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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 17 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133415
Prefixes after maximum aggregation: 81644
Unique aggregates announced to Internet: 64124
Total ASes present in the Internet Routing Table: 16628
Origin-only ASes present in the Internet Routing Table: 14422
Origin ASes announcing only one prefix: 6644
Transit ASes present in the Internet Routing Table: 2206
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.9
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1286555300
Equivalent to 76 /8s, 175 /16s and 70 /24s
Percentage of available address space announced: 34.7
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 59204
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24768
Total APNIC prefixes after maximum aggregation: 13180
Prefixes being announced from the APNIC address blocks: 23176
Unique aggregates announced from the APNIC address blocks: 13146
APNIC Region origin ASes present in the Internet Routing Table: 1994
APNIC Region origin ASes announcing only one prefix: 596
APNIC Region transit ASes present in the Internet Routing Table: 325
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 136256896
Equivalent to 8 /8s, 31 /16s and 29 /24s
Percentage of available APNIC address space announced: 73.4
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: 78007
Total ARIN prefixes after maximum aggregation: 48194
Prefixes being announced from the ARIN address blocks: 60378
Unique aggregates announced from the ARIN address blocks: 20761
ARIN Region origin ASes present in the Internet Routing Table: 8942
ARIN Region origin ASes announcing only one prefix: 3156
ARIN Region transit ASes present in the Internet Routing Table: 872
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 217614432
Equivalent to 12 /8s, 248 /16s and 136 /24s
Percentage of available ARIN address space announced: 72.1
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
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: 23981
Total RIPE prefixes after maximum aggregation: 17384
Prefixes being announced from the RIPE address blocks: 20832
Unique aggregates announced from the RIPE address blocks: 13819
RIPE Region origin ASes present in the Internet Routing Table: 5163
RIPE Region origin ASes announcing only one prefix: 2763
RIPE Region transit ASes present in the Internet Routing Table: 891
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 151092736
Equivalent to 9 /8s, 1 /16s and 126 /24s
Percentage of available RIPE address space announced: 69.3
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: 5494
Total LACNIC prefixes after maximum aggregation: 2208
Prefixes being announced from the LACNIC address blocks: 5138
Unique aggregates announced from the LACNIC address blocks: 3264
LACNIC Region origin ASes present in the Internet Routing Table: 369
LACNIC Region origin ASes announcing only one prefix: 103
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 14
Number of LACNIC addresses announced to Internet: 14193152
Equivalent to 0 /8s, 216 /16s and 146 /24s
Percentage of available LACNIC address space announced: 42.3
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1163
Total AfriNIC prefixes after maximum aggregation: 678
Prefixes being announced from the AfriNIC address blocks: 740
Unique aggregates announced from the AfriNIC address blocks: 567
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1766144
Equivalent to 0 /8s, 26 /16s and 243 /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 937 1120 661 Telstra Pty Ltd
4134 669 2491 118 Data Communications Bureau
4766 419 2914 241 Korea Internet Exchange for "
2907 360 1846 337 SINET Japan
4755 354 130 57 Videsh Sanchar Nigam Ltd. Aut
9443 345 69 80 Primus Telecommunications
703 338 374 261 UUNET
9583 336 42 30 Satyam Infoway Ltd.,
17557 323 23 157 Pakistan Telecom
17676 296 4364 37 XTAGE CORPORATION
2764 291 274 241 connect.com.au pty ltd
7474 273 305 213 Optus Communications Pty Ltd
9942 227 69 130 COMindico Australia
9929 223 154 31 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 193 30 34 BHARTI BT INTERNET LTD.
9304 168 159 23 Hutchison Telecom (HK)
4837 159 1539 101 chinanet IDC center beijing n
4739 149 60 136 Commerical Internet eXchange
17964 149 119 59 Beijing Dian-Xin-Tong Network
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1402 7218 986 AT&T
701 1367 8614 965 UUNET Technologies, Inc.
1239 943 3095 657 Sprint
3356 808 10921 655 Level 3 Communications, LLC
6197 732 442 269 BellSouth Network Solutions,
209 716 3533 506 Qwest
18566 688 192 9 Covad Communications
4323 687 544 202 Time Warner Communications, I
20115 612 340 346 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
7843 506 576 128 Adelphia Corp.
852 503 1123 399 Telus Advanced Communications
7066 499 207 271 Virginia Polytechnic Institut
7132 456 7577 315 Southwestern Bell Internet Se
2386 421 578 222 AT&T Data Communications Serv
690 398 58 268 Merit Network
4355 397 323 103 EarthLink, Inc.
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
702 684 2073 570 UUNET - Commercial IP service
3301 335 1174 314 TeliaNet Sweden
3320 285 1965 232 Deutsche Telekom AG
8220 268 411 254 COLT Internet - International
680 241 2027 237 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 168 201 109 France Telecom Transpac's Tra
3215 161 788 74 France Telecom Transpac
5400 145 221 131 BT Ignite European Backbone
3303 138 620 138 Swisscom Ltd
12302 126 18 33 MobiFon S.A.
3269 124 1036 64 TELECOM ITALIA
6746 124 19 111 Dynamic Network Technologies,
2856 117 1294 107 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 356 121 64 ImpSat
8151 260 384 126 UniNet S.A. de C.V.
11172 206 77 43 Servicios Alestra S.A de C.V
16814 156 11 6 NSS, S.A.
6503 141 204 94 AVANTEL, S.A.
7303 137 51 32 Telecom Argentina Stet-France
6505 131 90 91 Global One Communicaoes Ltda
6147 123 78 20 Telefonica Del Peru
11556 88 73 25 Cable-Wireless Panama
11992 78 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 67 7 20 Sinectis S.A.
7080 66 4 2 Electronica y Comunicaciones
14420 66 4 23 ANDINATEL S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
1916 60 247 40 Fundacao de Amparo a Pesquisa
5639 60 7 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 249 632 218 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 26 3 4 UUNET Kenya
16637 25 9 18 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
12455 22 4 2 Jambonet Autonomous system
8524 18 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 688 679 Covad Communications
4134 669 551 Data Communications Bureau
4323 687 485 Time Warner Communications, I
6197 732 463 BellSouth Network Solutions,
701 1367 402 UUNET Technologies, Inc.
7843 506 378 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
5668 347 330 Century Telephone
22909 341 322 Comcast Cable Corporation
22773 343 310 Cox Communications, Inc. Atla
9583 336 306 Satyam Infoway Ltd.,
4755 354 297 Videsh Sanchar Nigam Ltd. Aut
4355 397 294 EarthLink, Inc.
6140 356 292 ImpSat
1239 943 286 Sprint
1221 937 276 Telstra Pty Ltd
376 381 267 Reseau Interordinateurs Scien
20115 612 266 Charter Communications
9443 345 265 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
23861 UNALLOCATED 210.93.46.0/24 3786 DACOM Corporation
23861 UNALLOCATED 210.93.47.0/24 3786 DACOM Corporation
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 /8:20 /9:4 /10:6 /11:15 /12:58
/13:105 /14:287 /15:503 /16:7570 /17:1892 /18:3478
/19:8961 /20:9318 /21:6792 /22:9623 /23:11157 /24:72941
/25:190 /26:282 /27:154 /28:27 /29:5 /30:16
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 671 688 Covad Communications
6197 573 732 BellSouth Network Solutions,
7018 500 1402 AT&T
3356 430 808 Level 3 Communications, LLC
702 417 684 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
701 393 1367 UUNET Technologies, Inc.
7066 393 499 Virginia Polytechnic Institut
20115 384 612 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 331 943 Sprint
5668 305 347 Century Telephone
19029 256 388 New Edge Networks
4766 247 419 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
3320 232 285 Deutsche Telekom AG
6386 224 250 bellsouth.net, inc.
6517 224 248 Yipes Communications, Inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:777 13:1 15:6 16:1 17:3
20:8 24:844 32:84 38:50 40:26 44:2
55:1 56:1 57:14 61:373 62:467 63:1809
64:1840 65:1892 66:2373 67:275 68:610 69:406
80:486 81:225 82:76 83:4 128:138 129:262
130:78 131:78 132:16 134:172 135:16 136:186
137:111 138:151 139:40 140:156 141:135 142:104
143:48 144:81 145:39 146:279 147:75 148:330
149:84 150:122 151:62 152:214 153:60 154:1
155:133 156:66 157:56 158:148 159:141 160:47
161:51 162:380 163:72 164:326 165:159 166:106
167:211 168:180 169:97 170:294 171:8 192:5523
193:2581 194:2006 195:1322 196:522 198:3639 199:2948
200:3023 201:7 202:4441 203:5445 204:3019 205:1998
206:2260 207:2599 208:2409 209:2863 210:1070 211:451
212:903 213:1039 214:25 215:27 216:3394 217:838
218:134 219:96 220:170 221:18 222:1
End of report
