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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 11 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 132846
Prefixes after maximum aggregation: 81558
Unique aggregates announced to Internet: 64203
Total ASes present in the Internet Routing Table: 16610
Origin-only ASes present in the Internet Routing Table: 14425
Origin ASes announcing only one prefix: 6649
Transit ASes present in the Internet Routing Table: 2185
Transit-only ASes present in the Internet Routing Table: 67
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: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1285005220
Equivalent to 76 /8s, 151 /16s and 159 /24s
Percentage of available address space announced: 34.7
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 58830
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24600
Total APNIC prefixes after maximum aggregation: 13206
Prefixes being announced from the APNIC address blocks: 23027
Unique aggregates announced from the APNIC address blocks: 13330
APNIC Region origin ASes present in the Internet Routing Table: 1998
APNIC Region origin ASes announcing only one prefix: 596
APNIC Region transit ASes present in the Internet Routing Table: 322
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 135878272
Equivalent to 8 /8s, 25 /16s and 86 /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: 77715
Total ARIN prefixes after maximum aggregation: 48117
Prefixes being announced from the ARIN address blocks: 60159
Unique aggregates announced from the ARIN address blocks: 20748
ARIN Region origin ASes present in the Internet Routing Table: 8930
ARIN Region origin ASes announcing only one prefix: 3157
ARIN Region transit ASes present in the Internet Routing Table: 860
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 216260192
Equivalent to 12 /8s, 227 /16s and 222 /24s
Percentage of available ARIN address space announced: 71.6
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: 23904
Total RIPE prefixes after maximum aggregation: 17347
Prefixes being announced from the RIPE address blocks: 20722
Unique aggregates announced from the RIPE address blocks: 13746
RIPE Region origin ASes present in the Internet Routing Table: 5156
RIPE Region origin ASes announcing only one prefix: 2769
RIPE Region transit ASes present in the Internet Routing Table: 883
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 151173632
Equivalent to 9 /8s, 2 /16s and 186 /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: 5462
Total LACNIC prefixes after maximum aggregation: 2204
Prefixes being announced from the LACNIC address blocks: 5102
Unique aggregates announced from the LACNIC address blocks: 3243
LACNIC Region origin ASes present in the Internet Routing Table: 370
LACNIC Region origin ASes announcing only one prefix: 103
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: 14111744
Equivalent to 0 /8s, 215 /16s and 84 /24s
Percentage of available LACNIC address space announced: 42.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1162
Total AfriNIC prefixes after maximum aggregation: 684
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: 90
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: 4.9
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 932 1120 661 Telstra Pty Ltd
4134 676 2491 118 Data Communications Bureau
4766 425 2905 250 Korea Internet Exchange for "
2907 360 1831 337 SINET Japan
4755 355 130 56 Videsh Sanchar Nigam Ltd. Aut
9443 345 69 80 Primus Telecommunications
9583 345 40 92 Satyam Infoway Ltd.,
703 338 374 261 UUNET
17557 325 23 158 Pakistan Telecom
17676 296 4364 37 XTAGE CORPORATION
2764 290 273 242 connect.com.au pty ltd
7474 275 305 214 Optus Communications Pty Ltd
9942 227 69 130 COMindico Australia
9929 217 154 30 China Netcom Corp.
9800 214 347 55 CHINA UNICOM
9498 188 30 35 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 1398 7009 984 AT&T
701 1369 8646 966 UUNET Technologies, Inc.
1239 945 3096 659 Sprint
3356 813 10920 648 Level 3 Communications, LLC
6197 733 442 273 BellSouth Network Solutions,
209 727 3535 514 Qwest
18566 688 192 9 Covad Communications
4323 683 544 203 Time Warner Communications, I
20115 613 336 335 Charter Communications
6198 545 354 195 BellSouth Network Solutions,
7843 507 572 125 Adelphia Corp.
852 503 1123 399 Telus Advanced Communications
7066 503 207 271 Virginia Polytechnic Institut
7132 454 7449 313 Southwestern Bell Internet Se
2386 421 562 223 AT&T Data Communications Serv
690 398 58 268 Merit Network
4355 393 323 99 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 267 411 252 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 227 505 191 SWIPnet Swedish IP Network
13083 216 51 8 Mannesmann Datenverarbeitung
3246 188 429 186 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 159 787 73 France Telecom Transpac
5400 146 221 131 BT Ignite European Backbone
3303 138 620 138 Swisscom Ltd
3269 125 1037 65 TELECOM ITALIA
12302 125 18 32 MobiFon S.A.
6746 121 19 107 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 358 121 66 ImpSat
8151 246 368 125 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 60 4 26 ANDINATEL S.A.
1916 59 247 39 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
15808 16 1 7 Communication Solutions Ltd i
12258 15 3 10 Vodacom Internet Company
15825 15 1 10 Network Computer Systems Auto
17148 14 1 8 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 688 679 Covad Communications
4134 676 558 Data Communications Bureau
4323 683 480 Time Warner Communications, I
6197 733 460 BellSouth Network Solutions,
701 1369 403 UUNET Technologies, Inc.
7843 507 382 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 545 350 BellSouth Network Solutions,
5668 345 329 Century Telephone
22909 339 320 Comcast Cable Corporation
22773 342 309 Cox Communications, Inc. Atla
4755 355 299 Videsh Sanchar Nigam Ltd. Aut
4355 393 294 EarthLink, Inc.
6140 358 292 ImpSat
1239 945 286 Sprint
20115 613 278 Charter Communications
1221 932 271 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
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
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 /14:284 /15:502 /16:7564 /17:1883 /18:3482
/19:8932 /20:9271 /21:6764 /22:9559 /23:11114 /24:72635
/25:175 /26:266 /27:150 /28:27 /29:5 /30:15
/31:0 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 671 688 Covad Communications
6197 575 733 BellSouth Network Solutions,
7018 500 1398 AT&T
3356 436 813 Level 3 Communications, LLC
702 417 685 UUNET - Commercial IP service
7066 397 503 Virginia Polytechnic Institut
6198 393 545 BellSouth Network Solutions,
701 392 1369 UUNET Technologies, Inc.
20115 387 613 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 331 945 Sprint
5668 304 345 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 222 248 bellsouth.net, inc.
13609 220 260 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:773 13:1 15:6 16:1 17:3
20:7 24:843 32:84 38:44 40:26 44:2
55:1 56:1 57:14 61:366 62:466 63:1814
64:1857 65:1872 66:2324 67:275 68:608 69:390
80:451 81:214 82:77 83:2 128:147 129:263
130:78 131:78 132:16 134:172 135:16 136:182
137:113 138:147 139:40 140:158 141:135 142:104
143:50 144:80 145:39 146:275 147:75 148:300
149:84 150:121 151:61 152:214 153:60 154:1
155:136 156:66 157:56 158:150 159:143 160:47
161:52 162:368 163:65 164:330 165:160 166:106
167:214 168:179 169:97 170:295 171:8 192:5529
193:2575 194:2005 195:1318 196:522 198:3632 199:2884
200:3011 201:7 202:4459 203:5408 204:3028 205:2009
206:2269 207:2599 208:2408 209:2867 210:1055 211:446
212:911 213:1012 214:23 215:26 216:3391 217:833
218:119 219:97 220:167 221:18 222:1
End of report
