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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 28 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131902
Prefixes after maximum aggregation: 81188
Unique aggregates announced to Internet: 63753
Total ASes present in the Internet Routing Table: 16533
Origin-only ASes present in the Internet Routing Table: 14357
Origin ASes announcing only one prefix: 6624
Transit ASes present in the Internet Routing Table: 2176
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 22
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1281572772
Equivalent to 76 /8s, 99 /16s and 63 /24s
Percentage of available address space announced: 34.6
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 58.2
Total number of prefixes smaller than registry allocations: 58325
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24314
Total APNIC prefixes after maximum aggregation: 13103
Prefixes being announced from the APNIC address blocks: 22744
Unique aggregates announced from the APNIC address blocks: 13014
APNIC Region origin ASes present in the Internet Routing Table: 1982
APNIC Region origin ASes announcing only one prefix: 592
APNIC Region transit ASes present in the Internet Routing Table: 314
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 134920832
Equivalent to 8 /8s, 10 /16s and 186 /24s
Percentage of available APNIC address space announced: 72.7
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: 77312
Total ARIN prefixes after maximum aggregation: 47929
Prefixes being announced from the ARIN address blocks: 59828
Unique aggregates announced from the ARIN address blocks: 20847
ARIN Region origin ASes present in the Internet Routing Table: 8890
ARIN Region origin ASes announcing only one prefix: 3138
ARIN Region transit ASes present in the Internet Routing Table: 849
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 215530656
Equivalent to 12 /8s, 216 /16s and 188 /24s
Percentage of available ARIN address space announced: 71.4
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: 23669
Total RIPE prefixes after maximum aggregation: 17266
Prefixes being announced from the RIPE address blocks: 20496
Unique aggregates announced from the RIPE address blocks: 13628
RIPE Region origin ASes present in the Internet Routing Table: 5136
RIPE Region origin ASes announcing only one prefix: 2766
RIPE Region transit ASes present in the Internet Routing Table: 898
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 150185920
Equivalent to 8 /8s, 243 /16s and 167 /24s
Percentage of available RIPE address space announced: 68.9
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: 5452
Total LACNIC prefixes after maximum aggregation: 2218
Prefixes being announced from the LACNIC address blocks: 5047
Unique aggregates announced from the LACNIC address blocks: 3152
LACNIC Region origin ASes present in the Internet Routing Table: 367
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: 5.3
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 14010112
Equivalent to 0 /8s, 213 /16s and 199 /24s
Percentage of available LACNIC address space announced: 41.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1150
Total AfriNIC prefixes after maximum aggregation: 672
Prefixes being announced from the AfriNIC address blocks: 735
Unique aggregates announced from the AfriNIC address blocks: 568
AfriNIC Region origin ASes present in the Internet Routing Table: 90
AfriNIC Region origin ASes announcing only one prefix: 25
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1762560
Equivalent to 0 /8s, 26 /16s and 229 /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 663 Telstra Pty Ltd
4134 667 2457 116 Data Communications Bureau
4766 410 2904 243 Korea Internet Exchange for "
2907 362 1847 338 SINET Japan
9443 345 69 80 Primus Telecommunications
703 338 372 262 UUNET
17557 320 23 158 Pakistan Telecom
9583 301 44 11 Satyam Infoway Ltd.,
17676 295 4348 38 XTAGE CORPORATION
2764 273 270 228 connect.com.au pty ltd
7474 272 305 214 Optus Communications Pty Ltd
4755 266 130 59 Videsh Sanchar Nigam Ltd. Aut
9929 218 154 30 China Netcom Corp.
9942 217 69 129 COMindico Australia
9800 214 347 55 CHINA UNICOM
9498 182 30 34 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
17964 151 117 58 Beijing Dian-Xin-Tong Network
4739 146 60 133 Commerical Internet eXchange
4837 146 1417 99 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1406 8663 971 UUNET Technologies, Inc.
7018 1386 7005 965 AT&T
1239 944 3108 660 Sprint
3356 759 10925 604 Level 3 Communications, LLC
209 716 3532 506 Qwest
6197 697 401 235 BellSouth Network Solutions,
18566 686 192 9 Covad Communications
4323 682 544 201 Time Warner Communications, I
20115 603 330 336 Charter Communications
6198 591 381 229 BellSouth Network Solutions,
7843 512 568 115 Adelphia Corp.
852 503 1124 400 Telus Advanced Communications
7066 503 207 271 Virginia Polytechnic Institut
7132 452 7417 311 Southwestern Bell Internet Se
2386 419 544 221 AT&T Data Communications Serv
690 398 58 268 Merit Network
19029 395 169 252 New Edge Networks
4355 392 323 101 EarthLink, Inc.
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
702 689 2074 574 UUNET - Commercial IP service
3301 334 1174 315 TeliaNet Sweden
3320 279 1972 229 Deutsche Telekom AG
8220 267 410 253 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 233 288 105 LANLINK autonomous system
1257 220 504 189 SWIPnet Swedish IP Network
13083 215 51 8 Mannesmann Datenverarbeitung
3246 187 421 185 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 153 791 70 France Telecom Transpac
5400 139 223 128 BT Ignite European Backbone
3303 136 556 136 Swisscom Ltd
12302 125 18 32 MobiFon S.A.
3269 122 1004 64 TELECOM ITALIA
2856 118 1294 108 BTnet UK Regional network
6746 105 17 94 Dynamic Network Technologies,
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 358 121 66 ImpSat
8151 244 350 126 UniNet S.A. de C.V.
11172 206 77 45 Servicios Alestra S.A de C.V
16814 154 10 5 NSS, S.A.
6503 138 205 96 AVANTEL, S.A.
7303 138 51 29 Telecom Argentina Stet-France
6505 132 90 92 Global One Communicaoes Ltda
6147 124 78 20 Telefonica Del Peru
11340 109 3 31 Red Universitaria Nacional
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 70 18 9 Red de Interconexion Universi
11992 68 25 29 Integrated Systems
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
1916 59 247 39 Fundacao de Amparo a Pesquisa
7738 59 218 13 Telecomunicacoes da Bahia S.A
14420 59 4 26 ANDINATEL 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 26 9 19 Johnnic e-Ventures
9129 25 3 4 UUNET Kenya
5713 24 93 22 Telkom SA Ltd
24835 23 18 6 RAYA Telecom - Egypt
12455 22 4 2 Jambonet Autonomous system
6713 21 38 8 Itissalat Al-MAGHRIB
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
17148 14 1 8 First National Bank
2609 12 10 3 Tunisia BackBone AS
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 686 677 Covad Communications
4134 667 551 Data Communications Bureau
4323 682 481 Time Warner Communications, I
6197 697 462 BellSouth Network Solutions,
7018 1386 421 AT&T
7843 512 397 Adelphia Corp.
6198 591 362 BellSouth Network Solutions,
27364 382 359 Armstrong Cable Services
22909 334 316 Comcast Cable Corporation
5668 325 309 Century Telephone
22773 333 301 Cox Communications, Inc. Atla
6140 358 292 ImpSat
4355 392 291 EarthLink, Inc.
9583 301 290 Satyam Infoway Ltd.,
1239 944 284 Sprint
1221 938 275 Telstra Pty Ltd
376 382 268 Reseau Interordinateurs Scien
20115 603 267 Charter Communications
9443 345 265 Primus Telecommunications
17676 295 257 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
64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D
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 /8:19 /9:4 /10:6 /11:15 /12:58
/13:105 /14:281 /15:501 /16:7543 /17:1858 /18:3450
/19:8879 /20:9218 /21:6668 /22:9481 /23:11019 /24:72065
/25:193 /26:290 /27:170 /28:28 /29:5 /30:37
/31:0 /32:9
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 669 686 Covad Communications
6197 547 697 BellSouth Network Solutions,
7018 508 1386 AT&T
6198 442 591 BellSouth Network Solutions,
701 424 1406 UUNET Technologies, Inc.
702 418 689 UUNET - Commercial IP service
7066 397 503 Virginia Polytechnic Institut
3356 395 759 Level 3 Communications, LLC
20115 383 603 Charter Communications
27364 375 382 Armstrong Cable Services
690 361 398 Merit Network
1239 330 944 Sprint
5668 288 325 Century Telephone
19029 260 395 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 237 410 Korea Internet Exchange for "
3320 227 279 Deutsche Telekom AG
6517 221 245 Yipes Communications, Inc.
6386 220 246 bellsouth.net, inc.
4355 215 392 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:762 13:1 15:6 16:1 17:3
20:7 24:875 32:83 38:44 40:26 44:2
55:1 56:1 57:13 61:357 62:458 63:1821
64:1821 65:1835 66:2241 67:260 68:605 69:374
80:456 81:202 82:78 128:143 129:263 130:73
131:80 132:16 134:177 135:16 136:128 137:115
138:147 139:40 140:156 141:134 142:103 143:48
144:83 145:39 146:288 147:74 148:300 149:85
150:122 151:61 152:215 153:61 154:1 155:131
156:66 157:55 158:137 159:145 160:46 161:51
162:368 163:70 164:332 165:171 166:105 167:219
168:177 169:96 170:304 171:8 192:5515 193:2530
194:2002 195:1320 196:517 198:3635 199:2831 200:2982
201:7 202:4369 203:5417 204:3026 205:2011 206:2271
207:2584 208:2431 209:2892 210:1029 211:416 212:898
213:1002 214:23 215:25 216:3355 217:814 218:119
219:82 220:158 221:18 222:1
End of report
