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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 03 Jul, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126576
Prefixes after maximum aggregation: 79138
Unique aggregates announced to Internet: 59933
Total ASes present in the Internet Routing Table: 15435
Origin-only ASes present in the Internet Routing Table: 13369
Origin ASes announcing only one prefix: 6069
Transit ASes present in the Internet Routing Table: 2066
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1252870240
Equivalent to 74 /8s, 173 /16s and 72 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.4
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 56058
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21717
Total APNIC prefixes after maximum aggregation: 12628
Prefixes being announced from the APNIC address blocks: 20172
Unique aggregates announced from the APNIC address blocks: 12348
APNIC Region origin ASes present in the Internet Routing Table: 1842
APNIC Region origin ASes announcing only one prefix: 529
APNIC Region transit ASes present in the Internet Routing Table: 301
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 116730144
Equivalent to 6 /8s, 245 /16s and 41 /24s
Percentage of available APNIC address space announced: 62.9
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: 77207
Total ARIN prefixes after maximum aggregation: 48114
Prefixes being announced from the ARIN address blocks: 55102
Unique aggregates announced from the ARIN address blocks: 16542
ARIN Region origin ASes present in the Internet Routing Table: 8486
ARIN Region origin ASes announcing only one prefix: 2898
ARIN Region transit ASes present in the Internet Routing Table: 824
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 193991168
Equivalent to 11 /8s, 144 /16s and 18 /24s
Percentage of available ARIN address space announced: 72.3
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: 22279
Total RIPE prefixes after maximum aggregation: 16113
Prefixes being announced from the RIPE address blocks: 18675
Unique aggregates announced from the RIPE address blocks: 12371
RIPE Region origin ASes present in the Internet Routing Table: 4690
RIPE Region origin ASes announcing only one prefix: 2552
RIPE Region transit ASes present in the Internet Routing Table: 843
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132771776
Equivalent to 7 /8s, 233 /16s and 239 /24s
Percentage of available RIPE address space announced: 71.9
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: 5371
Total LACNIC prefixes after maximum aggregation: 2283
Prefixes being announced from the LACNIC address blocks: 4819
Unique aggregates announced from the LACNIC address blocks: 3050
LACNIC Region origin ASes present in the Internet Routing Table: 339
LACNIC Region origin ASes announcing only one prefix: 90
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 12816384
Equivalent to 0 /8s, 195 /16s and 144 /24s
Percentage of available LACNIC address space announced: 38.2
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 1053 1069 744 Telstra Pty Ltd
4755 404 133 61 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 350 SINET Japan
17557 343 24 152 Pakistan Telecom
703 336 370 268 UUNET
2764 306 325 273 connect.com.au pty ltd
7474 268 306 200 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
9583 231 37 20 Satyam Infoway Ltd.,
4134 227 1916 113 Data Communications Bureau
4766 221 2475 165 Korea Internet Exchange for "
9800 189 306 59 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 168 11 28 BHARTI BT INTERNET LTD.
9929 156 169 32 China Netcom Corp.
4739 139 58 128 Commerical Internet eXchange
9238 138 8 20 TATA ISP
4716 132 745 126 TTnet
4713 122 1182 100 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1530 8816 1076 UUNET Technologies, Inc.
7018 1339 7184 924 AT&T
1239 951 2998 665 Sprint
3908 902 1517 472 Supernet, Inc.
7132 838 6606 232 Southwestern Bell Internet Se
189 687 372 299 Genuity
7843 627 362 204 Adelphia Corp.
18566 611 160 8 Covad Communications
4323 608 526 176 Time Warner Communications, I
1 582 2472 387 GENUITY
11305 549 170 72 Interland Incorporated
852 527 1124 417 Telus Advanced Communications
6197 522 366 218 BellSouth Network Solutions,
209 515 2110 303 Qwest
705 510 271 327 UUNET Technologies, Inc.
7066 488 204 261 Virginia Polytechnic Institut
6198 477 267 181 BellSouth Network Solutions,
20115 459 194 281 Charter Communications
690 443 63 295 Merit Network
2386 408 541 230 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1022 2171 628 UUNET - Commercial IP service
3301 293 1169 281 TeliaNet Sweden
3320 268 2004 229 Deutsche Telekom AG
719 266 307 125 LANLINK autonomous system
3215 252 834 146 France Telecom Transpac
8220 233 386 221 COLT Internet - International
680 232 2053 229 DFN-IP service G-WiN
1257 223 307 185 SWIPnet Swedish IP Network
5400 203 140 121 BT Ignite European Backbone
5515 187 795 150 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 153 44 149 Romania Data Systems S.A.
3303 140 533 137 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 125 1315 115 BTnet UK Regional network
3246 123 389 119 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 110 796 32 Ibernet, Internet Access Netw
2647 98 4129 40 SITA
5511 96 177 74 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 298 98 106 ImpSat
7303 236 37 60 Telecom Argentina Stet-France
8151 213 334 114 UniNet S.A. de C.V.
11172 170 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
6503 134 205 96 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
11340 100 2 36 Red Universitaria Nacional
6147 98 70 20 Telefonica Del Peru
11992 87 8 37 Integrated Systems
13999 86 36 8 Mega Cable S.A. de C.V.
8065 80 9 16 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
1916 73 306 43 Fundacao de Amparo a Pesquisa
15311 72 12 36 Telefonica Empresas
4270 68 18 9 Red de Interconexion Universi
11830 68 5 28 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 6 39 Global One Venezuela
15034 62 5 34 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 838 606 Southwestern Bell Internet Se
18566 611 603 Covad Communications
11305 549 477 Interland Incorporated
4323 608 432 Time Warner Communications, I
3908 902 430 Supernet, Inc.
7843 627 423 Adelphia Corp.
7018 1339 415 AT&T
702 1022 394 UUNET - Commercial IP service
189 687 388 Genuity
4755 404 343 Videsh Sanchar Nigam Ltd. Aut
1221 1053 309 Telstra Pty Ltd
6197 522 304 BellSouth Network Solutions,
6198 477 296 BellSouth Network Solutions,
4355 400 291 EarthLink, Inc.
27364 305 287 Armstrong Cable Services
1239 951 286 Sprint
6347 363 282 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
376 383 254 Reseau Interordinateurs Scien
25844 257 249 Skadden, Arps, Slate, Meagher
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64732 PRIVATE 202.38.166.0/23 9808 Guangdong Mobile Com
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
172.208.0.0/14 1668 GNN Hosting Service
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
192.149.62.0/23 29839 RegistryPro, Inc.
192.153.136.0/21 568 DISO-UNRRA
192.158.254.0/24 705 UUNET Technologies, Inc.
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 /9:7 /10:8 /11:13 /12:53
/13:98 /14:256 /15:470 /16:7419 /17:1741 /18:3035
/19:8534 /20:8523 /21:6253 /22:9184 /23:10748 /24:69642
/25:137 /26:257 /27:67 /28:40 /29:23 /30:22
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 715 1022 UUNET - Commercial IP service
189 607 687 Genuity
18566 605 611 Covad Communications
3908 577 902 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 469 1339 AT&T
701 431 1530 UUNET Technologies, Inc.
690 401 443 Merit Network
6197 393 522 BellSouth Network Solutions,
7843 388 627 Adelphia Corp.
7066 384 488 Virginia Polytechnic Institut
6198 373 477 BellSouth Network Solutions,
1239 355 951 Sprint
20115 319 459 Charter Communications
27364 299 305 Armstrong Cable Services
25844 257 257 Skadden, Arps, Slate, Meagher
1 221 582 GENUITY
4355 215 400 EarthLink, Inc.
3320 209 268 Deutsche Telekom AG
705 208 510 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:703 13:1 15:4 16:1 17:3
20:7 24:862 25:1 32:95 38:43 40:21
44:2 57:17 61:259 62:355 63:1869 64:1766
65:1966 66:2547 67:192 68:383 69:169 80:393
81:126 82:3 128:141 129:166 130:52 131:79
132:26 134:175 135:4 136:114 137:106 138:112
139:65 140:140 141:120 142:94 143:44 144:107
145:13 146:280 147:95 148:288 149:62 150:81
151:69 152:232 153:101 154:3 155:119 156:57
157:46 158:129 159:140 160:45 161:75 162:378
163:82 164:319 165:142 166:95 167:320 168:174
169:104 170:322 171:8 192:5325 193:2593 194:1973
195:1091 196:471 198:3591 199:2699 200:2957 202:3866
203:5235 204:2980 205:2043 206:2338 207:2433 208:2603
209:2873 210:862 211:369 212:994 213:866 214:19
215:23 216:3422 217:650 218:91 219:57 220:96
221:8
End of report
