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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 04 Nov, 2003
Analysis Summary
----------------
BGP routing table entries examined: 130831
Prefixes after maximum aggregation: 80776
Unique aggregates announced to Internet: 61775
Total ASes present in the Internet Routing Table: 16130
Origin-only ASes present in the Internet Routing Table: 13996
Origin ASes announcing only one prefix: 6384
Transit ASes present in the Internet Routing Table: 2134
Transit-only ASes present in the Internet Routing Table: 76
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: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1252164740
Equivalent to 74 /8s, 162 /16s and 132 /24s
Percentage of available address space announced: 33.8
Percentage of allocated address space announced: 60.4
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 57762
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 23254
Total APNIC prefixes after maximum aggregation: 12850
Prefixes being announced from the APNIC address blocks: 21754
Unique aggregates announced from the APNIC address blocks: 12520
APNIC Region origin ASes present in the Internet Routing Table: 1940
APNIC Region origin ASes announcing only one prefix: 572
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: 124985088
Equivalent to 7 /8s, 115 /16s and 31 /24s
Percentage of available APNIC address space announced: 67.3
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: 78027
Total ARIN prefixes after maximum aggregation: 48188
Prefixes being announced from the ARIN address blocks: 60728
Unique aggregates announced from the ARIN address blocks: 20711
ARIN Region origin ASes present in the Internet Routing Table: 8725
ARIN Region origin ASes announcing only one prefix: 3021
ARIN Region transit ASes present in the Internet Routing Table: 836
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 208356256
Equivalent to 12 /8s, 107 /16s and 67 /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: 22928
Total RIPE prefixes after maximum aggregation: 16783
Prefixes being announced from the RIPE address blocks: 19807
Unique aggregates announced from the RIPE address blocks: 12366
RIPE Region origin ASes present in the Internet Routing Table: 4935
RIPE Region origin ASes announcing only one prefix: 2656
RIPE Region transit ASes present in the Internet Routing Table: 872
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 139934976
Equivalent to 8 /8s, 87 /16s and 61 /24s
Percentage of available RIPE address space announced: 75.8
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: 5513
Total LACNIC prefixes after maximum aggregation: 2252
Prefixes being announced from the LACNIC address blocks: 5028
Unique aggregates announced from the LACNIC address blocks: 3210
LACNIC Region origin ASes present in the Internet Routing Table: 358
LACNIC Region origin ASes announcing only one prefix: 104
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: 12
Number of LACNIC addresses announced to Internet: 13483520
Equivalent to 0 /8s, 205 /16s and 190 /24s
Percentage of available LACNIC address space announced: 40.2
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1104
Total AfriNIC prefixes after maximum aggregation: 703
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: 97
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: 5.1
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 387 132 69 Videsh Sanchar Nigam Ltd. Aut
4134 371 2371 109 Data Communications Bureau
2907 366 1863 343 SINET Japan
703 333 356 266 UUNET
17557 296 20 151 Pakistan Telecom
2764 295 288 254 connect.com.au pty ltd
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 204 21 28 BHARTI BT INTERNET LTD.
9800 203 342 54 CHINA UNICOM
9942 202 70 117 COMindico Australia
9929 194 163 36 China Netcom Corp.
17642 157 40 116 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 3471 529 Qwest
701 1440 8682 997 UUNET Technologies, Inc.
7018 1361 7033 942 AT&T
1239 921 3053 665 Sprint
18566 715 176 8 Covad Communications
4323 686 592 200 Time Warner Communications, I
6197 646 399 270 BellSouth Network Solutions,
3356 618 10819 507 Level 3 Communications, LLC
6198 572 328 196 BellSouth Network Solutions,
20115 539 278 305 Charter Communications
7843 521 482 119 Adelphia Corp.
852 513 1107 406 Telus Advanced Communications
7066 511 207 271 Virginia Polytechnic Institut
19029 425 174 275 New Edge Networks
690 410 59 275 Merit Network
7132 408 7187 282 Southwestern Bell Internet Se
4355 399 332 108 EarthLink, Inc.
705 394 183 238 UUNET Technologies, Inc.
2386 388 558 200 AT&T Data Communications Serv
376 359 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 699 2094 580 UUNET - Commercial IP service
3301 310 1169 288 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 187 174 135 BT Ignite European Backbone
3215 184 704 91 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
719 135 288 104 LANLINK autonomous system
6664 134 11 99 TELECOM ITALIA
25186 131 164 92 France Telecom Transpac's Tra
12302 126 18 33 MobiFon S.A.
3246 125 374 123 Song Networks
2856 117 1294 108 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 134 91 94 Global One Communicaoes Ltda
6503 127 205 91 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
4270 68 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
4926 57 4 48 Telintar S.A.
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 88 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
9129 24 3 4 UUNET Kenya
16637 24 9 17 Johnnic e-Ventures
6713 22 38 9 Itissalat Al-MAGHRIB
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 686 486 Time Warner Communications, I
701 1440 443 UUNET Technologies, Inc.
7018 1361 419 AT&T
7843 521 402 Adelphia Corp.
6197 646 376 BellSouth Network Solutions,
6198 572 376 BellSouth Network Solutions,
4755 387 318 Videsh Sanchar Nigam Ltd. Aut
27364 338 315 Armstrong Cable Services
5668 309 292 Century Telephone
4355 399 291 EarthLink, Inc.
22909 307 286 Comcast Cable Corporation
22773 298 279 Cox Communications, Inc. Atla
1221 952 276 Telstra Pty Ltd
6347 346 266 SAVVIS Communications Corpora
4134 371 262 Data Communications Bureau
9583 271 260 Satyam Infoway Ltd.,
1239 921 256 Sprint
376 359 245 Reseau Interordinateurs Scien
17676 279 245 XTAGE CORPORATION
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
64512 PRIVATE 130.150.241.0/24 2152 California State Uni
64512 PRIVATE 130.150.242.0/24 2152 California State Uni
64512 PRIVATE 130.150.244.0/24 2152 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65535 PRIVATE 203.115.81.0/24 23682 Broadband Pacenet In
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 /8:20 /9:4 /10:6 /11:12 /12:55
/13:99 /14:272 /15:468 /16:7445 /17:1791 /18:3254
/19:8612 /20:9199 /21:6697 /22:9733 /23:10920 /24:71517
/25:162 /26:224 /27:159 /28:70 /29:23 /30:49
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
209 745 2042 Qwest
18566 709 715 Covad Communications
6197 506 646 BellSouth Network Solutions,
7018 490 1361 AT&T
701 444 1440 UUNET Technologies, Inc.
6198 439 572 BellSouth Network Solutions,
702 420 699 UUNET - Commercial IP service
7066 403 511 Virginia Polytechnic Institut
690 371 410 Merit Network
20115 347 539 Charter Communications
27364 332 338 Armstrong Cable Services
1239 325 921 Sprint
3356 308 618 Level 3 Communications, LLC
19029 276 425 New Edge Networks
5668 275 309 Century Telephone
25844 244 244 Skadden, Arps, Slate, Meagher
4355 222 399 EarthLink, Inc.
3320 221 279 Deutsche Telekom AG
10753 217 265 XCOM Technologies, INC.
6517 206 230 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 24:849 25:1 32:82 38:52 40:23
43:1 44:2 55:1 57:14 61:335 62:459
63:1905 64:1794 65:1850 66:2189 67:282 68:398
69:293 80:430 81:158 82:75 128:154 129:157
130:66 131:82 132:17 134:138 135:10 136:183
137:120 138:131 139:48 140:163 141:138 142:102
143:46 144:59 145:36 146:281 147:65 148:302
149:79 150:121 151:78 152:214 153:59 154:1
155:131 156:65 157:59 158:140 159:140 160:46
161:68 162:362 163:62 164:316 165:155 166:101
167:311 168:177 169:96 170:318 171:9 192:5444
193:2421 194:2020 195:1335 196:511 198:3684 199:2840
200:3024 201:3 202:4169 203:5348 204:3113 205:2135
206:2295 207:2721 208:2501 209:2839 210:951 211:394
212:969 213:939 214:17 215:25 216:3340 217:787
218:113 219:91 220:114 221:17 222:1
End of report
