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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 12 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 127813
Prefixes after maximum aggregation: 80126
Unique aggregates announced to Internet: 61871
Total ASes present in the Internet Routing Table: 15814
Origin-only ASes present in the Internet Routing Table: 13710
Origin ASes announcing only one prefix: 6230
Transit ASes present in the Internet Routing Table: 2104
Transit-only ASes present in the Internet Routing Table: 73
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: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1242608672
Equivalent to 74 /8s, 16 /16s and 180 /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: 56727
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22417
Total APNIC prefixes after maximum aggregation: 12727
Prefixes being announced from the APNIC address blocks: 20826
Unique aggregates announced from the APNIC address blocks: 12492
APNIC Region origin ASes present in the Internet Routing Table: 1896
APNIC Region origin ASes announcing only one prefix: 542
APNIC Region transit ASes present in the Internet Routing Table: 308
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 121810688
Equivalent to 7 /8s, 66 /16s and 175 /24s
Percentage of available APNIC address space announced: 65.6
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: 77573
Total ARIN prefixes after maximum aggregation: 48672
Prefixes being announced from the ARIN address blocks: 55315
Unique aggregates announced from the ARIN address blocks: 17473
ARIN Region origin ASes present in the Internet Routing Table: 8660
ARIN Region origin ASes announcing only one prefix: 2976
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: 197039136
Equivalent to 11 /8s, 190 /16s and 148 /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: 22378
Total RIPE prefixes after maximum aggregation: 16436
Prefixes being announced from the RIPE address blocks: 18911
Unique aggregates announced from the RIPE address blocks: 12777
RIPE Region origin ASes present in the Internet Routing Table: 4838
RIPE Region origin ASes announcing only one prefix: 2615
RIPE Region transit ASes present in the Internet Routing Table: 855
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 135688256
Equivalent to 8 /8s, 22 /16s and 112 /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: 5443
Total LACNIC prefixes after maximum aggregation: 2291
Prefixes being announced from the LACNIC address blocks: 4873
Unique aggregates announced from the LACNIC address blocks: 3121
LACNIC Region origin ASes present in the Internet Routing Table: 347
LACNIC Region origin ASes announcing only one prefix: 97
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13202432
Equivalent to 0 /8s, 201 /16s and 116 /24s
Percentage of available LACNIC address space announced: 39.3
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 980 1124 693 Telstra Pty Ltd
4755 406 135 73 Videsh Sanchar Nigam Ltd. Aut
2907 375 1896 350 SINET Japan
703 336 371 265 UUNET
4134 329 2225 106 Data Communications Bureau
17557 304 22 136 Pakistan Telecom
2764 288 322 257 connect.com.au pty ltd
7474 267 290 208 Optus Communications Pty Ltd
17676 257 3958 21 XTAGE CORPORATION
9583 253 38 23 Satyam Infoway Ltd.,
3786 237 773 203 DACOM Corporation
4766 227 2461 170 Korea Internet Exchange for "
9800 202 331 51 CHINA UNICOM
9443 185 58 82 Primus Telecommunications
9498 182 16 31 BHARTI BT INTERNET LTD.
4538 173 1586 20 China Education and Research
9929 173 159 36 China Netcom Corp.
9942 161 69 102 COMindico Australia
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 1480 8770 1035 UUNET Technologies, Inc.
7018 1395 7111 976 AT&T
3908 923 1572 491 Supernet, Inc.
1239 908 3039 652 Sprint
18566 677 160 8 Covad Communications
189 650 450 341 Genuity
4323 634 552 181 Time Warner Communications, I
6197 613 396 269 BellSouth Network Solutions,
7843 536 439 145 Adelphia Corp.
852 516 1123 410 Telus Advanced Communications
209 509 2129 294 Qwest
7066 493 205 263 Virginia Polytechnic Institut
3356 490 10674 408 Level 3 Communications, LLC
6198 490 325 188 BellSouth Network Solutions,
20115 483 203 293 Charter Communications
1 458 1054 294 GENUITY
705 418 185 255 UUNET Technologies, Inc.
690 411 59 276 Merit Network
4355 394 340 111 EarthLink, Inc.
10753 390 80 195 XCOM Technologies, INC.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 715 2121 593 UUNET - Commercial IP service
3301 296 1168 283 TeliaNet Sweden
3320 271 1989 231 Deutsche Telekom AG
8220 245 431 234 COLT Internet - International
1257 240 374 187 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
3215 200 735 113 France Telecom Transpac
719 193 307 123 LANLINK autonomous system
5515 185 779 148 Sonera Solution Autonomous Sy
5400 184 175 134 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 155 110 152 Romania Data Systems S.A.
3303 145 540 140 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 125 376 123 Song Networks
3269 117 821 64 TELECOM ITALIA
2856 113 1295 104 BTnet UK Regional network
3352 98 824 34 Ibernet, Internet Access Netw
25186 98 127 71 France Telecom Transpac's Tra
2647 89 4129 45 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 336 103 106 ImpSat
7303 240 40 58 Telecom Argentina Stet-France
8151 231 350 120 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
6147 89 70 19 Telefonica Del Peru
11992 88 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 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 68 6 41 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
13999 62 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 677 669 Covad Communications
4323 634 453 Time Warner Communications, I
3908 923 432 Supernet, Inc.
7018 1395 419 AT&T
7843 536 391 Adelphia Corp.
6197 613 344 BellSouth Network Solutions,
4755 406 333 Videsh Sanchar Nigam Ltd. Aut
189 650 309 Genuity
6198 490 302 BellSouth Network Solutions,
27364 318 295 Armstrong Cable Services
1221 980 287 Telstra Pty Ltd
4355 394 283 EarthLink, Inc.
22909 295 276 Comcast Cable Corporation
6347 351 271 SAVVIS Communications Corpora
1239 908 256 Sprint
376 358 243 Reseau Interordinateurs Scien
25844 242 240 Skadden, Arps, Slate, Meagher
17676 257 236 XTAGE CORPORATION
22773 257 232 Cox Communications, Inc. Atla
7066 493 230 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
65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom
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 /14:267 /15:472 /16:7434 /17:1745 /18:3109
/19:8414 /20:8747 /21:6392 /22:9424 /23:10912 /24:70082
/25:166 /26:204 /27:144 /28:27 /29:9 /30:49
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 671 677 Covad Communications
3908 585 923 Supernet, Inc.
189 565 650 Genuity
7018 503 1395 AT&T
6197 478 613 BellSouth Network Solutions,
701 442 1480 UUNET Technologies, Inc.
702 431 715 UUNET - Commercial IP service
7066 389 493 Virginia Polytechnic Institut
6198 378 490 BellSouth Network Solutions,
10753 376 390 XCOM Technologies, INC.
690 371 411 Merit Network
20115 328 483 Charter Communications
1239 316 908 Sprint
27364 312 318 Armstrong Cable Services
25844 242 242 Skadden, Arps, Slate, Meagher
7843 233 536 Adelphia Corp.
3356 229 490 Level 3 Communications, LLC
4355 212 394 EarthLink, Inc.
3320 210 271 Deutsche Telekom AG
209 204 509 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:711 13:1 15:4 16:1 17:3
20:6 24:838 25:1 32:84 38:45 40:23
44:2 55:1 57:14 61:310 62:398 63:1870
64:1783 65:1978 66:2643 67:274 68:371 69:247
80:414 81:126 82:16 128:146 129:169 130:62
131:84 132:15 134:171 135:7 136:188 137:115
138:126 139:47 140:154 141:134 142:101 143:44
144:88 145:13 146:275 147:63 148:300 149:78
150:121 151:69 152:218 153:57 154:5 155:126
156:58 157:52 158:135 159:134 160:46 161:76
162:360 163:77 164:318 165:145 166:97 167:313
168:179 169:95 170:328 171:9 192:5402 193:2473
194:1971 195:1135 196:463 198:3617 199:2758 200:2991
202:3920 203:5265 204:2995 205:2046 206:2323 207:2492
208:2565 209:2721 210:908 211:358 212:960 213:919
214:16 215:22 216:3228 217:715 218:105 219:33
220:106 221:11
End of report
