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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 24 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133578
Prefixes after maximum aggregation: 81765
Unique aggregates announced to Internet: 64378
Total ASes present in the Internet Routing Table: 16698
Origin-only ASes present in the Internet Routing Table: 14484
Origin ASes announcing only one prefix: 6680
Transit ASes present in the Internet Routing Table: 2214
Transit-only ASes present in the Internet Routing Table: 64
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: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1288466724
Equivalent to 76 /8s, 204 /16s and 113 /24s
Percentage of available address space announced: 34.8
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 59246
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24979
Total APNIC prefixes after maximum aggregation: 13222
Prefixes being announced from the APNIC address blocks: 23353
Unique aggregates announced from the APNIC address blocks: 13191
APNIC Region origin ASes present in the Internet Routing Table: 2005
APNIC Region origin ASes announcing only one prefix: 596
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: 136617088
Equivalent to 8 /8s, 36 /16s and 156 /24s
Percentage of available APNIC address space announced: 73.6
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: 77805
Total ARIN prefixes after maximum aggregation: 48203
Prefixes being announced from the ARIN address blocks: 60269
Unique aggregates announced from the ARIN address blocks: 20874
ARIN Region origin ASes present in the Internet Routing Table: 8970
ARIN Region origin ASes announcing only one prefix: 3173
ARIN Region transit ASes present in the Internet Routing Table: 882
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 218249312
Equivalent to 13 /8s, 2 /16s and 56 /24s
Percentage of available ARIN address space announced: 72.3
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
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: 24067
Total RIPE prefixes after maximum aggregation: 17443
Prefixes being announced from the RIPE address blocks: 20928
Unique aggregates announced from the RIPE address blocks: 13868
RIPE Region origin ASes present in the Internet Routing Table: 5199
RIPE Region origin ASes announcing only one prefix: 2785
RIPE Region transit ASes present in the Internet Routing Table: 891
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 152063616
Equivalent to 9 /8s, 16 /16s and 78 /24s
Percentage of available RIPE address space announced: 69.7
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: 5552
Total LACNIC prefixes after maximum aggregation: 2218
Prefixes being announced from the LACNIC address blocks: 5174
Unique aggregates announced from the LACNIC address blocks: 3273
LACNIC Region origin ASes present in the Internet Routing Table: 369
LACNIC Region origin ASes announcing only one prefix: 101
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 14215936
Equivalent to 0 /8s, 216 /16s and 235 /24s
Percentage of available LACNIC address space announced: 42.4
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1173
Total AfriNIC prefixes after maximum aggregation: 679
Prefixes being announced from the AfriNIC address blocks: 744
Unique aggregates announced from the AfriNIC address blocks: 558
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 25
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: 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 1084 643 Telstra Pty Ltd
4134 669 2491 118 Data Communications Bureau
4766 433 2910 243 Korea Internet Exchange for "
4755 364 130 58 Videsh Sanchar Nigam Ltd. Aut
2907 360 1846 337 SINET Japan
9443 349 70 83 Primus Telecommunications
9583 349 42 24 Satyam Infoway Ltd.,
703 339 374 262 UUNET
17557 335 24 159 Pakistan Telecom
17676 296 4364 37 XTAGE CORPORATION
2764 295 274 240 connect.com.au pty ltd
7474 268 304 208 Optus Communications Pty Ltd
9942 230 70 132 COMindico Australia
9929 225 155 30 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 194 30 36 BHARTI BT INTERNET LTD.
9304 165 159 23 Hutchison Telecom (HK)
4837 157 1539 101 chinanet IDC center beijing n
17964 152 120 60 Beijing Dian-Xin-Tong Network
4739 150 60 137 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1403 7241 983 AT&T
701 1347 8613 963 UUNET Technologies, Inc.
1239 937 3079 653 Sprint
3356 807 10948 657 Level 3 Communications, LLC
6197 734 443 270 BellSouth Network Solutions,
209 715 3531 503 Qwest
18566 689 192 9 Covad Communications
4323 687 543 201 Time Warner Communications, I
20115 610 342 345 Charter Communications
6198 547 354 196 BellSouth Network Solutions,
7843 509 582 130 Adelphia Corp.
852 505 1124 401 Telus Advanced Communications
7066 499 207 271 Virginia Polytechnic Institut
7132 462 7706 317 Southwestern Bell Internet Se
2386 431 579 229 AT&T Data Communications Serv
4355 397 323 103 EarthLink, Inc.
690 392 57 264 Merit Network
19029 388 168 248 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
702 680 2053 566 UUNET - Commercial IP service
3301 336 1178 315 TeliaNet Sweden
3320 286 1965 234 Deutsche Telekom AG
8220 268 411 255 COLT Internet - International
680 242 2027 238 DFN-IP service G-WiN
719 234 288 105 LANLINK autonomous system
1257 229 506 190 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 188 431 186 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 164 800 78 France Telecom Transpac
5400 149 223 132 BT Ignite European Backbone
3303 137 620 137 Swisscom Ltd
6746 127 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 357 121 64 ImpSat
8151 262 384 126 UniNet S.A. de C.V.
11172 206 77 43 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
7303 139 51 31 Telecom Argentina Stet-France
6503 138 204 94 AVANTEL, S.A.
6505 131 90 91 Global One Communicaoes Ltda
6147 123 78 20 Telefonica Del Peru
11556 88 73 25 Cable-Wireless Panama
11992 79 25 29 Integrated Systems
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
11311 68 7 16 Sinectis S.A.
7080 66 4 2 Electronica y Comunicaciones
14420 63 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 104 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 33 2 1 ARN Network
9129 30 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
24835 24 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
12455 22 4 2 Jambonet Autonomous system
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 689 680 Covad Communications
4134 669 551 Data Communications Bureau
4323 687 486 Time Warner Communications, I
6197 734 464 BellSouth Network Solutions,
701 1347 384 UUNET Technologies, Inc.
7843 509 379 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 547 351 BellSouth Network Solutions,
5668 346 331 Century Telephone
9583 349 325 Satyam Infoway Ltd.,
22909 343 323 Comcast Cable Corporation
22773 346 311 Cox Communications, Inc. Atla
4755 364 306 Videsh Sanchar Nigam Ltd. Aut
4355 397 294 EarthLink, Inc.
6140 357 293 ImpSat
1239 937 284 Sprint
6347 363 282 SAVVIS Communications Corpora
376 381 267 Reseau Interordinateurs Scien
9443 349 266 Primus Telecommunications
20115 610 265 Charter Communications
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 211.77.0.0/20 9674 Far EastTone Telecom
18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom
18412 UNALLOCATED 211.77.16.0/20 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 /15:504 /16:7577 /17:1889 /18:3479
/19:8983 /20:9353 /21:6799 /22:9644 /23:11164 /24:72986
/25:190 /26:288 /27:158 /28:28 /29:8 /30:15
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 672 689 Covad Communications
6197 575 734 BellSouth Network Solutions,
7018 498 1403 AT&T
3356 430 807 Level 3 Communications, LLC
702 415 680 UUNET - Commercial IP service
6198 395 547 BellSouth Network Solutions,
7066 393 499 Virginia Polytechnic Institut
20115 380 610 Charter Communications
701 376 1347 UUNET Technologies, Inc.
27364 375 382 Armstrong Cable Services
690 355 392 Merit Network
1239 332 937 Sprint
5668 305 346 Century Telephone
4766 258 433 Korea Internet Exchange for "
19029 256 388 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
3320 234 286 Deutsche Telekom AG
6386 223 249 bellsouth.net, inc.
6517 222 244 Yipes Communications, Inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:784 13:1 15:6 16:1 17:3
20:6 24:843 32:84 38:50 40:26 44:2
55:1 56:1 57:13 61:375 62:468 63:1818
64:1853 65:1905 66:2352 67:276 68:612 69:408
80:475 81:222 82:83 83:8 128:142 129:261
130:46 131:78 132:16 134:181 135:16 136:182
137:108 138:106 139:42 140:161 141:135 142:106
143:48 144:81 145:37 146:282 147:75 148:360
149:84 150:122 151:62 152:214 153:60 154:1
155:127 156:66 157:51 158:149 159:140 160:48
161:52 162:374 163:76 164:326 165:162 166:96
167:212 168:180 169:106 170:294 171:8 192:5527
193:2585 194:2003 195:1332 196:524 198:3641 199:2949
200:3050 201:7 202:4458 203:5474 204:2995 205:1993
206:2253 207:2599 208:2376 209:2860 210:1115 211:466
212:901 213:1069 214:25 215:26 216:3330 217:843
218:139 219:98 220:173 221:18 222:5
End of report
