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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 12 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133036
Prefixes after maximum aggregation: 81605
Unique aggregates announced to Internet: 64235
Total ASes present in the Internet Routing Table: 16618
Origin-only ASes present in the Internet Routing Table: 14428
Origin ASes announcing only one prefix: 6661
Transit ASes present in the Internet Routing Table: 2190
Transit-only ASes present in the Internet Routing Table: 69
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: 1285378212
Equivalent to 76 /8s, 157 /16s and 80 /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: 58918
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24702
Total APNIC prefixes after maximum aggregation: 13226
Prefixes being announced from the APNIC address blocks: 23113
Unique aggregates announced from the APNIC address blocks: 13329
APNIC Region origin ASes present in the Internet Routing Table: 1993
APNIC Region origin ASes announcing only one prefix: 594
APNIC Region transit ASes present in the Internet Routing Table: 321
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 135886720
Equivalent to 8 /8s, 25 /16s and 119 /24s
Percentage of available APNIC address space announced: 73.2
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: 77775
Total ARIN prefixes after maximum aggregation: 48135
Prefixes being announced from the ARIN address blocks: 60184
Unique aggregates announced from the ARIN address blocks: 20767
ARIN Region origin ASes present in the Internet Routing Table: 8938
ARIN Region origin ASes announcing only one prefix: 3168
ARIN Region transit ASes present in the Internet Routing Table: 863
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 216891232
Equivalent to 12 /8s, 237 /16s and 127 /24s
Percentage of available ARIN address space announced: 71.8
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: 23929
Total RIPE prefixes after maximum aggregation: 17360
Prefixes being announced from the RIPE address blocks: 20754
Unique aggregates announced from the RIPE address blocks: 13741
RIPE Region origin ASes present in the Internet Routing Table: 5159
RIPE Region origin ASes announcing only one prefix: 2771
RIPE Region transit ASes present in the Internet Routing Table: 886
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 151055104
Equivalent to 9 /8s, 0 /16s and 235 /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: 5483
Total LACNIC prefixes after maximum aggregation: 2207
Prefixes being announced from the LACNIC address blocks: 5134
Unique aggregates announced from the LACNIC address blocks: 3264
LACNIC Region origin ASes present in the Internet Routing Table: 370
LACNIC Region origin ASes announcing only one prefix: 104
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 14
Number of LACNIC addresses announced to Internet: 14186496
Equivalent to 0 /8s, 216 /16s and 120 /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: 1145
Total AfriNIC prefixes after maximum aggregation: 677
Prefixes being announced from the AfriNIC address blocks: 734
Unique aggregates announced from the AfriNIC address blocks: 568
AfriNIC Region origin ASes present in the Internet Routing Table: 89
AfriNIC Region origin ASes announcing only one prefix: 24
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 938 1120 661 Telstra Pty Ltd
4134 667 2491 118 Data Communications Bureau
4766 425 2905 250 Korea Internet Exchange for "
2907 360 1831 337 SINET Japan
4755 358 130 59 Videsh Sanchar Nigam Ltd. Aut
9583 346 40 90 Satyam Infoway Ltd.,
9443 345 69 80 Primus Telecommunications
703 338 374 261 UUNET
17557 325 23 158 Pakistan Telecom
17676 296 4364 37 XTAGE CORPORATION
2764 291 273 243 connect.com.au pty ltd
7474 274 305 214 Optus Communications Pty Ltd
9942 227 69 130 COMindico Australia
9929 219 154 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9498 186 30 34 BHARTI BT INTERNET LTD.
17964 153 118 60 Beijing Dian-Xin-Tong Network
4837 149 1489 98 chinanet IDC center beijing n
4739 148 60 135 Commerical Internet eXchange
17642 147 39 108 RequestDSL BGP AS# for Sydney
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1399 7009 986 AT&T
701 1367 8630 964 UUNET Technologies, Inc.
1239 945 3096 659 Sprint
3356 815 10920 649 Level 3 Communications, LLC
6197 732 441 270 BellSouth Network Solutions,
209 726 3535 514 Qwest
18566 688 192 9 Covad Communications
4323 682 544 203 Time Warner Communications, I
20115 614 337 336 Charter Communications
6198 545 354 195 BellSouth Network Solutions,
7843 505 572 124 Adelphia Corp.
852 501 1121 397 Telus Advanced Communications
7066 499 207 271 Virginia Polytechnic Institut
7132 455 7577 314 Southwestern Bell Internet Se
2386 421 562 223 AT&T Data Communications Serv
690 398 58 268 Merit Network
4355 395 323 101 EarthLink, Inc.
19029 387 168 248 New Edge Networks
376 382 359 114 Reseau Interordinateurs Scien
27364 382 28 23 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 685 2073 571 UUNET - Commercial IP service
3301 336 1174 315 TeliaNet Sweden
3320 284 1971 231 Deutsche Telekom AG
8220 269 411 254 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 234 288 105 LANLINK autonomous system
1257 228 506 192 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 189 431 187 Song Networks
786 175 1826 175 The JANET IP Service
8708 171 111 162 Romania Data Systems S.A.
5515 168 762 134 Sonera Solution Autonomous Sy
25186 168 201 109 France Telecom Transpac's Tra
3215 159 787 73 France Telecom Transpac
5400 146 221 131 BT Ignite European Backbone
3303 138 620 138 Swisscom Ltd
6746 127 19 112 Dynamic Network Technologies,
3269 125 1037 65 TELECOM ITALIA
12302 125 18 32 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 358 121 66 ImpSat
8151 257 384 125 UniNet S.A. de C.V.
11172 207 77 44 Servicios Alestra S.A de C.V
16814 155 10 5 NSS, S.A.
6503 137 204 92 AVANTEL, S.A.
7303 136 51 31 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 79 25 28 Integrated Systems
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 18 9 Red de Interconexion Universi
7080 66 4 2 Electronica y Comunicaciones
11311 66 7 22 Sinectis S.A.
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA
14420 61 4 27 ANDINATEL S.A.
1916 60 247 40 Fundacao de Amparo a Pesquisa
7738 59 218 13 Telecomunicacoes da Bahia S.A
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
16637 25 9 18 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
9129 24 3 4 UUNET Kenya
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
12258 15 3 10 Vodacom Internet Company
15825 15 1 10 Network Computer Systems Auto
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 667 549 Data Communications Bureau
4323 682 479 Time Warner Communications, I
6197 732 462 BellSouth Network Solutions,
701 1367 403 UUNET Technologies, Inc.
7843 505 381 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 545 350 BellSouth Network Solutions,
5668 346 330 Century Telephone
22909 340 320 Comcast Cable Corporation
22773 342 309 Cox Communications, Inc. Atla
4755 358 299 Videsh Sanchar Nigam Ltd. Aut
4355 395 294 EarthLink, Inc.
6140 358 292 ImpSat
1239 945 286 Sprint
20115 614 278 Charter Communications
1221 938 277 Telstra Pty Ltd
376 382 268 Reseau Interordinateurs Scien
9443 345 265 Primus Telecommunications
17676 296 259 XTAGE CORPORATION
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 /14:286 /15:502 /16:7561 /17:1879 /18:3482
/19:8937 /20:9293 /21:6775 /22:9562 /23:11132 /24:72756
/25:181 /26:274 /27:150 /28:27 /29:5 /30:16
/31:0 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 671 688 Covad Communications
6197 574 732 BellSouth Network Solutions,
7018 499 1399 AT&T
3356 438 815 Level 3 Communications, LLC
702 417 685 UUNET - Commercial IP service
6198 393 545 BellSouth Network Solutions,
7066 393 499 Virginia Polytechnic Institut
701 392 1367 UUNET Technologies, Inc.
20115 387 614 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 331 945 Sprint
5668 305 346 Century Telephone
19029 255 387 New Edge Networks
4766 247 425 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
3320 232 284 Deutsche Telekom AG
6517 224 248 Yipes Communications, Inc.
6386 221 247 bellsouth.net, inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:779 13:1 15:6 16:1 17:3
20:7 24:842 32:84 38:45 40:26 44:2
55:1 56:1 57:14 61:365 62:462 63:1816
64:1837 65:1874 66:2360 67:275 68:610 69:393
80:452 81:214 82:77 83:3 128:148 129:264
130:78 131:78 132:16 134:172 135:16 136:185
137:113 138:148 139:39 140:158 141:135 142:104
143:50 144:80 145:39 146:282 147:75 148:301
149:84 150:121 151:61 152:214 153:60 154:1
155:137 156:66 157:56 158:150 159:143 160:47
161:52 162:369 163:71 164:325 165:159 166:106
167:207 168:179 169:97 170:295 171:8 192:5527
193:2586 194:2011 195:1317 196:516 198:3634 199:2881
200:3032 201:7 202:4456 203:5464 204:3030 205:2017
206:2263 207:2594 208:2408 209:2872 210:1055 211:449
212:911 213:1018 214:23 215:26 216:3388 217:827
218:119 219:97 220:167 221:18 222:1
End of report
