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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 08 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130904
Prefixes after maximum aggregation: 80668
Unique aggregates announced to Internet: 62786
Total ASes present in the Internet Routing Table: 16278
Origin-only ASes present in the Internet Routing Table: 14147
Origin ASes announcing only one prefix: 6470
Transit ASes present in the Internet Routing Table: 2131
Transit-only ASes present in the Internet Routing Table: 69
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1269480420
Equivalent to 75 /8s, 170 /16s and 187 /24s
Percentage of available address space announced: 34.3
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57784
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23894
Total APNIC prefixes after maximum aggregation: 12991
Prefixes being announced from the APNIC address blocks: 22312
Unique aggregates announced from the APNIC address blocks: 12669
APNIC Region origin ASes present in the Internet Routing Table: 1954
APNIC Region origin ASes announcing only one prefix: 574
APNIC Region transit ASes present in the Internet Routing Table: 312
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 131762176
Equivalent to 7 /8s, 218 /16s and 136 /24s
Percentage of available APNIC address space announced: 71.0
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: 77186
Total ARIN prefixes after maximum aggregation: 47866
Prefixes being announced from the ARIN address blocks: 59821
Unique aggregates announced from the ARIN address blocks: 20719
ARIN Region origin ASes present in the Internet Routing Table: 8779
ARIN Region origin ASes announcing only one prefix: 3063
ARIN Region transit ASes present in the Internet Routing Table: 827
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 211587744
Equivalent to 12 /8s, 156 /16s and 146 /24s
Percentage of available ARIN address space announced: 74.2
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, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23099
Total RIPE prefixes after maximum aggregation: 16896
Prefixes being announced from the RIPE address blocks: 19979
Unique aggregates announced from the RIPE address blocks: 13322
RIPE Region origin ASes present in the Internet Routing Table: 5017
RIPE Region origin ASes announcing only one prefix: 2697
RIPE Region transit ASes present in the Internet Routing Table: 879
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 145752960
Equivalent to 8 /8s, 176 /16s and 3 /24s
Percentage of available RIPE address space announced: 66.8
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
30720 - 31743
RIPE Address Blocks 62/8, 80/6, 84/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5596
Total LACNIC prefixes after maximum aggregation: 2201
Prefixes being announced from the LACNIC address blocks: 5093
Unique aggregates announced from the LACNIC address blocks: 3093
LACNIC Region origin ASes present in the Internet Routing Table: 365
LACNIC Region origin ASes announcing only one prefix: 108
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13568000
Equivalent to 0 /8s, 207 /16s and 8 /24s
Percentage of available LACNIC address space announced: 40.4
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1127
Total AfriNIC prefixes after maximum aggregation: 714
Prefixes being announced from the AfriNIC address blocks: 727
Unique aggregates announced from the AfriNIC address blocks: 557
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1757440
Equivalent to 0 /8s, 26 /16s and 209 /24s
Percentage of available AfriNIC address space announced: 10.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 955 1119 675 Telstra Pty Ltd
4134 509 2389 110 Data Communications Bureau
2907 363 1863 340 SINET Japan
4755 342 130 60 Videsh Sanchar Nigam Ltd. Aut
9443 340 71 81 Primus Telecommunications
703 335 356 260 UUNET
17557 302 21 155 Pakistan Telecom
17676 287 4220 37 XTAGE CORPORATION
2764 275 288 236 connect.com.au pty ltd
4766 268 2896 192 Korea Internet Exchange for "
7474 262 306 212 Optus Communications Pty Ltd
4538 248 1778 22 China Education and Research
3786 235 771 204 DACOM Corporation
9583 228 44 11 Satyam Infoway Ltd.,
9929 216 152 27 China Netcom Corp.
9942 213 69 125 COMindico Australia
9800 208 345 58 CHINA UNICOM
9498 172 22 31 BHARTI BT INTERNET LTD.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4739 143 60 132 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1426 8665 983 UUNET Technologies, Inc.
7018 1417 7042 987 AT&T
1239 946 3076 660 Sprint
209 860 3446 532 Qwest
6197 768 436 215 BellSouth Network Solutions,
18566 732 176 8 Covad Communications
3356 707 10908 565 Level 3 Communications, LLC
4323 678 608 205 Time Warner Communications, I
6198 610 373 224 BellSouth Network Solutions,
20115 582 320 333 Charter Communications
7843 517 504 122 Adelphia Corp.
7066 511 207 271 Virginia Polytechnic Institut
852 505 1123 406 Telus Advanced Communications
7132 451 7341 313 Southwestern Bell Internet Se
19029 420 174 277 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 391 329 101 EarthLink, Inc.
705 382 196 237 UUNET Technologies, Inc.
27364 354 28 24 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 686 2091 569 UUNET - Commercial IP service
3301 302 1154 286 TeliaNet Sweden
3320 285 1972 233 Deutsche Telekom AG
8220 257 420 245 COLT Internet - International
1257 238 455 189 SWIPnet Swedish IP Network
680 232 2038 228 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 186 440 184 Song Networks
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
25186 174 215 125 France Telecom Transpac's Tra
5400 171 175 140 BT Ignite European Backbone
8708 161 111 156 Romania Data Systems S.A.
3303 144 541 137 Swisscom Ltd
3215 143 722 69 France Telecom Transpac
719 133 288 103 LANLINK autonomous system
12302 125 18 32 MobiFon S.A.
3269 119 941 64 TELECOM ITALIA
2856 118 1294 109 BTnet UK Regional network
3352 100 844 28 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 346 120 66 ImpSat
8151 241 352 125 UniNet S.A. de C.V.
11172 195 77 43 Servicios Alestra S.A de C.V
7303 184 46 17 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 126 204 92 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
10620 123 8 27 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
11992 89 24 31 Integrated Systems
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
8065 75 10 19 Empresas Publicas de Medellin
4270 70 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14420 62 4 21 ANDINATEL S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 247 39 Fundacao de Amparo a Pesquisa
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 218 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 87 7 26 Internet Egypt Network
2905 60 245 53 The Internetworking Company o
2561 58 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
3208 27 2 13 ARN Network
16637 26 9 19 Johnnic e-Ventures
9129 25 3 4 UUNET Kenya
5713 24 93 22 Telkom SA Ltd
12455 23 4 2 Jambonet Autonomous system
6713 21 38 8 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 732 724 Covad Communications
6197 768 553 BellSouth Network Solutions,
4323 678 473 Time Warner Communications, I
7018 1417 430 AT&T
4134 509 399 Data Communications Bureau
7843 517 395 Adelphia Corp.
6198 610 386 BellSouth Network Solutions,
27364 354 330 Armstrong Cable Services
209 860 328 Qwest
22909 317 305 Comcast Cable Corporation
4355 391 290 EarthLink, Inc.
1239 946 286 Sprint
22773 314 285 Cox Communications, Inc. Atla
4755 342 282 Videsh Sanchar Nigam Ltd. Aut
1221 955 280 Telstra Pty Ltd
6140 346 280 ImpSat
5668 278 260 Century Telephone
9443 340 259 Primus Telecommunications
6347 332 253 SAVVIS Communications Corpora
17676 287 250 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
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
192.172.0.0/19 568 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 /11:15 /12:57
/13:100 /14:276 /15:486 /16:7500 /17:1830 /18:3349
/19:8777 /20:9274 /21:6674 /22:9395 /23:11010 /24:71375
/25:184 /26:236 /27:156 /28:69 /29:21 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 726 732 Covad Communications
6197 623 768 BellSouth Network Solutions,
7018 518 1417 AT&T
6198 470 610 BellSouth Network Solutions,
701 432 1426 UUNET Technologies, Inc.
702 414 686 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
20115 364 582 Charter Communications
690 361 400 Merit Network
3356 356 707 Level 3 Communications, LLC
27364 348 354 Armstrong Cable Services
1239 333 946 Sprint
209 296 860 Qwest
19029 271 420 New Edge Networks
5668 244 278 Century Telephone
25844 244 244 Skadden, Arps, Slate, Meagher
3320 228 285 Deutsche Telekom AG
6517 221 246 Yipes Communications, Inc.
4355 216 391 EarthLink, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:755 13:1 15:6 16:1 17:3
20:7 24:867 32:82 38:44 40:24 43:1
44:2 55:1 56:1 57:16 61:321 62:450
63:1850 64:1805 65:1818 66:2193 67:281 68:640
69:351 80:440 81:166 82:36 128:148 129:264
130:67 131:80 132:17 134:191 135:16 136:181
137:112 138:127 139:29 140:162 141:140 142:111
143:49 144:64 145:39 146:290 147:71 148:314
149:86 150:118 151:60 152:208 153:55 154:1
155:128 156:60 157:62 158:136 159:137 160:46
161:47 162:366 163:72 164:333 165:173 166:104
167:212 168:181 169:94 170:308 171:9 192:5467
193:2476 194:2003 195:1295 196:516 198:3630 199:2826
200:3039 201:2 202:4230 203:5346 204:2946 205:1998
206:2274 207:2620 208:2486 209:2806 210:953 211:389
212:922 213:933 214:23 215:25 216:3398 217:799
218:120 219:89 220:116 221:16
End of report
