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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 02 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130785
Prefixes after maximum aggregation: 80805
Unique aggregates announced to Internet: 62585
Total ASes present in the Internet Routing Table: 16109
Origin-only ASes present in the Internet Routing Table: 13981
Origin ASes announcing only one prefix: 6377
Transit ASes present in the Internet Routing Table: 2128
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 21
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1250359724
Equivalent to 74 /8s, 134 /16s and 249 /24s
Percentage of available address space announced: 33.7
Percentage of allocated address space announced: 60.3
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57794
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23254
Total APNIC prefixes after maximum aggregation: 12929
Prefixes being announced from the APNIC address blocks: 21651
Unique aggregates announced from the APNIC address blocks: 12557
APNIC Region origin ASes present in the Internet Routing Table: 1934
APNIC Region origin ASes announcing only one prefix: 567
APNIC Region transit ASes present in the Internet Routing Table: 312
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 124650280
Equivalent to 7 /8s, 110 /16s and 3 /24s
Percentage of available APNIC address space announced: 67.2
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: 77980
Total ARIN prefixes after maximum aggregation: 48128
Prefixes being announced from the ARIN address blocks: 60712
Unique aggregates announced from the ARIN address blocks: 20721
ARIN Region origin ASes present in the Internet Routing Table: 8708
ARIN Region origin ASes announcing only one prefix: 3009
ARIN Region transit ASes present in the Internet Routing Table: 835
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 208408224
Equivalent to 12 /8s, 108 /16s and 14 /24s
Percentage of available ARIN address space announced: 73.1
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 198/7, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 22874
Total RIPE prefixes after maximum aggregation: 16776
Prefixes being announced from the RIPE address blocks: 19751
Unique aggregates announced from the RIPE address blocks: 13081
RIPE Region origin ASes present in the Internet Routing Table: 4939
RIPE Region origin ASes announcing only one prefix: 2665
RIPE Region transit ASes present in the Internet Routing Table: 871
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 138491904
Equivalent to 8 /8s, 65 /16s and 56 /24s
Percentage of available RIPE address space announced: 75.0
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, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5577
Total LACNIC prefixes after maximum aggregation: 2271
Prefixes being announced from the LACNIC address blocks: 5078
Unique aggregates announced from the LACNIC address blocks: 3259
LACNIC Region origin ASes present in the Internet Routing Table: 359
LACNIC Region origin ASes announcing only one prefix: 105
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 13471488
Equivalent to 0 /8s, 205 /16s and 143 /24s
Percentage of available LACNIC address space announced: 40.1
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1099
Total AfriNIC prefixes after maximum aggregation: 701
Prefixes being announced from the AfriNIC address blocks: 718
Unique aggregates announced from the AfriNIC address blocks: 553
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 10
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1748736
Equivalent to 0 /8s, 26 /16s and 175 /24s
Percentage of available AfriNIC address space announced: 10.4
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 952 1108 676 Telstra Pty Ltd
4755 386 132 68 Videsh Sanchar Nigam Ltd. Aut
2907 367 1879 344 SINET Japan
4134 366 2293 106 Data Communications Bureau
703 333 356 266 UUNET
2764 295 288 254 connect.com.au pty ltd
17557 293 20 151 Pakistan Telecom
17676 279 4124 34 XTAGE CORPORATION
9583 271 44 11 Satyam Infoway Ltd.,
7474 264 306 210 Optus Communications Pty Ltd
4766 250 2463 185 Korea Internet Exchange for "
3786 233 773 203 DACOM Corporation
4538 215 1714 21 China Education and Research
9443 213 72 83 Primus Telecommunications
9498 203 21 27 BHARTI BT INTERNET LTD.
9800 203 342 54 CHINA UNICOM
9942 202 70 117 COMindico Australia
9929 192 160 36 China Netcom Corp.
17642 154 40 113 RequestDSL BGP AS# for Sydney
4739 145 58 134 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
209 2042 3436 536 Qwest
701 1439 8682 996 UUNET Technologies, Inc.
7018 1366 7067 947 AT&T
1239 916 3052 662 Sprint
18566 715 176 8 Covad Communications
4323 685 576 199 Time Warner Communications, I
6197 648 445 242 BellSouth Network Solutions,
3356 621 10819 510 Level 3 Communications, LLC
6198 573 328 197 BellSouth Network Solutions,
20115 539 278 305 Charter Communications
7843 521 481 121 Adelphia Corp.
852 516 1107 409 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
19029 425 174 275 New Edge Networks
7132 415 7191 283 Southwestern Bell Internet Se
690 410 59 275 Merit Network
4355 398 332 108 EarthLink, Inc.
705 394 183 238 UUNET Technologies, Inc.
2386 388 526 201 AT&T Data Communications Serv
376 358 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 695 2094 578 UUNET - Commercial IP service
3301 311 1170 289 TeliaNet Sweden
3320 279 2004 236 Deutsche Telekom AG
8220 258 421 247 COLT Internet - International
1257 239 455 190 SWIPnet Swedish IP Network
680 232 2054 229 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
5400 186 172 134 BT Ignite European Backbone
3215 182 688 89 France Telecom Transpac
5515 182 778 143 Sonera Solution Autonomous Sy
786 174 1825 174 The JANET IP Service
8708 160 111 154 Romania Data Systems S.A.
3303 146 557 141 Swisscom Ltd
719 136 288 105 LANLINK autonomous system
6664 134 11 99 TELECOM ITALIA
25186 132 180 93 France Telecom Transpac's Tra
12302 126 18 33 MobiFon S.A.
3246 125 374 123 Song Networks
2856 118 1294 109 BTnet UK Regional network
3269 117 910 64 TELECOM ITALIA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 337 104 99 ImpSat
8151 235 351 126 UniNet S.A. de C.V.
7303 194 42 47 Telecom Argentina Stet-France
11172 192 77 42 Servicios Alestra S.A de C.V
16814 156 10 5 NSS, S.A.
6505 130 90 90 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
10620 122 8 26 TVCABLE BOGOTA
6147 111 70 19 Telefonica Del Peru
11340 105 3 28 Red Universitaria Nacional
11992 87 24 31 Integrated Systems
8065 86 10 18 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
11830 74 22 29 Instituto Costarricense de El
4270 67 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
1916 60 266 40 Fundacao de Amparo a Pesquisa
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 250 632 219 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 87 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 56 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 31 29 28 satellite data networks
16284 30 3 5 GST-N Autonomous System
12455 26 4 2 Jambonet Autonomous system
5713 24 93 22 Telkom SA Ltd
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
9129 22 3 4 UUNET Kenya
10798 17 1 11 Standard Bank of South Africa
15706 15 2 5 Sudatel Internet Exchange Aut
8524 14 1 3 AUCEGYPT Autonomous System
12258 14 3 9 Vodacom Internet Company
17148 14 1 8 First National Bank
3208 13 2 1 ARN Network
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 715 707 Covad Communications
4323 685 486 Time Warner Communications, I
701 1439 443 UUNET Technologies, Inc.
7018 1366 419 AT&T
6197 648 406 BellSouth Network Solutions,
7843 521 400 Adelphia Corp.
6198 573 376 BellSouth Network Solutions,
4755 386 318 Videsh Sanchar Nigam Ltd. Aut
27364 317 294 Armstrong Cable Services
5668 308 291 Century Telephone
4355 398 290 EarthLink, Inc.
22909 306 285 Comcast Cable Corporation
22773 296 279 Cox Communications, Inc. Atla
1221 952 276 Telstra Pty Ltd
6347 346 266 SAVVIS Communications Corpora
4134 366 260 Data Communications Bureau
9583 271 260 Satyam Infoway Ltd.,
1239 916 254 Sprint
17676 279 245 XTAGE CORPORATION
376 358 244 Reseau Interordinateurs Scien
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
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
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.153.136.0/21 568 DISO-UNRRA
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 /11:12 /12:55
/13:99 /14:270 /15:469 /16:7447 /17:1789 /18:3240
/19:8596 /20:9206 /21:6708 /22:9708 /23:10904 /24:71521
/25:163 /26:221 /27:161 /28:71 /29:24 /30:49
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
209 745 2042 Qwest
18566 709 715 Covad Communications
6197 505 648 BellSouth Network Solutions,
7018 490 1366 AT&T
701 443 1439 UUNET Technologies, Inc.
6198 440 573 BellSouth Network Solutions,
702 416 695 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
690 371 410 Merit Network
20115 347 539 Charter Communications
1239 324 916 Sprint
27364 311 317 Armstrong Cable Services
3356 307 621 Level 3 Communications, LLC
19029 276 425 New Edge Networks
5668 274 308 Century Telephone
25844 244 244 Skadden, Arps, Slate, Meagher
3320 221 279 Deutsche Telekom AG
4355 221 398 EarthLink, Inc.
10753 217 265 XCOM Technologies, INC.
6517 210 234 Yipes Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:738 13:1 15:6 16:1 17:2
20:7 24:823 25:1 32:82 38:52 40:23
43:1 44:2 55:1 57:14 61:332 62:456
63:1900 64:1824 65:1857 66:2189 67:285 68:398
69:293 80:428 81:158 82:75 128:156 129:157
130:63 131:81 132:17 134:168 135:10 136:176
137:120 138:131 139:48 140:193 141:137 142:102
143:48 144:60 145:36 146:281 147:67 148:302
149:81 150:121 151:78 152:213 153:59 154:1
155:130 156:65 157:59 158:140 159:141 160:46
161:68 162:362 163:65 164:328 165:155 166:100
167:311 168:177 169:96 170:315 171:9 192:5443
193:2426 194:2022 195:1332 196:511 198:3670 199:2829
200:3076 201:3 202:4161 203:5309 204:3113 205:2136
206:2282 207:2724 208:2512 209:2840 210:940 211:392
212:933 213:940 214:17 215:25 216:3342 217:783
218:114 219:90 220:114 221:17 222:1
End of report
