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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 13 Aug, 2004
Analysis Summary
----------------
BGP routing table entries examined: 143696
Prefixes after maximum aggregation: 85714
Unique aggregates announced to Internet: 69177
Total ASes present in the Internet Routing Table: 17770
Origin-only ASes present in the Internet Routing Table: 15408
Origin ASes announcing only one prefix: 7231
Transit ASes present in the Internet Routing Table: 2362
Transit-only ASes present in the Internet Routing Table: 74
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1326883232
Equivalent to 79 /8s, 22 /16s and 161 /24s
Percentage of available address space announced: 35.8
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 66035
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 27629
Total APNIC prefixes after maximum aggregation: 13985
Prefixes being announced from the APNIC address blocks: 25851
Unique aggregates announced from the APNIC address blocks: 14087
APNIC Region origin ASes present in the Internet Routing Table: 2096
APNIC Region origin ASes announcing only one prefix: 623
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 155794944
Equivalent to 9 /8s, 73 /16s and 62 /24s
Percentage of available APNIC address space announced: 71.1
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: 82055
Total ARIN prefixes after maximum aggregation: 49996
Prefixes being announced from the ARIN address blocks: 63587
Unique aggregates announced from the ARIN address blocks: 22153
ARIN Region origin ASes present in the Internet Routing Table: 9394
ARIN Region origin ASes announcing only one prefix: 3378
ARIN Region transit ASes present in the Internet Routing Table: 929
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 229433248
Equivalent to 13 /8s, 172 /16s and 223 /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: 26540
Total RIPE prefixes after maximum aggregation: 18801
Prefixes being announced from the RIPE address blocks: 23363
Unique aggregates announced from the RIPE address blocks: 15574
RIPE Region origin ASes present in the Internet Routing Table: 5729
RIPE Region origin ASes announcing only one prefix: 3094
RIPE Region transit ASes present in the Internet Routing Table: 989
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 168794176
Equivalent to 10 /8s, 15 /16s and 152 /24s
Percentage of available RIPE address space announced: 59.2
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: 6253
Total LACNIC prefixes after maximum aggregation: 2254
Prefixes being announced from the LACNIC address blocks: 6019
Unique aggregates announced from the LACNIC address blocks: 3624
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: 15508736
Equivalent to 0 /8s, 236 /16s and 165 /24s
Percentage of available LACNIC address space announced: 46.2
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1216
Total AfriNIC prefixes after maximum aggregation: 678
Prefixes being announced from the AfriNIC address blocks: 820
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: 22
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: 1977344
Equivalent to 0 /8s, 30 /16s and 44 /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 827 4129 154 Data Communications Bureau
1221 812 1184 585 Telstra Pty Ltd
4766 549 2897 264 Korea Internet Exchange for "
9583 519 40 106 Satyam Infoway Ltd.,
4755 364 133 48 Videsh Sanchar Nigam Ltd. Aut
9929 360 161 32 China Netcom Corp.
9443 355 70 80 Primus Telecommunications
2907 353 1840 327 SINET Japan
17676 342 5100 34 XTAGE CORPORATION
17557 327 23 164 Pakistan Telecom
703 317 342 244 UUNET
2764 289 275 236 connect.com.au pty ltd
7474 264 268 202 Optus Communications Pty Ltd
17633 241 56 6 ASN for Shandong Provincial N
9942 238 71 131 COMindico Australia
4802 228 25 139 Wantree Development
9800 226 370 64 CHINA UNICOM
9498 219 49 49 BHARTI BT INTERNET LTD.
10036 202 18 183 C&M Communication Co. Ltd.
4837 190 2017 104 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1392 6803 967 AT&T WorldNet Services
701 1288 8425 931 UUNET Technologies, Inc.
6347 943 390 100 SAVVIS Communications Corpora
1239 941 2878 629 Sprint
6197 778 524 299 BellSouth Network Solutions,
4323 774 605 212 Time Warner Telecom
18566 740 193 8 Covad Communications
209 613 3429 495 Qwest
721 596 20730 276 DLA Systems Automation Center
20115 568 377 293 Charter Communications
3356 564 10948 435 Level 3 Communications, LLC
852 510 1142 398 Telus Advanced Communications
7843 498 681 115 Adelphia Corp.
6198 450 425 203 BellSouth Network Solutions,
705 430 163 272 UUNET Technologies, Inc.
7132 430 8045 372 SBC Internet Services
2386 410 534 230 AT&T Data Communications Serv
22773 401 796 66 Cox Communications, Inc. Atla
4355 388 323 99 EarthLink, Inc.
376 384 363 113 Reseau Interordinateurs Scien
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 650 2020 541 UUNET - Commercial IP service
3320 301 2469 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 196 113 176 Romania Data Systems S.A.
3215 182 892 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
25186 165 155 113 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 143 1195 65 TELECOM ITALIA
8866 134 15 14 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 357 100 54 Servicios Alestra S.A de C.V
6140 334 137 64 ImpSat
8151 284 390 130 UniNet S.A. de C.V.
16814 207 13 7 NSS, S.A.
6147 188 86 20 Telefonica Del Peru
6503 143 203 86 AVANTEL, S.A.
6505 137 90 94 Global One Communicaoes Ltda
11664 134 11 22 Keytech SA
7303 121 55 19 Telecom Argentina Stet-France
11992 91 9 29 Integrated Systems
11556 89 51 11 Cable-Wireless Panama
14420 82 6 32 ANDINATEL S.A.
6535 81 5 16 Chilesat Servicios Empresari
11311 79 7 18 Sinectis S.A.
15311 76 21 36 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.
10292 67 6 26 TELECOMMUNICATIONS OF JAMAICA
11340 67 5 36 Red Universitaria Nacional
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 253 632 220 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
9129 32 3 4 UUNET Kenya
24835 32 18 5 RAYA Telecom - Egypt
6713 26 38 9 Itissalat Al-MAGHRIB
8524 26 2 4 AUCEGYPT Autonomous System
5713 25 125 23 Telkom SA Ltd
14988 25 16 1 Botswana Telecommunications C
16637 24 9 19 Johnnic e-Ventures
12455 22 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
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6347 943 843 SAVVIS Communications Corpora
18566 740 732 Covad Communications
4134 827 673 Data Communications Bureau
4323 774 562 Time Warner Telecom
6197 778 479 BellSouth Network Solutions,
9583 519 413 Satyam Infoway Ltd.,
7843 498 383 Adelphia Corp.
5668 384 366 Century Telephone
701 1288 357 UUNET Technologies, Inc.
22773 401 335 Cox Communications, Inc. Atla
27364 350 331 Armstrong Cable Services
22909 360 330 Comcast Cable Corporation
9929 360 328 China Netcom Corp.
6467 354 322 E.Spire Communications, Inc.
721 596 320 DLA Systems Automation Center
4755 364 316 Videsh Sanchar Nigam Ltd. Aut
1239 941 312 Sprint
17676 342 308 XTAGE CORPORATION
11172 357 303 Servicios Alestra S.A de C.V
4355 388 289 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 /11:15 /12:62
/13:129 /14:303 /15:534 /16:7955 /17:2138 /18:3727
/19:9664 /20:10141 /21:7520 /22:10414 /23:12046 /24:78345
/25:225 /26:193 /27:99 /28:42 /29:18 /30:68
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6347 725 943 SAVVIS Communications Corpora
18566 723 740 Covad Communications
6197 596 778 BellSouth Network Solutions,
7018 532 1392 AT&T WorldNet Services
702 406 650 UUNET - Commercial IP service
1239 367 941 Sprint
701 365 1288 UUNET Technologies, Inc.
9583 364 519 Satyam Infoway Ltd.,
4766 357 549 Korea Internet Exchange for "
5668 336 384 Century Telephone
27364 336 350 Armstrong Cable Services
6198 331 450 BellSouth Network Solutions,
20115 301 568 Charter Communications
9929 288 360 China Netcom Corp.
6467 259 354 E.Spire Communications, Inc.
6517 259 286 Yipes Communications, Inc.
13609 258 301 Choice One Communications Inc
14824 253 277 NewSouth Communications Corp.
3320 248 301 Deutsche Telekom AG
25844 245 245 Skadden, Arps, Slate, Meagher
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:2 12:838 13:1 15:5 16:2
17:3 20:9 24:716 32:66 33:2 38:78
40:54 44:4 55:1 56:3 57:16 60:6
61:454 62:516 63:1851 64:2294 65:2042 66:2450
67:353 68:543 69:689 70:64 80:532 81:361
82:194 83:122 84:17 128:91 129:171 130:86
131:178 132:23 134:186 135:17 136:172 137:51
138:169 139:35 140:159 141:106 142:120 143:59
144:98 145:42 146:289 147:95 148:389 149:109
150:88 151:70 152:162 153:67 154:2 155:129
156:57 157:69 158:139 159:151 160:54 161:75
162:390 163:78 164:179 165:161 166:113 167:219
168:262 169:114 170:280 171:9 192:5575 193:2857
194:2082 195:1449 196:584 198:3656 199:3245 200:3699
201:9 202:4796 203:5641 204:3130 205:2047 206:2274
207:2499 208:2155 209:3033 210:1438 211:576 212:988
213:1198 214:85 215:31 216:3786 217:986 218:181
219:129 220:246 221:31 222:135
End of report
