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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 18 Feb, 2004
Analysis Summary
----------------
BGP routing table entries examined: 133505
Prefixes after maximum aggregation: 81691
Unique aggregates announced to Internet: 64162
Total ASes present in the Internet Routing Table: 16644
Origin-only ASes present in the Internet Routing Table: 14439
Origin ASes announcing only one prefix: 6651
Transit ASes present in the Internet Routing Table: 2205
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: 20
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: 1287187876
Equivalent to 76 /8s, 184 /16s and 237 /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: 59253
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24810
Total APNIC prefixes after maximum aggregation: 13194
Prefixes being announced from the APNIC address blocks: 23215
Unique aggregates announced from the APNIC address blocks: 13160
APNIC Region origin ASes present in the Internet Routing Table: 1996
APNIC Region origin ASes announcing only one prefix: 595
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: 136316288
Equivalent to 8 /8s, 32 /16s and 5 /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: 77968
Total ARIN prefixes after maximum aggregation: 48203
Prefixes being announced from the ARIN address blocks: 60328
Unique aggregates announced from the ARIN address blocks: 20738
ARIN Region origin ASes present in the Internet Routing Table: 8949
ARIN Region origin ASes announcing only one prefix: 3160
ARIN Region transit ASes present in the Internet Routing Table: 874
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 217685344
Equivalent to 12 /8s, 249 /16s and 157 /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: 24007
Total RIPE prefixes after maximum aggregation: 17406
Prefixes being announced from the RIPE address blocks: 20854
Unique aggregates announced from the RIPE address blocks: 13836
RIPE Region origin ASes present in the Internet Routing Table: 5174
RIPE Region origin ASes announcing only one prefix: 2769
RIPE Region transit ASes present in the Internet Routing Table: 889
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 151624192
Equivalent to 9 /8s, 9 /16s and 154 /24s
Percentage of available RIPE address space announced: 69.5
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: 2209
Prefixes being announced from the LACNIC address blocks: 5195
Unique aggregates announced from the LACNIC address blocks: 3274
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: 70
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 12
Number of LACNIC addresses announced to Internet: 14199296
Equivalent to 0 /8s, 216 /16s and 170 /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: 1166
Total AfriNIC prefixes after maximum aggregation: 679
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: 16
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 938 1120 662 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 360 130 57 Videsh Sanchar Nigam Ltd. Aut
9583 352 42 24 Satyam Infoway Ltd.,
9443 345 69 80 Primus Telecommunications
703 339 374 262 UUNET
17557 329 23 162 Pakistan Telecom
17676 296 4364 37 XTAGE CORPORATION
2764 288 273 240 connect.com.au pty ltd
7474 273 305 213 Optus Communications Pty Ltd
9942 228 69 131 COMindico Australia
9929 223 154 31 China Netcom Corp.
9800 215 347 55 CHINA UNICOM
9498 193 30 34 BHARTI BT INTERNET LTD.
9304 169 159 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 7234 986 AT&T
701 1367 8614 965 UUNET Technologies, Inc.
1239 940 3095 656 Sprint
3356 810 10919 658 Level 3 Communications, LLC
6197 732 442 269 BellSouth Network Solutions,
209 717 3534 507 Qwest
18566 689 192 9 Covad Communications
4323 686 544 202 Time Warner Communications, I
20115 614 343 348 Charter Communications
6198 546 354 196 BellSouth Network Solutions,
7843 507 578 127 Adelphia Corp.
852 503 1123 399 Telus Advanced Communications
7066 499 207 271 Virginia Polytechnic Institut
7132 454 7577 313 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
702 682 2073 568 UUNET - Commercial IP service
3301 335 1174 314 TeliaNet Sweden
3320 286 1965 233 Deutsche Telekom AG
8220 269 411 255 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 167 186 109 France Telecom Transpac's Tra
3215 161 788 74 France Telecom Transpac
5400 147 222 130 BT Ignite European Backbone
3303 138 620 138 Swisscom Ltd
3269 124 1036 64 TELECOM ITALIA
6746 124 19 111 Dynamic Network Technologies,
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 356 121 64 ImpSat
8151 259 368 125 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 141 220 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 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
7080 66 4 2 Electronica y Comunicaciones
11311 66 7 22 Sinectis S.A.
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 250 632 219 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 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 20 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 686 484 Time Warner Communications, I
6197 732 463 BellSouth Network Solutions,
701 1367 402 UUNET Technologies, Inc.
7843 507 380 Adelphia Corp.
27364 382 359 Armstrong Cable Services
6198 546 350 BellSouth Network Solutions,
5668 346 329 Century Telephone
9583 352 328 Satyam Infoway Ltd.,
22909 341 322 Comcast Cable Corporation
22773 343 310 Cox Communications, Inc. Atla
4755 360 303 Videsh Sanchar Nigam Ltd. Aut
4355 397 294 EarthLink, Inc.
6140 356 292 ImpSat
1239 940 284 Sprint
1221 938 276 Telstra Pty Ltd
376 381 267 Reseau Interordinateurs Scien
20115 614 266 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
/13:106 /14:287 /15:503 /16:7572 /17:1895 /18:3476
/19:8965 /20:9322 /21:6794 /22:9609 /23:11176 /24:73002
/25:190 /26:283 /27:155 /28:27 /29:8 /30:18
/31:0 /32:14
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 672 689 Covad Communications
6197 573 732 BellSouth Network Solutions,
7018 500 1402 AT&T
3356 435 810 Level 3 Communications, LLC
702 415 682 UUNET - Commercial IP service
6198 394 546 BellSouth Network Solutions,
701 393 1367 UUNET Technologies, Inc.
7066 393 499 Virginia Polytechnic Institut
20115 384 614 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 330 940 Sprint
5668 305 346 Century Telephone
19029 256 388 New Edge Networks
4766 247 419 Korea Internet Exchange for "
25844 244 244 Skadden, Arps, Slate, Meagher
3320 233 286 Deutsche Telekom AG
6517 224 248 Yipes Communications, Inc.
6386 223 249 bellsouth.net, 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 38:48 40:26 44:2
55:1 56:1 57:14 61:374 62:470 63:1811
64:1859 65:1895 66:2369 67:275 68:611 69:404
80:482 81:225 82:76 83:4 128:139 129:262
130:86 131:78 132:16 134:172 135:16 136:186
137:111 138:150 139:40 140:159 141:135 142:104
143:49 144:81 145:39 146:284 147:75 148:329
149:84 150:121 151:62 152:215 153:59 154:1
155:132 156:66 157:56 158:148 159:141 160:47
161:52 162:380 163:72 164:326 165:159 166:106
167:211 168:180 169:98 170:295 171:8 192:5522
193:2583 194:2003 195:1325 196:522 198:3638 199:2945
200:3079 201:7 202:4436 203:5456 204:3015 205:1996
206:2251 207:2593 208:2402 209:2860 210:1086 211:448
212:896 213:1040 214:25 215:27 216:3375 217:846
218:134 219:97 220:172 221:18 222:1
End of report
