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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 17 Dec, 2003
Analysis Summary
----------------
BGP routing table entries examined: 131069
Prefixes after maximum aggregation: 80857
Unique aggregates announced to Internet: 63019
Total ASes present in the Internet Routing Table: 16347
Origin-only ASes present in the Internet Routing Table: 14210
Origin ASes announcing only one prefix: 6502
Transit ASes present in the Internet Routing Table: 2137
Transit-only ASes present in the Internet Routing Table: 64
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: 5
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1272114660
Equivalent to 75 /8s, 210 /16s and 237 /24s
Percentage of available address space announced: 34.3
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 57.3
Total number of prefixes smaller than registry allocations: 57693
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 24048
Total APNIC prefixes after maximum aggregation: 13007
Prefixes being announced from the APNIC address blocks: 22498
Unique aggregates announced from the APNIC address blocks: 12794
APNIC Region origin ASes present in the Internet Routing Table: 1963
APNIC Region origin ASes announcing only one prefix: 577
APNIC Region transit ASes present in the Internet Routing Table: 312
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 132599808
Equivalent to 7 /8s, 231 /16s and 80 /24s
Percentage of available APNIC address space announced: 71.4
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: 77095
Total ARIN prefixes after maximum aggregation: 47944
Prefixes being announced from the ARIN address blocks: 59693
Unique aggregates announced from the ARIN address blocks: 20680
ARIN Region origin ASes present in the Internet Routing Table: 8816
ARIN Region origin ASes announcing only one prefix: 3089
ARIN Region transit ASes present in the Internet Routing Table: 828
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 212048800
Equivalent to 12 /8s, 163 /16s and 155 /24s
Percentage of available ARIN address space announced: 74.3
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
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: 23241
Total RIPE prefixes after maximum aggregation: 16972
Prefixes being announced from the RIPE address blocks: 20080
Unique aggregates announced from the RIPE address blocks: 13386
RIPE Region origin ASes present in the Internet Routing Table: 5045
RIPE Region origin ASes announcing only one prefix: 2699
RIPE Region transit ASes present in the Internet Routing Table: 882
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 146713728
Equivalent to 8 /8s, 190 /16s and 172 /24s
Percentage of available RIPE address space announced: 67.3
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: 5577
Total LACNIC prefixes after maximum aggregation: 2230
Prefixes being announced from the LACNIC address blocks: 5100
Unique aggregates announced from the LACNIC address blocks: 3143
LACNIC Region origin ASes present in the Internet Routing Table: 367
LACNIC Region origin ASes announcing only one prefix: 109
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.4
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 13712128
Equivalent to 0 /8s, 209 /16s and 59 /24s
Percentage of available LACNIC address space announced: 40.9
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1102
Total AfriNIC prefixes after maximum aggregation: 704
Prefixes being announced from the AfriNIC address blocks: 725
Unique aggregates announced from the AfriNIC address blocks: 556
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 28
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 1757184
Equivalent to 0 /8s, 26 /16s and 208 /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 953 1118 675 Telstra Pty Ltd
4134 647 2397 109 Data Communications Bureau
2907 363 1863 340 SINET Japan
4755 346 130 59 Videsh Sanchar Nigam Ltd. Aut
703 338 356 262 UUNET
17557 308 22 153 Pakistan Telecom
9443 294 69 88 Primus Telecommunications
17676 289 4252 38 XTAGE CORPORATION
2764 275 288 235 connect.com.au pty ltd
4766 269 2897 193 Korea Internet Exchange for "
7474 261 306 212 Optus Communications Pty Ltd
9583 250 44 11 Satyam Infoway Ltd.,
4538 249 1810 20 China Education and Research
3786 233 771 203 DACOM Corporation
9929 219 154 27 China Netcom Corp.
9942 218 69 125 COMindico Australia
9800 212 347 59 CHINA UNICOM
9498 173 22 31 BHARTI BT INTERNET LTD.
17642 153 40 112 RequestDSL BGP AS# for Sydney
4837 148 1271 99 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1427 7074 991 AT&T
701 1417 8664 973 UUNET Technologies, Inc.
1239 946 3107 657 Sprint
209 857 3432 530 Qwest
6197 793 426 273 BellSouth Network Solutions,
18566 732 176 8 Covad Communications
3356 714 10892 566 Level 3 Communications, LLC
4323 678 593 205 Time Warner Communications, I
20115 581 320 332 Charter Communications
6198 564 336 193 BellSouth Network Solutions,
852 508 1124 403 Telus Advanced Communications
7066 506 207 270 Virginia Polytechnic Institut
7843 504 513 124 Adelphia Corp.
7132 451 7357 312 Southwestern Bell Internet Se
19029 418 173 270 New Edge Networks
2386 403 527 210 AT&T Data Communications Serv
690 400 58 270 Merit Network
4355 388 323 99 EarthLink, Inc.
705 382 196 237 UUNET Technologies, Inc.
376 357 359 114 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 681 2072 564 UUNET - Commercial IP service
3301 300 1154 284 TeliaNet Sweden
3320 285 1972 233 Deutsche Telekom AG
8220 264 423 250 COLT Internet - International
1257 251 497 192 SWIPnet Swedish IP Network
680 229 2022 226 DFN-IP service G-WiN
13083 215 51 8 Mannesmann Datenverarbeitung
3246 187 426 185 Song Networks
25186 178 219 117 France Telecom Transpac's Tra
786 175 1826 175 The JANET IP Service
5515 173 762 135 Sonera Solution Autonomous Sy
8708 164 111 157 Romania Data Systems S.A.
5400 156 177 141 BT Ignite European Backbone
3303 144 557 137 Swisscom Ltd
3215 140 706 67 France Telecom Transpac
719 134 288 104 LANLINK autonomous system
12302 126 18 33 MobiFon S.A.
3269 118 940 63 TELECOM ITALIA
2856 116 1294 107 BTnet UK Regional network
3352 102 876 30 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 346 120 66 ImpSat
8151 241 352 125 UniNet S.A. de C.V.
11172 195 77 43 Servicios Alestra S.A de C.V
7303 177 46 29 Telecom Argentina Stet-France
16814 156 10 5 NSS, S.A.
6505 135 91 95 Global One Communicaoes Ltda
6503 127 204 93 AVANTEL, S.A.
6147 124 78 20 Telefonica Del Peru
10620 122 8 26 TVCABLE BOGOTA
11340 108 3 29 Red Universitaria Nacional
8065 76 10 21 Empresas Publicas de Medellin
15311 76 16 39 Telefonica Empresas
6535 75 5 18 Chilesat Servicios Empresari
6429 74 51 13 AT&T Chile Internet S.A.
11992 74 24 31 Integrated Systems
4270 71 18 9 Red de Interconexion Universi
11311 66 7 22 Sinectis S.A.
7080 64 4 1 Electronica y Comunicaciones
27699 62 168 15 TELECOMUNICACOES DE SAO PAULO
14420 61 4 23 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
2018 94 297 92 Tertiary Education Network
5536 88 6 32 Internet Egypt Network
2905 61 245 53 The Internetworking Company o
2561 59 6 3 Egyptian Universities Network
11845 35 9 10 Data Pro Business Online
11569 30 28 27 satellite data networks
9129 26 3 4 UUNET Kenya
16637 26 9 19 Johnnic e-Ventures
5713 24 93 22 Telkom SA Ltd
12455 23 4 2 Jambonet Autonomous system
24835 23 18 6 RAYA Telecom - Egypt
6713 22 38 9 Itissalat Al-MAGHRIB
10798 18 1 12 Standard Bank of South Africa
8524 17 1 3 AUCEGYPT Autonomous System
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
2609 11 10 3 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 732 724 Covad Communications
4134 647 538 Data Communications Bureau
6197 793 520 BellSouth Network Solutions,
4323 678 473 Time Warner Communications, I
701 1417 444 UUNET Technologies, Inc.
7843 504 380 Adelphia Corp.
6198 564 371 BellSouth Network Solutions,
27364 354 330 Armstrong Cable Services
209 857 327 Qwest
22909 320 307 Comcast Cable Corporation
22773 320 290 Cox Communications, Inc. Atla
1239 946 289 Sprint
4355 388 289 EarthLink, Inc.
4755 346 287 Videsh Sanchar Nigam Ltd. Aut
6140 346 280 ImpSat
1221 953 278 Telstra Pty Ltd
5668 280 262 Century Telephone
6347 330 251 SAVVIS Communications Corpora
17676 289 251 XTAGE CORPORATION
20115 581 249 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 131.95.1.240/28 16430 University of Southe
65397 PRIVATE 165.193.105.0/24 3561 Cable & Wireless USA
65397 PRIVATE 165.193.121.0/24 3561 Cable & Wireless USA
64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA
31749 UNALLOCATED 216.248.43.0/24 19094 Adelphia Business So
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
/13:101 /14:276 /15:487 /16:7511 /17:1832 /18:3424
/19:8826 /20:9330 /21:6707 /22:9385 /23:11012 /24:71403
/25:183 /26:232 /27:157 /28:34 /29:9 /30:48
/31:0 /32:11
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 726 732 Covad Communications
6197 648 793 BellSouth Network Solutions,
7018 527 1427 AT&T
701 429 1417 UUNET Technologies, Inc.
6198 423 564 BellSouth Network Solutions,
702 410 681 UUNET - Commercial IP service
7066 399 506 Virginia Polytechnic Institut
20115 363 581 Charter Communications
690 361 400 Merit Network
3356 361 714 Level 3 Communications, LLC
27364 348 354 Armstrong Cable Services
1239 335 946 Sprint
209 294 857 Qwest
19029 269 418 New Edge Networks
5668 246 280 Century Telephone
25844 244 244 Skadden, Arps, Slate, Meagher
3320 228 285 Deutsche Telekom AG
4355 215 388 EarthLink, Inc.
6517 210 235 Yipes Communications, Inc.
6386 202 227 bellsouth.net, inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 5:1 12:757 13:1 15:6 16:1
17:3 20:7 24:861 32:82 38:43 40:25
44:2 55:1 56:1 57:14 61:322 62:466
63:1833 64:1786 65:1789 66:2172 67:280 68:633
69:356 80:444 81:178 82:51 128:146 129:264
130:67 131:80 132:17 134:178 135:16 136:182
137:114 138:127 139:31 140:163 141:134 142:112
143:49 144:64 145:39 146:290 147:70 148:315
149:87 150:119 151:60 152:209 153:56 154:1
155:128 156:61 157:62 158:135 159:137 160:46
161:49 162:367 163:71 164:331 165:178 166:104
167:211 168:181 169:96 170:300 171:8 192:5499
193:2438 194:2008 195:1309 196:515 198:3626 199:2837
200:3055 201:5 202:4237 203:5372 204:2955 205:2043
206:2268 207:2574 208:2462 209:2821 210:980 211:399
212:946 213:949 214:23 215:25 216:3356 217:790
218:120 219:87 220:115 221:17
End of report
