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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 07 Jul, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126555
Prefixes after maximum aggregation: 79149
Unique aggregates announced to Internet: 59863
Total ASes present in the Internet Routing Table: 15430
Origin-only ASes present in the Internet Routing Table: 13373
Origin ASes announcing only one prefix: 6064
Transit ASes present in the Internet Routing Table: 2057
Transit-only ASes present in the Internet Routing Table: 73
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: 1244388448
Equivalent to 74 /8s, 43 /16s and 220 /24s
Percentage of available address space announced: 33.6
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 56055
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21797
Total APNIC prefixes after maximum aggregation: 12626
Prefixes being announced from the APNIC address blocks: 20218
Unique aggregates announced from the APNIC address blocks: 12331
APNIC Region origin ASes present in the Internet Routing Table: 1839
APNIC Region origin ASes announcing only one prefix: 526
APNIC Region transit ASes present in the Internet Routing Table: 301
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 116855072
Equivalent to 6 /8s, 247 /16s and 17 /24s
Percentage of available APNIC address space announced: 63.0
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: 77162
Total ARIN prefixes after maximum aggregation: 48120
Prefixes being announced from the ARIN address blocks: 55057
Unique aggregates announced from the ARIN address blocks: 16564
ARIN Region origin ASes present in the Internet Routing Table: 8486
ARIN Region origin ASes announcing only one prefix: 2890
ARIN Region transit ASes present in the Internet Routing Table: 816
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 194001408
Equivalent to 11 /8s, 144 /16s and 58 /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: 22240
Total RIPE prefixes after maximum aggregation: 16108
Prefixes being announced from the RIPE address blocks: 18655
Unique aggregates announced from the RIPE address blocks: 12329
RIPE Region origin ASes present in the Internet Routing Table: 4694
RIPE Region origin ASes announcing only one prefix: 2558
RIPE Region transit ASes present in the Internet Routing Table: 840
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 132482240
Equivalent to 7 /8s, 229 /16s and 132 /24s
Percentage of available RIPE address space announced: 71.8
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: 5354
Total LACNIC prefixes after maximum aggregation: 2295
Prefixes being announced from the LACNIC address blocks: 4794
Unique aggregates announced from the LACNIC address blocks: 3086
LACNIC Region origin ASes present in the Internet Routing Table: 338
LACNIC Region origin ASes announcing only one prefix: 90
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: 25
Number of LACNIC addresses announced to Internet: 12811776
Equivalent to 0 /8s, 195 /16s and 126 /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 1054 1069 745 Telstra Pty Ltd
4755 404 133 59 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 350 SINET Japan
17557 335 24 155 Pakistan Telecom
703 334 370 267 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 243 777 210 DACOM Corporation
9583 234 37 22 Satyam Infoway Ltd.,
4134 228 1916 113 Data Communications Bureau
4766 222 2475 166 Korea Internet Exchange for "
9800 190 307 58 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
4538 168 1506 21 China Education and Research
9498 168 11 28 BHARTI BT INTERNET LTD.
9929 167 170 34 China Netcom Corp.
4739 141 58 130 Commerical Internet eXchange
9238 138 8 20 TATA ISP
4716 132 745 126 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1528 8816 1074 UUNET Technologies, Inc.
7018 1339 7164 924 AT&T
1239 952 2998 666 Sprint
3908 901 1517 471 Supernet, Inc.
7132 833 6605 227 Southwestern Bell Internet Se
189 690 372 299 Genuity
18566 620 160 8 Covad Communications
4323 610 526 177 Time Warner Communications, I
7843 609 360 237 Adelphia Corp.
1 582 2472 387 GENUITY
11305 549 170 72 Interland Incorporated
852 527 1124 417 Telus Advanced Communications
6197 523 366 219 BellSouth Network Solutions,
209 519 2127 305 Qwest
705 506 271 323 UUNET Technologies, Inc.
7066 488 204 261 Virginia Polytechnic Institut
6198 478 267 182 BellSouth Network Solutions,
20115 460 195 282 Charter Communications
690 449 64 295 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 1020 2170 627 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 246 801 141 France Telecom Transpac
8220 233 386 221 COLT Internet - International
680 232 2053 229 DFN-IP service G-WiN
1257 224 307 186 SWIPnet Swedish IP Network
5400 199 142 116 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 141 549 138 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 125 1315 115 BTnet UK Regional network
3246 122 373 118 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 110 796 32 Ibernet, Internet Access Netw
5511 96 177 74 France Telecom
6746 89 12 75 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 299 98 107 ImpSat
7303 237 37 59 Telecom Argentina Stet-France
8151 213 334 114 UniNet S.A. de C.V.
11172 171 66 40 Servicios Alestra S.A de C.V
16814 135 9 17 NSS, S.A.
11340 134 3 46 Red Universitaria Nacional
6503 133 205 95 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
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 76 9 18 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
11830 69 5 28 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7927 64 6 39 Global One Venezuela
7984 61 12 41 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 620 612 Covad Communications
7132 833 606 Southwestern Bell Internet Se
11305 549 477 Interland Incorporated
4323 610 433 Time Warner Communications, I
3908 901 430 Supernet, Inc.
7018 1339 415 AT&T
702 1020 393 UUNET - Commercial IP service
189 690 391 Genuity
7843 609 372 Adelphia Corp.
4755 404 345 Videsh Sanchar Nigam Ltd. Aut
1221 1054 309 Telstra Pty Ltd
6197 523 304 BellSouth Network Solutions,
6198 478 296 BellSouth Network Solutions,
4355 404 295 EarthLink, Inc.
27364 305 287 Armstrong Cable Services
1239 952 286 Sprint
6347 363 282 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
25844 258 256 Skadden, Arps, Slate, Meagher
376 357 235 Reseau Interordinateurs Scien
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 /9:6 /10:8 /11:13 /12:54
/13:97 /14:257 /15:473 /16:7420 /17:1722 /18:3042
/19:8534 /20:8567 /21:6258 /22:9170 /23:10705 /24:69578
/25:175 /26:272 /27:74 /28:39 /29:22 /30:23
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 715 1020 UUNET - Commercial IP service
18566 614 620 Covad Communications
189 610 690 Genuity
3908 576 901 Supernet, Inc.
11305 475 549 Interland Incorporated
7018 472 1339 AT&T
701 431 1528 UUNET Technologies, Inc.
690 406 449 Merit Network
6197 394 523 BellSouth Network Solutions,
7066 384 488 Virginia Polytechnic Institut
6198 373 478 BellSouth Network Solutions,
7843 372 609 Adelphia Corp.
1239 356 952 Sprint
20115 320 460 Charter Communications
27364 299 305 Armstrong Cable Services
25844 258 258 Skadden, Arps, Slate, Meagher
1 221 582 GENUITY
4355 216 404 EarthLink, Inc.
3320 209 268 Deutsche Telekom AG
705 208 506 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:701 13:1 15:4 16:1 17:3
20:7 24:856 25:1 32:95 38:42 40:21
44:2 57:17 61:263 62:355 63:1868 64:1766
65:1961 66:2549 67:194 68:385 69:173 80:391
81:122 82:3 128:145 129:166 130:52 131:80
132:26 134:173 135:4 136:114 137:105 138:114
139:67 140:168 141:117 142:94 143:44 144:101
145:13 146:276 147:95 148:289 149:61 150:83
151:70 152:233 153:101 154:3 155:119 156:57
157:46 158:129 159:140 160:45 161:75 162:376
163:78 164:319 165:141 166:95 167:321 168:175
169:105 170:315 171:8 192:5320 193:2582 194:1979
195:1092 196:471 198:3588 199:2692 200:2940 202:3862
203:5244 204:2976 205:2034 206:2322 207:2428 208:2604
209:2872 210:848 211:359 212:1009 213:864 214:19
215:23 216:3436 217:639 218:92 219:64 220:90
221:8
End of report
