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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 13 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130342
Prefixes after maximum aggregation: 80725
Unique aggregates announced to Internet: 62387
Total ASes present in the Internet Routing Table: 16173
Origin-only ASes present in the Internet Routing Table: 14041
Origin ASes announcing only one prefix: 6416
Transit ASes present in the Internet Routing Table: 2132
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: 22
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: 13
Number of addresses announced to Internet: 1257614948
Equivalent to 74 /8s, 245 /16s and 174 /24s
Percentage of available address space announced: 33.9
Percentage of allocated address space announced: 60.6
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57599
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23702
Total APNIC prefixes after maximum aggregation: 12944
Prefixes being announced from the APNIC address blocks: 22078
Unique aggregates announced from the APNIC address blocks: 12621
APNIC Region origin ASes present in the Internet Routing Table: 1940
APNIC Region origin ASes announcing only one prefix: 575
APNIC Region transit ASes present in the Internet Routing Table: 315
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 127435264
Equivalent to 7 /8s, 152 /16s and 130 /24s
Percentage of available APNIC address space announced: 68.7
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: 76890
Total ARIN prefixes after maximum aggregation: 47978
Prefixes being announced from the ARIN address blocks: 59658
Unique aggregates announced from the ARIN address blocks: 20558
ARIN Region origin ASes present in the Internet Routing Table: 8746
ARIN Region origin ASes announcing only one prefix: 3042
ARIN Region transit ASes present in the Internet Routing Table: 831
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 208774560
Equivalent to 12 /8s, 113 /16s and 165 /24s
Percentage of available ARIN address space announced: 73.2
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: 23009
Total RIPE prefixes after maximum aggregation: 16827
Prefixes being announced from the RIPE address blocks: 19864
Unique aggregates announced from the RIPE address blocks: 13141
RIPE Region origin ASes present in the Internet Routing Table: 4958
RIPE Region origin ASes announcing only one prefix: 2665
RIPE Region transit ASes present in the Internet Routing Table: 870
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 141011712
Equivalent to 8 /8s, 103 /16s and 171 /24s
Percentage of available RIPE address space announced: 76.4
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: 5637
Total LACNIC prefixes after maximum aggregation: 2268
Prefixes being announced from the LACNIC address blocks: 5138
Unique aggregates announced from the LACNIC address blocks: 3097
LACNIC Region origin ASes present in the Internet Routing Table: 359
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: 5.3
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13465088
Equivalent to 0 /8s, 205 /16s and 118 /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: 1103
Total AfriNIC prefixes after maximum aggregation: 708
Prefixes being announced from the AfriNIC address blocks: 723
Unique aggregates announced from the AfriNIC address blocks: 557
AfriNIC Region origin ASes present in the Internet Routing Table: 97
AfriNIC Region origin ASes announcing only one prefix: 31
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1753600
Equivalent to 0 /8s, 26 /16s and 194 /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 954 1106 676 Telstra Pty Ltd
4134 370 2387 110 Data Communications Bureau
2907 369 1880 346 SINET Japan
4755 368 131 57 Videsh Sanchar Nigam Ltd. Aut
9443 337 72 83 Primus Telecommunications
703 328 355 261 UUNET
17557 305 21 148 Pakistan Telecom
2764 289 288 248 connect.com.au pty ltd
9583 287 44 11 Satyam Infoway Ltd.,
17676 280 4140 31 XTAGE CORPORATION
7474 268 306 213 Optus Communications Pty Ltd
4766 264 2896 191 Korea Internet Exchange for "
4538 247 1714 21 China Education and Research
3786 233 773 203 DACOM Corporation
9929 211 163 36 China Netcom Corp.
9498 208 22 29 BHARTI BT INTERNET LTD.
9800 207 343 57 CHINA UNICOM
9942 204 70 117 COMindico Australia
17642 155 40 114 RequestDSL BGP AS# for Sydney
4739 145 60 134 Commerical Internet eXchange
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1430 8649 989 UUNET Technologies, Inc.
7018 1363 7034 945 AT&T
1239 922 3068 663 Sprint
209 882 3474 534 Qwest
18566 722 176 8 Covad Communications
4323 686 592 200 Time Warner Communications, I
6197 677 404 270 BellSouth Network Solutions,
3356 626 10803 513 Level 3 Communications, LLC
6198 571 333 193 BellSouth Network Solutions,
20115 542 281 308 Charter Communications
7843 526 496 121 Adelphia Corp.
852 515 1107 408 Telus Advanced Communications
7066 510 207 271 Virginia Polytechnic Institut
7132 510 7192 303 Southwestern Bell Internet Se
19029 411 174 275 New Edge Networks
690 400 58 270 Merit Network
2386 396 543 206 AT&T Data Communications Serv
4355 395 329 102 EarthLink, Inc.
705 389 182 239 UUNET Technologies, Inc.
376 359 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 697 2093 578 UUNET - Commercial IP service
3301 311 1170 289 TeliaNet Sweden
3320 276 2004 233 Deutsche Telekom AG
8220 259 421 248 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 187 174 136 BT Ignite European Backbone
5515 176 778 138 Sonera Solution Autonomous Sy
786 175 1826 175 The JANET IP Service
3215 163 703 83 France Telecom Transpac
8708 161 111 155 Romania Data Systems S.A.
25186 151 166 108 France Telecom Transpac's Tra
3303 144 557 139 Swisscom Ltd
719 134 288 104 LANLINK autonomous system
3246 126 378 124 Song Networks
12302 126 18 33 MobiFon S.A.
3269 118 911 65 TELECOM ITALIA
2856 117 1294 108 BTnet UK Regional network
2647 103 4241 50 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 339 105 101 ImpSat
8151 235 351 125 UniNet S.A. de C.V.
11172 192 77 42 Servicios Alestra S.A de C.V
7303 189 43 42 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 134 91 94 Global One Communicaoes Ltda
6503 128 205 92 AVANTEL, S.A.
6147 122 70 18 Telefonica Del Peru
10620 122 8 26 TVCABLE BOGOTA
11340 106 3 29 Red Universitaria Nacional
11992 87 25 30 Integrated Systems
8065 79 10 17 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 69 18 9 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
11311 64 7 24 Sinectis S.A.
27699 60 152 15 TELECOMUNICACOES DE SAO PAULO
1916 59 262 39 Fundacao de Amparo a Pesquisa
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 633 220 The Internet Solution
2018 94 297 92 Tertiary Education Network
5536 88 7 23 Internet Egypt Network
2905 59 245 52 The Internetworking Company o
2561 48 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
9129 25 3 4 UUNET Kenya
5713 24 93 22 Telkom SA Ltd
12455 24 4 2 Jambonet Autonomous system
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
3208 15 2 1 ARN Network
12258 15 3 10 Vodacom Internet Company
15706 15 2 5 Sudatel Internet Exchange Aut
17148 14 1 8 First National Bank
8346 12 6 12 SONATEL-AS Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 722 714 Covad Communications
4323 686 486 Time Warner Communications, I
7018 1363 418 AT&T
6197 677 407 BellSouth Network Solutions,
7843 526 405 Adelphia Corp.
6198 571 378 BellSouth Network Solutions,
209 882 348 Qwest
27364 338 315 Armstrong Cable Services
4755 368 311 Videsh Sanchar Nigam Ltd. Aut
4355 395 293 EarthLink, Inc.
5668 311 293 Century Telephone
22909 310 293 Comcast Cable Corporation
22773 305 281 Cox Communications, Inc. Atla
1221 954 278 Telstra Pty Ltd
9583 287 276 Satyam Infoway Ltd.,
6347 350 271 SAVVIS Communications Corpora
4134 370 260 Data Communications Bureau
1239 922 259 Sprint
9443 337 254 Primus Telecommunications
17676 280 249 XTAGE CORPORATION
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
192.172.0.0/19 568 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 /11:13 /12:56
/13:97 /14:273 /15:475 /16:7459 /17:1821 /18:3250
/19:8644 /20:9183 /21:6658 /22:9502 /23:10896 /24:71216
/25:178 /26:245 /27:166 /28:69 /29:22 /30:50
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 716 722 Covad Communications
6197 538 677 BellSouth Network Solutions,
7018 494 1363 AT&T
701 441 1430 UUNET Technologies, Inc.
6198 436 571 BellSouth Network Solutions,
702 419 697 UUNET - Commercial IP service
7066 402 510 Virginia Polytechnic Institut
690 361 400 Merit Network
20115 347 542 Charter Communications
27364 332 338 Armstrong Cable Services
1239 331 922 Sprint
3356 313 626 Level 3 Communications, LLC
209 310 882 Qwest
5668 277 311 Century Telephone
19029 262 411 New Edge Networks
25844 244 244 Skadden, Arps, Slate, Meagher
4355 220 395 EarthLink, Inc.
3320 218 276 Deutsche Telekom AG
6517 208 233 Yipes Communications, Inc.
14824 201 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:757 13:1 15:6 16:1 17:3
20:7 24:853 32:82 38:42 40:23 43:1
44:2 55:1 57:14 61:348 62:465 63:1838
64:1794 65:1798 66:2189 67:277 68:444 69:326
80:435 81:160 82:70 128:158 129:161 130:66
131:83 132:17 134:174 135:10 136:181 137:121
138:131 139:48 140:194 141:138 142:100 143:48
144:59 145:36 146:284 147:67 148:309 149:83
150:120 151:72 152:209 153:59 154:1 155:129
156:63 157:60 158:141 159:138 160:46 161:68
162:364 163:69 164:323 165:167 166:108 167:210
168:179 169:96 170:313 171:9 192:5463 193:2415
194:2030 195:1317 196:515 198:3628 199:2849 200:3088
201:3 202:4213 203:5363 204:2939 205:2009 206:2287
207:2619 208:2525 209:2807 210:981 211:401 212:901
213:982 214:17 215:25 216:3368 217:787 218:116
219:84 220:115 221:17 222:1
End of report
