17:1739 /18:3093
/19:8425 /20:8731 /21:6394 /22:9434 /23:10940 /24:70093
/25:166 /26:209 /27:142 /28:16 /29:13 /30:51
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 667 673 Covad Communications
189 589 674 Genuity
3908 584 924 Supernet, Inc.
7018 494 1387 AT&T
701 444 1483 UUNET Technologies, Inc.
702 441 725 UUNET - Commercial IP service
6197 435 570 BellSouth Network Solutions,
7066 388 492 Virginia Polytechnic Institut
6198 386 496 BellSouth Network Solutions,
10753 375 389 XCOM Technologies, INC.
690 371 411 Merit Network
20115 328 481 Charter Communications
1239 311 902 Sprint
27364 311 317 Armstrong Cable Services
7843 265 554 Adelphia Corp.
25844 241 241 Skadden, Arps, Slate, Meagher
4355 208 388 EarthLink, Inc.
3320 207 268 Deutsche Telekom AG
3356 207 476 Level 3 Communications, LLC
209 204 509 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:708 13:1 15:4 16:1 17:4
20:6 24:843 25:1 32:84 38:44 40:23
44:2 55:1 57:14 61:309 62:398 63:1858
64:1769 65:2007 66:2703 67:271 68:387 69:259
80:414 81:116 82:14 128:148 129:171 130:62
131:84 132:14 134:172 135:7 136:188 137:114
138:123 139:47 140:154 141:134 142:98 143:43
144:89 145:13 146:273 147:63 148:302 149:78
150:121 151:69 152:218 153:57 154:4 155:126
156:59 157:48 158:130 159:135 160:44 161:75
162:360 163:76 164:315 165:145 166:96 167:313
168:178 169:95 170:324 171:9 189:1 192:5388
193:2473 194:1976 195:1117 196:464 198:3612 199:2754
200:2975 202:3916 203:5248 204:3002 205:2038 206:2332
207:2494 208:2561 209:2723 210:901 211:357 212:965
213:915 214:16 215:22 216:3263 217:710 218:105
219:36 220:103 221:9
End of report
