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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 06 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143717
Prefixes after maximum aggregation: 85957
Unique aggregates announced to Internet: 68988
Total ASes present in the Internet Routing Table: 17733
Origin-only ASes present in the Internet Routing Table: 15379
Origin ASes announcing only one prefix: 7217
Transit ASes present in the Internet Routing Table: 2354
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: 26
Prefixes from unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1307518624
Equivalent to 77 /8s, 239 /16s and 38 /24s
Percentage of available address space announced: 35.3
Percentage of allocated address space announced: 57.0
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 66114
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27459
Total APNIC prefixes after maximum aggregation: 13973
Prefixes being announced from the APNIC address blocks: 25702
Unique aggregates announced from the APNIC address blocks: 14089
APNIC Region origin ASes present in the Internet Routing Table: 2091
APNIC Region origin ASes announcing only one prefix: 627
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 154443648
Equivalent to 9 /8s, 52 /16s and 159 /24s
Percentage of available APNIC address space announced: 70.5
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: 82340
Total ARIN prefixes after maximum aggregation: 50291
Prefixes being announced from the ARIN address blocks: 63784
Unique aggregates announced from the ARIN address blocks: 22091
ARIN Region origin ASes present in the Internet Routing Table: 9376
ARIN Region origin ASes announcing only one prefix: 3371
ARIN Region transit ASes present in the Internet Routing Table: 925
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 228653344
Equivalent to 13 /8s, 160 /16s and 249 /24s
Percentage of available ARIN address space announced: 68.1
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, 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: 26519
Total RIPE prefixes after maximum aggregation: 18748
Prefixes being announced from the RIPE address blocks: 23337
Unique aggregates announced from the RIPE address blocks: 15489
RIPE Region origin ASes present in the Internet Routing Table: 5714
RIPE Region origin ASes announcing only one prefix: 3085
RIPE Region transit ASes present in the Internet Routing Table: 985
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 168433472
Equivalent to 10 /8s, 10 /16s and 23 /24s
Percentage of available RIPE address space announced: 59.1
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: 6175
Total LACNIC prefixes after maximum aggregation: 2267
Prefixes being announced from the LACNIC address blocks: 5909
Unique aggregates announced from the LACNIC address blocks: 3589
LACNIC Region origin ASes present in the Internet Routing Table: 386
LACNIC Region origin ASes announcing only one prefix: 113
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 15457280
Equivalent to 0 /8s, 235 /16s and 220 /24s
Percentage of available LACNIC address space announced: 46.1
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1220
Total AfriNIC prefixes after maximum aggregation: 678
Prefixes being announced from the AfriNIC address blocks: 822
Unique aggregates announced from the AfriNIC address blocks: 649
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: 1976576
Equivalent to 0 /8s, 30 /16s and 41 /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 823 4128 151 Data Communications Bureau
1221 816 1056 589 Telstra Pty Ltd
4766 516 2896 272 Korea Internet Exchange for "
9583 511 41 97 Satyam Infoway Ltd.,
4755 363 133 51 Videsh Sanchar Nigam Ltd. Aut
9443 355 70 80 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 341 5084 33 XTAGE CORPORATION
9929 333 159 31 China Netcom Corp.
17557 326 23 162 Pakistan Telecom
703 317 342 244 UUNET
2764 287 258 234 connect.com.au pty ltd
7474 264 268 202 Optus Communications Pty Ltd
9942 237 71 130 COMindico Australia
17633 236 56 6 ASN for Shandong Provincial N
4802 226 25 139 Wantree Development
9800 226 370 64 CHINA UNICOM
9498 220 49 50 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 195 2021 105 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1408 6823 978 AT&T WorldNet Services
701 1298 8426 934 UUNET Technologies, Inc.
6347 950 390 100 SAVVIS Communications Corpora
1239 941 2877 629 Sprint
3356 883 10924 667 Level 3 Communications, LLC
4323 768 586 209 Time Warner Telecom
6197 744 495 309 BellSouth Network Solutions,
18566 739 193 8 Covad Communications
209 615 3445 495 Qwest
721 583 20699 263 DLA Systems Automation Center
20115 568 377 293 Charter Communications
7843 514 677 129 Adelphia Corp.
852 511 1142 399 Telus Advanced Communications
6198 451 394 204 BellSouth Network Solutions,
705 429 163 271 UUNET Technologies, Inc.
7132 427 7921 371 SBC Internet Services
22909 412 829 30 Comcast Cable Corporation
2386 394 533 229 AT&T Data Communications Serv
22773 393 796 64 Cox Communications, Inc. Atla
4355 390 323 101 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 647 2020 537 UUNET - Commercial IP service
3320 301 2468 238 Deutsche Telekom AG
3301 282 1098 271 TeliaNet Sweden
8220 278 448 265 COLT Internet - International
680 244 2025 239 DFN-IP service G-WiN
1257 216 747 185 SWIPnet Swedish IP Network
3246 216 484 213 Song Networks
13083 216 51 8 Mannesmann Datenverarbeitung
5515 199 842 145 Sonera Solution Autonomous Sy
8708 196 113 177 Romania Data Systems S.A.
3215 182 892 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
25186 173 156 114 France Telecom Transpac's Tra
5400 152 208 123 BT Ignite European Backbone
6746 152 29 129 Dynamic Network Technologies,
719 150 288 102 LANLINK autonomous system
3269 138 1131 64 TELECOM ITALIA
8866 131 15 14 Bulgarian Telecommunication C
3303 130 609 129 Swisscom Ltd
12302 128 18 32 MobiFon S.A.
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
11172 350 83 52 Servicios Alestra S.A de C.V
6140 333 137 64 ImpSat
8151 286 391 132 UniNet S.A. de C.V.
16814 204 13 7 NSS, S.A.
6147 186 86 20 Telefonica Del Peru
6505 136 90 94 Global One Communicaoes Ltda
6503 135 202 91 AVANTEL, S.A.
11664 134 11 22 Keytech SA
7303 120 55 19 Telecom Argentina Stet-France
11556 103 65 25 Cable-Wireless Panama
11992 91 9 29 Integrated Systems
14420 82 6 32 ANDINATEL S.A.
6535 81 5 16 Chilesat Servicios Empresari
11311 80 7 18 Sinectis S.A.
15311 75 19 37 Telefonica Empresas
5639 71 8 8 Telecommunications Services o
4270 70 18 9 Red de Interconexion Universi
14117 69 5 4 Telefonica del Sur S.A.
11340 68 5 37 Red Universitaria Nacional
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
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
11845 42 9 11 Data Pro Business Online
20928 42 16 1 Noor Advanced Technologies AS
24835 33 18 6 RAYA Telecom - Egypt
9129 30 3 4 UUNET Kenya
14988 29 16 1 Botswana Telecommunications C
6713 26 38 9 Itissalat Al-MAGHRIB
8524 26 2 4 AUCEGYPT Autonomous System
16637 26 9 19 Johnnic e-Ventures
5713 25 125 23 Telkom SA Ltd
12455 23 4 2 Jambonet Autonomous system
10798 18 1 12 Standard Bank of South Africa
8346 15 7 14 SONATEL-AS Autonomous System
12258 15 3 10 Vodacom Internet Company
15706 15 4 2 Sudatel Internet Exchange Aut
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 950 850 SAVVIS Communications Corpora
18566 739 731 Covad Communications
4134 823 672 Data Communications Bureau
4323 768 559 Time Warner Telecom
6197 744 435 BellSouth Network Solutions,
9583 511 414 Satyam Infoway Ltd.,
7843 514 385 Adelphia Corp.
22909 412 382 Comcast Cable Corporation
701 1298 364 UUNET Technologies, Inc.
5668 381 363 Century Telephone
27364 350 331 Armstrong Cable Services
22773 393 329 Cox Communications, Inc. Atla
6467 353 321 E.Spire Communications, Inc.
721 583 320 DLA Systems Automation Center
1239 941 312 Sprint
4755 363 312 Videsh Sanchar Nigam Ltd. Aut
17676 341 308 XTAGE CORPORATION
9929 333 302 China Netcom Corp.
11172 350 298 Servicios Alestra S.A de C.V
4355 390 289 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65217 PRIVATE 128.101.58.0/28 217 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 /8:18 /9:3 /10:6 /11:15 /12:61
/13:128 /14:302 /15:535 /16:7946 /17:2142 /18:3736
/19:9641 /20:10126 /21:7476 /22:10412 /23:11950 /24:78534
/25:223 /26:190 /27:102 /28:49 /29:18 /30:65
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 729 950 SAVVIS Communications Corpora
18566 722 739 Covad Communications
6197 564 744 BellSouth Network Solutions,
7018 541 1408 AT&T WorldNet Services
3356 500 883 Level 3 Communications, LLC
702 401 647 UUNET - Commercial IP service
1239 368 941 Sprint
701 366 1298 UUNET Technologies, Inc.
9583 357 511 Satyam Infoway Ltd.,
27364 336 350 Armstrong Cable Services
5668 333 381 Century Telephone
6198 333 451 BellSouth Network Solutions,
4766 322 516 Korea Internet Exchange for "
20115 301 568 Charter Communications
9929 265 333 China Netcom Corp.
6467 258 353 E.Spire Communications, Inc.
13609 257 300 Choice One Communications Inc
6517 254 280 Yipes Communications, Inc.
14824 253 277 NewSouth Communications Corp.
3320 249 301 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:2 12:832 13:1 15:5 16:2
17:3 20:9 24:733 32:66 33:2 38:78
40:54 44:4 55:1 56:3 57:16 60:5
61:438 62:516 63:1897 64:2168 65:2054 66:2748
67:347 68:514 69:676 70:64 80:537 81:351
82:191 83:126 84:17 128:180 129:171 130:86
131:183 132:23 134:184 135:17 136:176 137:54
138:169 139:35 140:164 141:107 142:118 143:60
144:100 145:42 146:287 147:94 148:418 149:110
150:88 151:70 152:162 153:67 154:2 155:128
156:57 157:67 158:137 159:150 160:54 161:71
162:387 163:79 164:177 165:161 166:111 167:218
168:246 169:114 170:281 171:9 192:5578 193:2838
194:2080 195:1417 196:581 198:3664 199:3256 200:3608
201:11 202:4785 203:5663 204:3131 205:2070 206:2277
207:2506 208:2166 209:3051 210:1417 211:575 212:1009
213:1196 214:86 215:30 216:3766 217:992 218:176
219:127 220:242 221:30 222:129
End of report
