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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 04 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130957
Prefixes after maximum aggregation: 80657
Unique aggregates announced to Internet: 62723
Total ASes present in the Internet Routing Table: 16265
Origin-only ASes present in the Internet Routing Table: 14137
Origin ASes announcing only one prefix: 6471
Transit ASes present in the Internet Routing Table: 2128
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: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1266951652
Equivalent to 75 /8s, 132 /16s and 37 /24s
Percentage of available address space announced: 34.2
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57878
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23863
Total APNIC prefixes after maximum aggregation: 12977
Prefixes being announced from the APNIC address blocks: 22286
Unique aggregates announced from the APNIC address blocks: 12622
APNIC Region origin ASes present in the Internet Routing Table: 1950
APNIC Region origin ASes announcing only one prefix: 573
APNIC Region transit ASes present in the Internet Routing Table: 310
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 131484928
Equivalent to 7 /8s, 214 /16s and 77 /24s
Percentage of available APNIC address space announced: 70.8
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: 77251
Total ARIN prefixes after maximum aggregation: 47874
Prefixes being announced from the ARIN address blocks: 59905
Unique aggregates announced from the ARIN address blocks: 20723
ARIN Region origin ASes present in the Internet Routing Table: 8773
ARIN Region origin ASes announcing only one prefix: 3066
ARIN Region transit ASes present in the Internet Routing Table: 822
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 211347616
Equivalent to 12 /8s, 152 /16s and 232 /24s
Percentage of available ARIN address space announced: 74.1
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: 23127
Total RIPE prefixes after maximum aggregation: 16902
Prefixes being announced from the RIPE address blocks: 19980
Unique aggregates announced from the RIPE address blocks: 13292
RIPE Region origin ASes present in the Internet Routing Table: 5014
RIPE Region origin ASes announcing only one prefix: 2697
RIPE Region transit ASes present in the Internet Routing Table: 883
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 143610496
Equivalent to 8 /8s, 143 /16s and 82 /24s
Percentage of available RIPE address space announced: 65.8
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: 5594
Total LACNIC prefixes after maximum aggregation: 2203
Prefixes being announced from the LACNIC address blocks: 5100
Unique aggregates announced from the LACNIC address blocks: 3103
LACNIC Region origin ASes present in the Internet Routing Table: 365
LACNIC Region origin ASes announcing only one prefix: 107
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: 17
Number of LACNIC addresses announced to Internet: 13524224
Equivalent to 0 /8s, 206 /16s and 93 /24s
Percentage of available LACNIC address space announced: 40.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1120
Total AfriNIC prefixes after maximum aggregation: 701
Prefixes being announced from the AfriNIC address blocks: 723
Unique aggregates announced from the AfriNIC address blocks: 555
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: 15
Number of AfriNIC addresses announced to Internet: 1756928
Equivalent to 0 /8s, 26 /16s and 207 /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 958 1119 679 Telstra Pty Ltd
4134 517 2464 113 Data Communications Bureau
2907 365 1863 342 SINET Japan
4755 342 131 59 Videsh Sanchar Nigam Ltd. Aut
9443 340 71 81 Primus Telecommunications
703 327 356 259 UUNET
17557 301 21 154 Pakistan Telecom
17676 284 4204 34 XTAGE CORPORATION
2764 276 287 236 connect.com.au pty ltd
4766 267 2896 191 Korea Internet Exchange for "
7474 262 306 212 Optus Communications Pty Ltd
4538 248 1778 22 China Education and Research
3786 234 773 203 DACOM Corporation
9583 228 44 11 Satyam Infoway Ltd.,
9929 214 152 27 China Netcom Corp.
9942 211 69 124 COMindico Australia
9800 208 345 58 CHINA UNICOM
9498 174 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 1428 8665 984 UUNET Technologies, Inc.
7018 1415 7057 984 AT&T
1239 943 3092 660 Sprint
209 860 3445 534 Qwest
6197 768 436 214 BellSouth Network Solutions,
18566 730 176 8 Covad Communications
3356 717 10893 570 Level 3 Communications, LLC
4323 677 608 206 Time Warner Communications, I
6198 612 374 225 BellSouth Network Solutions,
20115 582 320 333 Charter Communications
7843 524 504 122 Adelphia Corp.
7066 510 207 270 Virginia Polytechnic Institut
852 505 1123 406 Telus Advanced Communications
7132 447 7309 312 Southwestern Bell Internet Se
19029 433 174 279 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 390 329 101 EarthLink, Inc.
705 385 196 240 UUNET Technologies, Inc.
376 357 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 688 2091 570 UUNET - Commercial IP service
3301 302 1154 286 TeliaNet Sweden
3320 277 1988 230 Deutsche Telekom AG
8220 255 418 244 COLT Internet - International
1257 237 455 188 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
25186 176 215 125 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
5515 175 778 137 Sonera Solution Autonomous Sy
5400 171 175 140 BT Ignite European Backbone
8708 161 111 156 Romania Data Systems S.A.
3215 148 722 73 France Telecom Transpac
3303 143 541 137 Swisscom Ltd
719 133 288 103 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 119 941 64 TELECOM ITALIA
2856 116 1294 108 BTnet UK Regional network
6746 107 16 77 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 344 120 66 ImpSat
8151 241 352 125 UniNet S.A. de C.V.
11172 195 77 43 Servicios Alestra S.A de C.V
7303 183 44 17 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 204 94 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
10620 123 8 27 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
11992 85 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 71 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 250 632 219 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
9129 26 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 23 4 2 Jambonet Autonomous system
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
3208 17 2 1 ARN Network
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 730 722 Covad Communications
6197 768 554 BellSouth Network Solutions,
4323 677 471 Time Warner Communications, I
7018 1415 431 AT&T
4134 517 404 Data Communications Bureau
7843 524 402 Adelphia Corp.
6198 612 387 BellSouth Network Solutions,
27364 354 330 Armstrong Cable Services
209 860 326 Qwest
22909 317 305 Comcast Cable Corporation
5668 310 291 Century Telephone
4355 390 289 EarthLink, Inc.
22773 314 285 Cox Communications, Inc. Atla
1239 943 283 Sprint
4755 342 283 Videsh Sanchar Nigam Ltd. Aut
1221 958 279 Telstra Pty Ltd
6140 344 278 ImpSat
9443 340 259 Primus Telecommunications
6347 332 253 SAVVIS Communications Corpora
17676 284 250 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
23787 UNALLOCATED 202.8.77.0/24 2914 Verio, Inc.
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 /11:14 /12:57
/13:100 /14:277 /15:484 /16:7507 /17:1827 /18:3341
/19:8757 /20:9255 /21:6663 /22:9380 /23:10966 /24:71544
/25:183 /26:235 /27:156 /28:70 /29:21 /30:50
/31:0 /32:41
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 724 730 Covad Communications
6197 623 768 BellSouth Network Solutions,
7018 515 1415 AT&T
6198 473 612 BellSouth Network Solutions,
701 434 1428 UUNET Technologies, Inc.
702 415 688 UUNET - Commercial IP service
7066 402 510 Virginia Polytechnic Institut
3356 365 717 Level 3 Communications, LLC
20115 364 582 Charter Communications
690 361 400 Merit Network
27364 348 354 Armstrong Cable Services
1239 329 943 Sprint
209 296 860 Qwest
19029 283 433 New Edge Networks
5668 276 310 Century Telephone
25844 244 244 Skadden, Arps, Slate, Meagher
3320 219 277 Deutsche Telekom AG
4355 216 390 EarthLink, Inc.
6517 215 240 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:757 13:1 15:6 16:1 17:3
20:7 24:871 32:82 38:44 40:23 43:1
44:2 55:1 56:1 57:12 61:335 62:446
63:1847 64:1828 65:1810 66:2235 67:281 68:643
69:351 80:440 81:162 82:37 128:149 129:250
130:69 131:79 132:17 134:188 135:16 136:182
137:112 138:117 139:29 140:168 141:140 142:110
143:48 144:63 145:41 146:289 147:71 148:315
149:86 150:118 151:60 152:208 153:56 154:1
155:128 156:60 157:61 158:137 159:137 160:46
161:49 162:365 163:73 164:332 165:174 166:104
167:212 168:179 169:94 170:309 171:8 192:5492
193:2460 194:2016 195:1305 196:514 198:3634 199:2834
200:3051 201:3 202:4207 203:5344 204:2939 205:2007
206:2272 207:2616 208:2489 209:2826 210:956 211:391
212:919 213:964 214:23 215:25 216:3434 217:805
218:120 219:86 220:117 221:16
End of report
