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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 25 Jan, 2004
Analysis Summary
----------------
BGP routing table entries examined: 131915
Prefixes after maximum aggregation: 81081
Unique aggregates announced to Internet: 63609
Total ASes present in the Internet Routing Table: 16521
Origin-only ASes present in the Internet Routing Table: 14333
Origin ASes announcing only one prefix: 6618
Transit ASes present in the Internet Routing Table: 2188
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 5.1
Max AS path length visible: 19
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1280882276
Equivalent to 76 /8s, 88 /16s and 182 /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: 58312
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24434
Total APNIC prefixes after maximum aggregation: 13081
Prefixes being announced from the APNIC address blocks: 22863
Unique aggregates announced from the APNIC address blocks: 12955
APNIC Region origin ASes present in the Internet Routing Table: 1979
APNIC Region origin ASes announcing only one prefix: 591
APNIC Region transit ASes present in the Internet Routing Table: 317
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 134686848
Equivalent to 8 /8s, 7 /16s and 40 /24s
Percentage of available APNIC address space announced: 72.6
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: 77213
Total ARIN prefixes after maximum aggregation: 47863
Prefixes being announced from the ARIN address blocks: 59774
Unique aggregates announced from the ARIN address blocks: 20811
ARIN Region origin ASes present in the Internet Routing Table: 8882
ARIN Region origin ASes announcing only one prefix: 3135
ARIN Region transit ASes present in the Internet Routing Table: 848
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 215303328
Equivalent to 12 /8s, 213 /16s and 68 /24s
Percentage of available ARIN address space announced: 71.3
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: 23690
Total RIPE prefixes after maximum aggregation: 17256
Prefixes being announced from the RIPE address blocks: 20519
Unique aggregates announced from the RIPE address blocks: 13611
RIPE Region origin ASes present in the Internet Routing Table: 5132
RIPE Region origin ASes announcing only one prefix: 2761
RIPE Region transit ASes present in the Internet Routing Table: 904
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 149655168
Equivalent to 8 /8s, 235 /16s and 142 /24s
Percentage of available RIPE address space announced: 68.6
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: 5427
Total LACNIC prefixes after maximum aggregation: 2207
Prefixes being announced from the LACNIC address blocks: 5017
Unique aggregates announced from the LACNIC address blocks: 3140
LACNIC Region origin ASes present in the Internet Routing Table: 368
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: 5.4
Max LACNIC Region AS path length visible: 13
Number of LACNIC addresses announced to Internet: 14039808
Equivalent to 0 /8s, 214 /16s and 59 /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: 1145
Total AfriNIC prefixes after maximum aggregation: 674
Prefixes being announced from the AfriNIC address blocks: 733
Unique aggregates announced from the AfriNIC address blocks: 566
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: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1765888
Equivalent to 0 /8s, 26 /16s and 242 /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 905 1101 646 Telstra Pty Ltd
4134 673 2457 116 Data Communications Bureau
4766 407 2900 240 Korea Internet Exchange for "
2907 362 1847 338 SINET Japan
9443 344 69 79 Primus Telecommunications
703 337 372 261 UUNET
17557 320 23 155 Pakistan Telecom
9583 296 44 10 Satyam Infoway Ltd.,
17676 295 4348 38 XTAGE CORPORATION
2764 288 289 237 connect.com.au pty ltd
7474 271 305 213 Optus Communications Pty Ltd
4538 249 1811 21 China Education and Research
9929 218 154 30 China Netcom Corp.
4755 216 129 56 Videsh Sanchar Nigam Ltd. Aut
9942 216 69 128 COMindico Australia
9800 214 347 55 CHINA UNICOM
9498 187 30 35 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
17964 151 117 58 Beijing Dian-Xin-Tong Network
7633 147 23 41 Software Technology Parks of
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1407 8663 972 UUNET Technologies, Inc.
7018 1386 7014 961 AT&T
1239 946 3093 662 Sprint
3356 759 10925 604 Level 3 Communications, LLC
209 716 3532 504 Qwest
6197 696 401 235 BellSouth Network Solutions,
4323 691 592 208 Time Warner Communications, I
18566 685 192 9 Covad Communications
20115 603 330 336 Charter Communications
6198 591 381 228 BellSouth Network Solutions,
7843 511 559 121 Adelphia Corp.
852 505 1124 401 Telus Advanced Communications
7066 503 207 271 Virginia Polytechnic Institut
7132 453 7417 311 Southwestern Bell Internet Se
2386 419 544 221 AT&T Data Communications Serv
690 398 58 268 Merit Network
19029 394 169 251 New Edge Networks
4355 392 323 101 EarthLink, Inc.
376 383 359 114 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 2072 572 UUNET - Commercial IP service
3301 335 1174 316 TeliaNet Sweden
3320 278 1972 229 Deutsche Telekom AG
8220 273 411 258 COLT Internet - International
680 241 2027 237 DFN-IP service G-WiN
719 235 288 105 LANLINK autonomous system
1257 224 504 190 SWIPnet Swedish IP Network
13083 215 51 8 Mannesmann Datenverarbeitung
3246 188 425 186 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 153 791 70 France Telecom Transpac
5400 140 224 129 BT Ignite European Backbone
3303 138 557 138 Swisscom Ltd
12302 125 18 32 MobiFon S.A.
3269 122 1004 64 TELECOM ITALIA
2856 119 1294 109 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 357 121 66 ImpSat
8151 244 350 126 UniNet S.A. de C.V.
11172 198 77 44 Servicios Alestra S.A de C.V
16814 155 10 5 NSS, S.A.
7303 138 51 29 Telecom Argentina Stet-France
6505 132 90 92 Global One Communicaoes Ltda
6503 128 220 93 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
11340 110 3 31 Red Universitaria Nacional
15311 78 18 38 Telefonica Empresas
6535 77 5 19 Chilesat Servicios Empresari
4270 71 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
14420 61 4 23 ANDINATEL S.A.
10292 60 5 27 TELECOMMUNICATIONS OF JAMAICA
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 103 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 32 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 685 676 Covad Communications
4134 673 557 Data Communications Bureau
4323 691 483 Time Warner Communications, I
6197 696 461 BellSouth Network Solutions,
7018 1386 425 AT&T
7843 511 390 Adelphia Corp.
6198 591 363 BellSouth Network Solutions,
27364 382 359 Armstrong Cable Services
22909 332 315 Comcast Cable Corporation
5668 322 306 Century Telephone
22773 332 301 Cox Communications, Inc. Atla
4355 392 291 EarthLink, Inc.
6140 357 291 ImpSat
9583 296 286 Satyam Infoway Ltd.,
1239 946 284 Sprint
376 383 269 Reseau Interordinateurs Scien
20115 603 267 Charter Communications
9443 344 265 Primus Telecommunications
1221 905 259 Telstra Pty Ltd
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
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
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 /12:57
/13:105 /14:282 /15:502 /16:7543 /17:1853 /18:3447
/19:8880 /20:9341 /21:6699 /22:9462 /23:11021 /24:71928
/25:201 /26:291 /27:170 /28:28 /29:7 /30:43
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 668 685 Covad Communications
6197 546 696 BellSouth Network Solutions,
7018 506 1386 AT&T
6198 442 591 BellSouth Network Solutions,
701 425 1407 UUNET Technologies, Inc.
702 419 689 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 333 946 Sprint
5668 285 322 Century Telephone
19029 259 394 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4766 234 407 Korea Internet Exchange for "
3320 226 278 Deutsche Telekom AG
6386 220 246 bellsouth.net, inc.
6517 218 242 Yipes Communications, Inc.
4355 215 392 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:760 13:1 15:6 16:1 17:3
20:7 24:874 32:83 38:44 40:26 44:2
55:1 56:1 57:13 61:346 62:457 63:1823
64:1826 65:1821 66:2244 67:260 68:606 69:369
80:455 81:204 82:78 128:144 129:262 130:70
131:79 132:17 134:176 135:16 136:128 137:115
138:145 139:40 140:157 141:132 142:104 143:48
144:83 145:39 146:287 147:74 148:291 149:85
150:122 151:61 152:215 153:61 154:1 155:130
156:66 157:55 158:136 159:144 160:46 161:51
162:367 163:67 164:331 165:165 166:105 167:218
168:177 169:96 170:306 171:8 192:5513 193:2535
194:2008 195:1319 196:514 198:3643 199:2830 200:2967
201:7 202:4340 203:5367 204:3027 205:2009 206:2272
207:2588 208:2433 209:2862 210:1031 211:422 212:908
213:997 214:23 215:25 216:3364 217:816 218:115
219:83 220:157 221:18 222:1
End of report
