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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 18 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143853
Prefixes after maximum aggregation: 85988
Unique aggregates announced to Internet: 69504
Total ASes present in the Internet Routing Table: 17806
Origin-only ASes present in the Internet Routing Table: 15440
Origin ASes announcing only one prefix: 7256
Transit ASes present in the Internet Routing Table: 2366
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1329160804
Equivalent to 79 /8s, 57 /16s and 98 /24s
Percentage of available address space announced: 35.9
Percentage of allocated address space announced: 58.0
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 65985
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27771
Total APNIC prefixes after maximum aggregation: 14024
Prefixes being announced from the APNIC address blocks: 25987
Unique aggregates announced from the APNIC address blocks: 14144
APNIC Region origin ASes present in the Internet Routing Table: 2100
APNIC Region origin ASes announcing only one prefix: 621
APNIC Region transit ASes present in the Internet Routing Table: 332
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 157119744
Equivalent to 9 /8s, 93 /16s and 117 /24s
Percentage of available APNIC address space announced: 71.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 82032
Total ARIN prefixes after maximum aggregation: 50214
Prefixes being announced from the ARIN address blocks: 63617
Unique aggregates announced from the ARIN address blocks: 22414
ARIN Region origin ASes present in the Internet Routing Table: 9412
ARIN Region origin ASes announcing only one prefix: 3387
ARIN Region transit ASes present in the Internet Routing Table: 924
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 229562208
Equivalent to 13 /8s, 174 /16s and 215 /24s
Percentage of available ARIN address space announced: 68.4
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, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 26587
Total RIPE prefixes after maximum aggregation: 18816
Prefixes being announced from the RIPE address blocks: 23402
Unique aggregates announced from the RIPE address blocks: 15587
RIPE Region origin ASes present in the Internet Routing Table: 5746
RIPE Region origin ASes announcing only one prefix: 3113
RIPE Region transit ASes present in the Internet Routing Table: 994
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 169459520
Equivalent to 10 /8s, 25 /16s and 191 /24s
Percentage of available RIPE address space announced: 59.4
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, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6233
Total LACNIC prefixes after maximum aggregation: 2255
Prefixes being announced from the LACNIC address blocks: 6006
Unique aggregates announced from the LACNIC address blocks: 3613
LACNIC Region origin ASes present in the Internet Routing Table: 386
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15585024
Equivalent to 0 /8s, 237 /16s and 207 /24s
Percentage of available LACNIC address space announced: 46.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1224
Total AfriNIC prefixes after maximum aggregation: 679
Prefixes being announced from the AfriNIC address blocks: 828
Unique aggregates announced from the AfriNIC address blocks: 656
AfriNIC Region origin ASes present in the Internet Routing Table: 91
AfriNIC Region origin ASes announcing only one prefix: 21
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 1972992
Equivalent to 0 /8s, 30 /16s and 27 /24s
Percentage of available AfriNIC address space announced: 11.8
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 828 4161 155 Data Communications Bureau
1221 811 1184 585 Telstra Pty Ltd
4766 559 2897 265 Korea Internet Exchange for "
9583 524 40 105 Satyam Infoway Ltd.,
4755 366 133 49 Videsh Sanchar Nigam Ltd. Aut
9929 361 161 33 China Netcom Corp.
9443 354 69 80 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 344 5116 36 XTAGE CORPORATION
17557 328 23 164 Pakistan Telecom
703 317 342 244 UUNET
2764 286 275 233 connect.com.au pty ltd
7474 264 268 201 Optus Communications Pty Ltd
17633 251 56 6 ASN for Shandong Provincial N
9942 237 73 129 COMindico Australia
4802 229 25 138 Wantree Development
9800 226 370 64 CHINA UNICOM
9498 221 49 49 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 197 2182 108 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1387 6771 968 AT&T WorldNet Services
701 1279 8422 922 UUNET Technologies, Inc.
1239 927 2872 620 Sprint
6347 798 373 121 SAVVIS Communications Corpora
4323 778 632 216 Time Warner Telecom
18566 740 193 8 Covad Communications
6197 722 504 297 BellSouth Network Solutions,
209 613 3430 496 Qwest
721 597 20727 274 DLA Systems Automation Center
20115 570 379 295 Charter Communications
3356 566 10935 437 Level 3 Communications, LLC
852 510 1142 398 Telus Advanced Communications
7843 505 686 119 Adelphia Corp.
6198 452 398 205 BellSouth Network Solutions,
7132 431 8045 373 SBC Internet Services
705 430 163 272 UUNET Technologies, Inc.
2386 407 534 229 AT&T Data Communications Serv
22773 399 796 65 Cox Communications, Inc. Atla
4355 388 323 99 EarthLink, Inc.
376 385 363 113 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 649 2020 540 UUNET - Commercial IP service
3320 300 2469 237 Deutsche Telekom AG
3301 282 1098 272 TeliaNet Sweden
8220 275 445 262 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
13083 216 51 8 Mannesmann Datenverarbeitung
3246 215 483 212 Song Networks
1257 213 747 183 SWIPnet Swedish IP Network
8708 203 113 181 Romania Data Systems S.A.
5515 199 842 145 Sonera Solution Autonomous Sy
3215 183 892 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
25186 165 155 113 France Telecom Transpac's Tra
5400 157 272 128 BT Ignite European Backbone
6746 153 29 130 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
3269 143 1195 65 TELECOM ITALIA
8866 135 15 15 Bulgarian Telecommunication C
3303 130 609 129 Swisscom Ltd
12302 127 18 33 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 358 100 54 Servicios Alestra S.A de C.V
6140 338 137 65 ImpSat
8151 285 391 131 UniNet S.A. de C.V.
16814 207 13 7 NSS, S.A.
6147 187 86 19 Telefonica Del Peru
11664 140 11 27 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
6503 128 203 86 AVANTEL, S.A.
7303 121 55 19 Telecom Argentina Stet-France
11992 90 9 30 Integrated Systems
14420 82 6 32 ANDINATEL S.A.
6535 81 5 16 Chilesat Servicios Empresari
11556 81 41 3 Cable-Wireless Panama
11311 77 7 22 Sinectis S.A.
15311 76 21 36 Telefonica Empresas
5639 71 8 8 Telecommunications Services o
4270 69 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
14259 67 4 5 GTD Internet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 252 632 219 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 44 16 1 Noor Advanced Technologies AS
11845 40 9 11 Data Pro Business Online
24835 33 18 6 RAYA Telecom - Egypt
9129 32 3 4 UUNET Kenya
14988 29 16 1 Botswana Telecommunications C
8524 26 2 4 AUCEGYPT Autonomous System
5713 25 125 23 Telkom SA Ltd
6713 25 38 8 Itissalat Al-MAGHRIB
16637 24 9 19 Johnnic e-Ventures
12455 22 4 2 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
21491 14 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 740 732 Covad Communications
6347 798 677 SAVVIS Communications Corpora
4134 828 673 Data Communications Bureau
4323 778 562 Time Warner Telecom
6197 722 425 BellSouth Network Solutions,
9583 524 419 Satyam Infoway Ltd.,
7843 505 386 Adelphia Corp.
5668 382 364 Century Telephone
701 1279 357 UUNET Technologies, Inc.
22773 399 334 Cox Communications, Inc. Atla
27364 350 331 Armstrong Cable Services
22909 360 330 Comcast Cable Corporation
9929 361 328 China Netcom Corp.
721 597 323 DLA Systems Automation Center
4755 366 317 Videsh Sanchar Nigam Ltd. Aut
6467 347 317 E.Spire Communications, Inc.
17676 344 308 XTAGE CORPORATION
1239 927 307 Sprint
11172 358 304 Servicios Alestra S.A de C.V
4766 559 294 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64606 PRIVATE 80.255.192.0/21 2529 Demon Internet
64606 PRIVATE 80.255.200.0/21 2529 Demon Internet
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
63330 RESERVED 213.8.224.0/23 5486 Euronet Digital Comm
63330 RESERVED 213.8.226.0/23 5486 Euronet Digital Comm
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
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 WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:14 /12:62
/13:131 /14:302 /15:541 /16:7971 /17:2164 /18:3772
/19:9695 /20:10156 /21:7489 /22:10433 /23:12075 /24:78389
/25:236 /26:183 /27:94 /28:36 /29:10 /30:57
/31:0 /32:15
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 723 740 Covad Communications
6347 600 798 SAVVIS Communications Corpora
6197 566 722 BellSouth Network Solutions,
7018 530 1387 AT&T WorldNet Services
702 405 649 UUNET - Commercial IP service
4766 367 559 Korea Internet Exchange for "
9583 366 524 Satyam Infoway Ltd.,
701 364 1279 UUNET Technologies, Inc.
1239 364 927 Sprint
27364 336 350 Armstrong Cable Services
5668 334 382 Century Telephone
6198 332 452 BellSouth Network Solutions,
20115 301 570 Charter Communications
9929 289 361 China Netcom Corp.
6517 259 286 Yipes Communications, Inc.
13609 258 301 Choice One Communications Inc
6467 254 347 E.Spire Communications, Inc.
3320 247 300 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
14824 242 265 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:2 12:845 13:1 15:5 16:2
17:3 20:9 24:716 32:66 33:2 38:79
40:54 44:4 55:1 56:3 57:16 60:6
61:457 62:508 63:1853 64:2257 65:2044 66:2431
67:353 68:540 69:693 70:64 80:536 81:359
82:195 83:122 84:32 128:95 129:173 130:86
131:180 132:23 134:184 135:17 136:146 137:49
138:169 139:35 140:161 141:106 142:119 143:59
144:97 145:42 146:288 147:93 148:419 149:110
150:88 151:70 152:163 153:68 154:2 155:129
156:58 157:70 158:140 159:148 160:54 161:71
162:390 163:79 164:179 165:161 166:115 167:220
168:262 169:114 170:274 171:9 192:5566 193:2861
194:2075 195:1447 196:588 198:3659 199:3261 200:3665
201:9 202:4810 203:5657 204:3136 205:2076 206:2282
207:2493 208:2154 209:3044 210:1449 211:577 212:996
213:1190 214:93 215:30 216:3770 217:995 218:185
219:126 220:246 221:31 222:141
End of report
