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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 11 Jul, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126965
Prefixes after maximum aggregation: 79308
Unique aggregates announced to Internet: 60044
Total ASes present in the Internet Routing Table: 15487
Origin-only ASes present in the Internet Routing Table: 13420
Origin ASes announcing only one prefix: 6090
Transit ASes present in the Internet Routing Table: 2067
Transit-only ASes present in the Internet Routing Table: 71
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: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1237752672
Equivalent to 73 /8s, 198 /16s and 155 /24s
Percentage of available address space announced: 33.4
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56200
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21914
Total APNIC prefixes after maximum aggregation: 12614
Prefixes being announced from the APNIC address blocks: 20375
Unique aggregates announced from the APNIC address blocks: 12361
APNIC Region origin ASes present in the Internet Routing Table: 1852
APNIC Region origin ASes announcing only one prefix: 532
APNIC Region transit ASes present in the Internet Routing Table: 303
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 117082144
Equivalent to 6 /8s, 250 /16s and 136 /24s
Percentage of available APNIC address space announced: 63.1
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: 77310
Total ARIN prefixes after maximum aggregation: 48231
Prefixes being announced from the ARIN address blocks: 55162
Unique aggregates announced from the ARIN address blocks: 16651
ARIN Region origin ASes present in the Internet Routing Table: 8508
ARIN Region origin ASes announcing only one prefix: 2899
ARIN Region transit ASes present in the Internet Routing Table: 825
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 194509312
Equivalent to 11 /8s, 151 /16s and 250 /24s
Percentage of available ARIN address space announced: 72.5
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: 22360
Total RIPE prefixes after maximum aggregation: 16172
Prefixes being announced from the RIPE address blocks: 18758
Unique aggregates announced from the RIPE address blocks: 12400
RIPE Region origin ASes present in the Internet Routing Table: 4718
RIPE Region origin ASes announcing only one prefix: 2568
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: 133194688
Equivalent to 7 /8s, 240 /16s and 99 /24s
Percentage of available RIPE address space announced: 72.2
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: 5378
Total LACNIC prefixes after maximum aggregation: 2291
Prefixes being announced from the LACNIC address blocks: 4819
Unique aggregates announced from the LACNIC address blocks: 3073
LACNIC Region origin ASes present in the Internet Routing Table: 339
LACNIC Region origin ASes announcing only one prefix: 91
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 12820224
Equivalent to 0 /8s, 195 /16s and 159 /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 1049 1069 740 Telstra Pty Ltd
4755 408 132 59 Videsh Sanchar Nigam Ltd. Aut
2907 374 1896 350 SINET Japan
17557 347 24 152 Pakistan Telecom
703 332 370 265 UUNET
2764 307 325 274 connect.com.au pty ltd
7474 269 306 201 Optus Communications Pty Ltd
17676 250 3862 19 XTAGE CORPORATION
3786 243 777 210 DACOM Corporation
9583 235 37 22 Satyam Infoway Ltd.,
4134 227 1912 112 Data Communications Bureau
4766 223 2476 166 Korea Internet Exchange for "
9800 189 306 58 CHINA UNICOM
9443 182 58 82 Primus Telecommunications
9498 175 11 23 BHARTI BT INTERNET LTD.
4538 168 1506 21 China Education and Research
9929 167 170 34 China Netcom Corp.
4739 141 58 130 Commerical Internet eXchange
9238 137 8 23 TATA ISP
4716 132 745 126 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1529 8814 1075 UUNET Technologies, Inc.
7018 1345 7181 927 AT&T
1239 954 2997 668 Sprint
3908 902 1517 472 Supernet, Inc.
7132 838 6605 231 Southwestern Bell Internet Se
189 685 372 307 Genuity
18566 626 160 8 Covad Communications
4323 609 526 177 Time Warner Communications, I
7843 588 366 234 Adelphia Corp.
1 571 2456 387 GENUITY
11305 549 170 72 Interland Incorporated
852 527 1124 417 Telus Advanced Communications
6197 527 367 221 BellSouth Network Solutions,
209 513 2126 300 Qwest
7066 490 204 259 Virginia Polytechnic Institut
705 489 193 310 UUNET Technologies, Inc.
6198 479 267 183 BellSouth Network Solutions,
20115 460 195 282 Charter Communications
690 448 64 294 Merit Network
2386 407 541 232 AT&T Data Communications Serv
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1019 2154 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 240 801 136 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
8220 231 386 219 COLT Internet - International
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 154 44 150 Romania Data Systems S.A.
3303 142 549 139 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
2856 125 1315 116 BTnet UK Regional network
3246 122 373 118 Song Networks
3269 117 821 64 TELECOM ITALIA
3352 107 796 32 Ibernet, Internet Access Netw
2647 97 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 59 Telecom Argentina Stet-France
8151 216 350 116 UniNet S.A. de C.V.
11172 172 67 41 Servicios Alestra S.A de C.V
11340 140 4 48 Red Universitaria Nacional
16814 135 9 17 NSS, S.A.
6503 133 189 96 AVANTEL, S.A.
10620 115 7 32 TVCABLE BOGOTA
6147 99 70 21 Telefonica Del Peru
11992 88 8 38 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
15311 74 14 38 Telefonica Empresas
1916 73 306 43 Fundacao de Amparo a Pesquisa
11830 70 5 29 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 60 12 40 Global One Colombia
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 626 618 Covad Communications
7132 838 607 Southwestern Bell Internet Se
11305 549 477 Interland Incorporated
4323 609 432 Time Warner Communications, I
3908 902 430 Supernet, Inc.
7018 1345 418 AT&T
702 1019 392 UUNET - Commercial IP service
189 685 378 Genuity
7843 588 354 Adelphia Corp.
4755 408 349 Videsh Sanchar Nigam Ltd. Aut
1221 1049 309 Telstra Pty Ltd
6197 527 306 BellSouth Network Solutions,
6198 479 296 BellSouth Network Solutions,
4355 406 295 EarthLink, Inc.
27364 305 287 Armstrong Cable Services
1239 954 286 Sprint
6347 363 281 SAVVIS Communications Corpora
22909 277 265 Comcast Cable Corporation
25844 258 256 Skadden, Arps, Slate, Meagher
376 374 250 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65030 PRIVATE 61.95.250.0/24 9498 BHARTI BT INTERNET L
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
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 /9:5 /10:8 /11:13 /12:54
/13:97 /14:259 /15:474 /16:7426 /17:1723 /18:3051
/19:8605 /20:8589 /21:6285 /22:9185 /23:10745 /24:69799
/25:174 /26:273 /27:70 /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 1019 UUNET - Commercial IP service
18566 620 626 Covad Communications
189 605 685 Genuity
3908 577 902 Supernet, Inc.
7018 475 1345 AT&T
11305 475 549 Interland Incorporated
701 434 1529 UUNET Technologies, Inc.
690 406 448 Merit Network
6197 398 527 BellSouth Network Solutions,
7066 386 490 Virginia Polytechnic Institut
6198 374 479 BellSouth Network Solutions,
1239 358 954 Sprint
7843 342 588 Adelphia Corp.
20115 320 460 Charter Communications
27364 299 305 Armstrong Cable Services
25844 258 258 Skadden, Arps, Slate, Meagher
4355 216 406 EarthLink, Inc.
1 214 571 GENUITY
3320 209 268 Deutsche Telekom AG
705 206 489 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:703 13:1 15:4 16:1 17:3
20:6 24:855 25:1 32:98 38:42 40:21
44:2 57:15 61:260 62:358 63:1875 64:1774
65:1969 66:2561 67:197 68:373 69:196 80:391
81:117 82:6 128:143 129:161 130:52 131:81
132:25 134:175 135:4 136:120 137:107 138:114
139:65 140:141 141:117 142:94 143:44 144:99
145:13 146:280 147:95 148:289 149:62 150:84
151:70 152:233 153:101 154:3 155:119 156:57
157:45 158:122 159:140 160:45 161:75 162:375
163:79 164:321 165:142 166:95 167:322 168:173
169:109 170:321 171:8 192:5336 193:2608 194:1981
195:1098 196:470 198:3585 199:2704 200:2961 202:3915
203:5255 204:2984 205:2052 206:2326 207:2430 208:2573
209:2852 210:871 211:357 212:1004 213:877 214:19
215:23 216:3444 217:659 218:94 219:65 220:97
221:8
End of report
