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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 14 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130940
Prefixes after maximum aggregation: 80728
Unique aggregates announced to Internet: 62757
Total ASes present in the Internet Routing Table: 16303
Origin-only ASes present in the Internet Routing Table: 14164
Origin ASes announcing only one prefix: 6486
Transit ASes present in the Internet Routing Table: 2139
Transit-only ASes present in the Internet Routing Table: 65
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 22
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: 14
Number of addresses announced to Internet: 1270959332
Equivalent to 75 /8s, 193 /16s and 76 /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: 57631
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24069
Total APNIC prefixes after maximum aggregation: 12971
Prefixes being announced from the APNIC address blocks: 22523
Unique aggregates announced from the APNIC address blocks: 12768
APNIC Region origin ASes present in the Internet Routing Table: 1952
APNIC Region origin ASes announcing only one prefix: 579
APNIC Region transit ASes present in the Internet Routing Table: 317
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 132358656
Equivalent to 7 /8s, 227 /16s and 162 /24s
Percentage of available APNIC address space announced: 71.3
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: 77036
Total ARIN prefixes after maximum aggregation: 47888
Prefixes being announced from the ARIN address blocks: 59686
Unique aggregates announced from the ARIN address blocks: 20674
ARIN Region origin ASes present in the Internet Routing Table: 8792
ARIN Region origin ASes announcing only one prefix: 3070
ARIN Region transit ASes present in the Internet Routing Table: 832
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 212036768
Equivalent to 12 /8s, 163 /16s and 108 /24s
Percentage of available ARIN address space announced: 74.3
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, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 23168
Total RIPE prefixes after maximum aggregation: 16941
Prefixes being announced from the RIPE address blocks: 20024
Unique aggregates announced from the RIPE address blocks: 13253
RIPE Region origin ASes present in the Internet Routing Table: 5035
RIPE Region origin ASes announcing only one prefix: 2700
RIPE Region transit ASes present in the Internet Routing Table: 878
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 146793344
Equivalent to 8 /8s, 191 /16s and 227 /24s
Percentage of available RIPE address space announced: 67.3
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: 5554
Total LACNIC prefixes after maximum aggregation: 2231
Prefixes being announced from the LACNIC address blocks: 5072
Unique aggregates announced from the LACNIC address blocks: 3102
LACNIC Region origin ASes present in the Internet Routing Table: 366
LACNIC Region origin ASes announcing only one prefix: 108
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13639168
Equivalent to 0 /8s, 208 /16s and 30 /24s
Percentage of available LACNIC address space announced: 40.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1111
Total AfriNIC prefixes after maximum aggregation: 697
Prefixes being announced from the AfriNIC address blocks: 723
Unique aggregates announced from the AfriNIC address blocks: 554
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 29
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.2
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1756672
Equivalent to 0 /8s, 26 /16s and 206 /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 950 1118 671 Telstra Pty Ltd
4134 676 2397 108 Data Communications Bureau
2907 363 1863 340 SINET Japan
4755 344 130 59 Videsh Sanchar Nigam Ltd. Aut
9443 337 69 80 Primus Telecommunications
703 336 372 261 UUNET
17557 309 22 155 Pakistan Telecom
17676 289 4252 38 XTAGE CORPORATION
2764 276 288 236 connect.com.au pty ltd
4766 268 2896 192 Korea Internet Exchange for "
7474 261 306 212 Optus Communications Pty Ltd
4538 249 1810 20 China Education and Research
9583 247 44 11 Satyam Infoway Ltd.,
3786 233 771 203 DACOM Corporation
9929 219 154 27 China Netcom Corp.
9942 214 69 125 COMindico Australia
9800 208 345 58 CHINA UNICOM
9498 173 22 31 BHARTI BT INTERNET LTD.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4837 145 1271 99 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1420 7058 988 AT&T
701 1415 8664 972 UUNET Technologies, Inc.
1239 950 3095 660 Sprint
209 857 3432 530 Qwest
6197 800 426 276 BellSouth Network Solutions,
18566 732 176 8 Covad Communications
3356 713 10876 564 Level 3 Communications, LLC
4323 681 609 207 Time Warner Communications, I
20115 581 320 332 Charter Communications
6198 561 337 189 BellSouth Network Solutions,
7066 509 207 271 Virginia Polytechnic Institut
7843 506 509 123 Adelphia Corp.
852 504 1124 400 Telus Advanced Communications
7132 451 7357 312 Southwestern Bell Internet Se
19029 421 174 272 New Edge Networks
2386 403 527 213 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 391 329 101 EarthLink, Inc.
705 382 196 237 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
702 677 2074 561 UUNET - Commercial IP service
3301 300 1138 284 TeliaNet Sweden
3320 285 1972 233 Deutsche Telekom AG
8220 262 423 250 COLT Internet - International
1257 242 495 192 SWIPnet Swedish IP Network
680 230 2022 227 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 187 426 185 Song Networks
786 174 1810 174 The JANET IP Service
5515 173 762 135 Sonera Solution Autonomous Sy
25186 172 215 123 France Telecom Transpac's Tra
8708 164 111 157 Romania Data Systems S.A.
5400 156 177 141 BT Ignite European Backbone
3215 144 722 69 France Telecom Transpac
3303 144 557 137 Swisscom Ltd
719 133 288 103 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 118 940 63 TELECOM ITALIA
2856 116 1294 107 BTnet UK Regional network
3352 102 876 30 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 177 46 29 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 135 91 95 Global One Communicaoes Ltda
6503 132 205 94 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
10620 123 8 27 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
8065 76 10 21 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
11992 75 25 31 Integrated Systems
4270 71 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
14420 60 4 23 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 88 7 23 Internet Egypt Network
2905 60 245 53 The Internetworking Company o
2561 57 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 31 4 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
8524 17 1 3 AUCEGYPT Autonomous System
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
3208 14 2 1 ARN Network
17148 14 1 8 First National Bank
2609 12 10 3 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 732 724 Covad Communications
4134 676 568 Data Communications Bureau
6197 800 524 BellSouth Network Solutions,
4323 681 474 Time Warner Communications, I
701 1415 443 UUNET Technologies, Inc.
7843 506 383 Adelphia Corp.
6198 561 372 BellSouth Network Solutions,
27364 354 330 Armstrong Cable Services
209 857 327 Qwest
22909 321 308 Comcast Cable Corporation
1239 950 290 Sprint
4355 391 290 EarthLink, Inc.
22773 318 289 Cox Communications, Inc. Atla
4755 344 285 Videsh Sanchar Nigam Ltd. Aut
6140 346 280 ImpSat
1221 950 279 Telstra Pty Ltd
5668 280 262 Century Telephone
9443 337 257 Primus Telecommunications
17676 289 251 XTAGE CORPORATION
6347 329 250 SAVVIS Communications Corpora
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
192.84.205.0/24 719 LANLINK autonomous system
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
/13:101 /14:278 /15:486 /16:7496 /17:1835 /18:3441
/19:8830 /20:9335 /21:6715 /22:9388 /23:11031 /24:71236
/25:182 /26:229 /27:155 /28:34 /29:9 /30:47
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 726 732 Covad Communications
6197 655 800 BellSouth Network Solutions,
7018 521 1420 AT&T
701 431 1415 UUNET Technologies, Inc.
6198 423 561 BellSouth Network Solutions,
702 406 677 UUNET - Commercial IP service
7066 401 509 Virginia Polytechnic Institut
20115 363 581 Charter Communications
3356 362 713 Level 3 Communications, LLC
690 361 400 Merit Network
27364 348 354 Armstrong Cable Services
1239 338 950 Sprint
209 295 857 Qwest
19029 272 421 New Edge Networks
5668 246 280 Century Telephone
25844 244 244 Skadden, Arps, Slate, Meagher
3320 228 285 Deutsche Telekom AG
4355 216 391 EarthLink, Inc.
6517 211 236 Yipes Communications, Inc.
6386 202 227 bellsouth.net, inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:758 13:1 15:6 16:1 17:3
20:7 24:863 32:82 38:43 40:25 44:2
55:1 56:1 57:14 61:321 62:457 63:1842
64:1783 65:1789 66:2185 67:280 68:645 69:353
80:441 81:173 82:43 128:145 129:264 130:67
131:80 132:17 134:173 135:16 136:183 137:114
138:126 139:31 140:163 141:134 142:112 143:49
144:66 145:42 146:290 147:70 148:315 149:87
150:118 151:60 152:208 153:56 154:1 155:128
156:61 157:62 158:135 159:136 160:46 161:49
162:368 163:70 164:332 165:172 166:104 167:211
168:181 169:96 170:299 171:9 192:5450 193:2467
194:1995 195:1294 196:513 198:3621 199:2835 200:3030
201:3 202:4252 203:5356 204:2942 205:2030 206:2270
207:2574 208:2477 209:2818 210:966 211:393 212:924
213:938 214:23 215:25 216:3332 217:801 218:120
219:87 220:116 221:16
End of report
