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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 27 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133833
Prefixes after maximum aggregation: 81897
Unique aggregates announced to Internet: 64455
Total ASes present in the Internet Routing Table: 16719
Origin-only ASes present in the Internet Routing Table: 14497
Origin ASes announcing only one prefix: 6691
Transit ASes present in the Internet Routing Table: 2222
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 31
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: 14
Number of addresses announced to Internet: 1289808676
Equivalent to 76 /8s, 224 /16s and 235 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 59336
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24984
Total APNIC prefixes after maximum aggregation: 13239
Prefixes being announced from the APNIC address blocks: 23350
Unique aggregates announced from the APNIC address blocks: 13201
APNIC Region origin ASes present in the Internet Routing Table: 2006
APNIC Region origin ASes announcing only one prefix: 599
APNIC Region transit ASes present in the Internet Routing Table: 321
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 136819840
Equivalent to 8 /8s, 39 /16s and 180 /24s
Percentage of available APNIC address space announced: 73.7
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: 77977
Total ARIN prefixes after maximum aggregation: 48291
Prefixes being announced from the ARIN address blocks: 60369
Unique aggregates announced from the ARIN address blocks: 20917
ARIN Region origin ASes present in the Internet Routing Table: 8978
ARIN Region origin ASes announcing only one prefix: 3175
ARIN Region transit ASes present in the Internet Routing Table: 881
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 218963552
Equivalent to 13 /8s, 13 /16s and 30 /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
31744 - 32767
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 24111
Total RIPE prefixes after maximum aggregation: 17471
Prefixes being announced from the RIPE address blocks: 20976
Unique aggregates announced from the RIPE address blocks: 13917
RIPE Region origin ASes present in the Internet Routing Table: 5208
RIPE Region origin ASes announcing only one prefix: 2793
RIPE Region transit ASes present in the Internet Routing Table: 899
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 152201600
Equivalent to 9 /8s, 18 /16s and 105 /24s
Percentage of available RIPE address space announced: 69.8
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: 5582
Total LACNIC prefixes after maximum aggregation: 2218
Prefixes being announced from the LACNIC address blocks: 5238
Unique aggregates announced from the LACNIC address blocks: 3249
LACNIC Region origin ASes present in the Internet Routing Table: 369
LACNIC Region origin ASes announcing only one prefix: 102
LACNIC Region transit ASes present in the Internet Routing Table: 72
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14330624
Equivalent to 0 /8s, 218 /16s and 171 /24s
Percentage of available LACNIC address space announced: 42.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1177
Total AfriNIC prefixes after maximum aggregation: 678
Prefixes being announced from the AfriNIC address blocks: 748
Unique aggregates announced from the AfriNIC address blocks: 558
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1766400
Equivalent to 0 /8s, 26 /16s and 244 /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 895 1086 641 Telstra Pty Ltd
4134 669 2491 118 Data Communications Bureau
4766 429 2913 235 Korea Internet Exchange for "
4755 362 130 59 Videsh Sanchar Nigam Ltd. Aut
2907 361 1847 338 SINET Japan
9443 347 70 81 Primus Telecommunications
9583 342 42 24 Satyam Infoway Ltd.,
703 339 374 262 UUNET
17557 332 24 162 Pakistan Telecom
2764 296 274 241 connect.com.au pty ltd
17676 296 4364 37 XTAGE CORPORATION
7474 269 303 209 Optus Communications Pty Ltd
9942 230 70 132 COMindico Australia
9929 226 155 30 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 191 30 36 BHARTI BT INTERNET LTD.
9304 164 159 23 Hutchison Telecom (HK)
17964 153 127 61 Beijing Dian-Xin-Tong Network
4739 150 60 137 Commerical Internet eXchange
4837 150 1539 101 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1402 7241 982 AT&T
701 1346 8612 961 UUNET Technologies, Inc.
1239 939 3079 655 Sprint
3356 818 10951 666 Level 3 Communications, LLC
6197 733 443 270 BellSouth Network Solutions,
209 714 3531 502 Qwest
18566 690 192 9 Covad Communications
4323 688 543 202 Time Warner Communications, I
20115 615 343 339 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
852 506 1124 401 Telus Advanced Communications
7066 498 206 270 Virginia Polytechnic Institut
7843 493 582 121 Adelphia Corp.
7132 465 7834 319 Southwestern Bell Internet Se
2386 431 579 230 AT&T Data Communications Serv
690 397 58 267 Merit Network
4355 397 323 103 EarthLink, Inc.
19029 387 168 248 New Edge Networks
27364 382 28 23 Armstrong Cable Services
376 381 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 677 2053 563 UUNET - Commercial IP service
3301 336 1178 315 TeliaNet Sweden
3320 286 1965 234 Deutsche Telekom AG
8220 265 411 252 COLT Internet - International
680 242 2027 238 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 229 506 190 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 191 447 189 Song Networks
786 175 1826 175 The JANET IP Service
8708 171 111 162 Romania Data Systems S.A.
5515 169 762 135 Sonera Solution Autonomous Sy
25186 165 185 108 France Telecom Transpac's Tra
3215 163 800 77 France Telecom Transpac
5400 150 223 133 BT Ignite European Backbone
3303 137 620 137 Swisscom Ltd
6746 128 19 112 Dynamic Network Technologies,
3269 125 1037 65 TELECOM ITALIA
12302 122 18 29 MobiFon S.A.
2856 117 1294 107 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 360 121 64 ImpSat
8151 260 384 128 UniNet S.A. de C.V.
11172 206 77 43 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 140 204 94 AVANTEL, S.A.
7303 136 51 31 Telecom Argentina Stet-France
6505 131 90 91 Global One Communicaoes Ltda
6147 124 78 20 Telefonica Del Peru
11556 88 73 25 Cable-Wireless Panama
6535 78 5 20 Chilesat Servicios Empresari
11992 78 25 29 Integrated Systems
15311 78 18 38 Telefonica Empresas
4270 71 18 9 Red de Interconexion Universi
11311 68 7 16 Sinectis S.A.
7080 66 4 2 Electronica y Comunicaciones
14420 64 4 25 ANDINATEL S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
5639 61 7 12 Telecommunications Services o
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
1916 60 247 40 Fundacao de Amparo a Pesquisa
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 632 219 The Internet Solution
5536 105 8 3 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 90 272 80 The Internetworking Company o
2561 58 6 3 Egyptian Universities Network
11845 36 9 11 Data Pro Business Online
3208 32 2 1 ARN Network
9129 31 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 24 4 2 Jambonet Autonomous system
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
8524 19 2 4 AUCEGYPT Autonomous System
10798 18 1 12 Standard Bank of South Africa
15706 16 2 3 Sudatel Internet Exchange Aut
15808 16 1 7 Communication Solutions Ltd i
12258 15 3 10 Vodacom Internet Company
17148 14 1 8 First National Bank
8346 13 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 690 681 Covad Communications
4134 669 551 Data Communications Bureau
4323 688 486 Time Warner Communications, I
6197 733 463 BellSouth Network Solutions,
701 1346 385 UUNET Technologies, Inc.
7843 493 372 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
5668 346 331 Century Telephone
22909 344 323 Comcast Cable Corporation
9583 342 318 Satyam Infoway Ltd.,
22773 347 311 Cox Communications, Inc. Atla
4755 362 303 Videsh Sanchar Nigam Ltd. Aut
6140 360 296 ImpSat
4355 397 294 EarthLink, Inc.
1239 939 284 Sprint
6347 365 284 SAVVIS Communications Corpora
20115 615 276 Charter Communications
376 381 267 Reseau Interordinateurs Scien
9443 347 266 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
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 /12:59
/13:106 /14:290 /15:507 /16:7589 /17:1903 /18:3484
/19:8997 /20:9369 /21:6824 /22:9654 /23:11197 /24:73106
/25:192 /26:285 /27:160 /28:28 /29:8 /30:16
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 673 690 Covad Communications
6197 574 733 BellSouth Network Solutions,
7018 498 1402 AT&T
3356 442 818 Level 3 Communications, LLC
702 412 677 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
7066 392 498 Virginia Polytechnic Institut
20115 382 615 Charter Communications
701 376 1346 UUNET Technologies, Inc.
27364 375 382 Armstrong Cable Services
690 360 397 Merit Network
1239 334 939 Sprint
5668 305 346 Century Telephone
19029 255 387 New Edge Networks
4766 254 429 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
3320 234 286 Deutsche Telekom AG
6517 225 247 Yipes Communications, Inc.
6386 223 249 bellsouth.net, inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:778 13:1 15:4 16:1 17:3
20:6 24:829 32:84 38:51 40:26 44:2
55:1 56:1 57:13 61:378 62:475 63:1826
64:1857 65:1911 66:2358 67:277 68:611 69:419
80:475 81:220 82:89 83:7 128:139 129:255
130:40 131:79 132:16 134:174 135:16 136:185
137:107 138:151 139:43 140:152 141:135 142:97
143:46 144:78 145:37 146:285 147:75 148:361
149:85 150:124 151:61 152:215 153:60 154:1
155:127 156:66 157:50 158:149 159:140 160:51
161:54 162:376 163:75 164:328 165:162 166:95
167:212 168:187 169:106 170:296 171:8 192:5535
193:2586 194:2004 195:1330 196:528 198:3641 199:2955
200:3101 201:7 202:4449 203:5463 204:3004 205:1992
206:2267 207:2603 208:2379 209:2854 210:1113 211:462
212:899 213:1083 214:25 215:26 216:3320 217:846
218:141 219:96 220:170 221:16 222:6
End of report
