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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 27 Sep, 2004
Analysis Summary
----------------
BGP routing table entries examined: 147406
Prefixes after maximum aggregation: 87449
Unique aggregates announced to Internet: 70357
Total ASes present in the Internet Routing Table: 18073
Origin-only ASes present in the Internet Routing Table: 15713
Origin ASes announcing only one prefix: 7327
Transit ASes present in the Internet Routing Table: 2360
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 58
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1340775588
Equivalent to 79 /8s, 234 /16s and 156 /24s
Percentage of available address space announced: 36.2
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 67642
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28436
Total APNIC prefixes after maximum aggregation: 14225
Prefixes being announced from the APNIC address blocks: 26599
Unique aggregates announced from the APNIC address blocks: 14149
APNIC Region origin ASes present in the Internet Routing Table: 2131
APNIC Region origin ASes announcing only one prefix: 632
APNIC Region transit ASes present in the Internet Routing Table: 325
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 163890304
Equivalent to 9 /8s, 196 /16s and 196 /24s
Percentage of available APNIC address space announced: 74.8
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: 83891
Total ARIN prefixes after maximum aggregation: 51145
Prefixes being announced from the ARIN address blocks: 64103
Unique aggregates announced from the ARIN address blocks: 22788
ARIN Region origin ASes present in the Internet Routing Table: 9534
ARIN Region origin ASes announcing only one prefix: 3412
ARIN Region transit ASes present in the Internet Routing Table: 913
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 232904960
Equivalent to 13 /8s, 225 /16s and 217 /24s
Percentage of available ARIN address space announced: 69.4
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: 27387
Total RIPE prefixes after maximum aggregation: 19072
Prefixes being announced from the RIPE address blocks: 24235
Unique aggregates announced from the RIPE address blocks: 15899
RIPE Region origin ASes present in the Internet Routing Table: 5851
RIPE Region origin ASes announcing only one prefix: 3148
RIPE Region transit ASes present in the Internet Routing Table: 1002
Average RIPE Region AS path length visible: 5.3
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 172023104
Equivalent to 10 /8s, 64 /16s and 221 /24s
Percentage of available RIPE address space announced: 60.3
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, 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: 6395
Total LACNIC prefixes after maximum aggregation: 2317
Prefixes being announced from the LACNIC address blocks: 6259
Unique aggregates announced from the LACNIC address blocks: 3658
LACNIC Region origin ASes present in the Internet Routing Table: 393
LACNIC Region origin ASes announcing only one prefix: 115
LACNIC Region transit ASes present in the Internet Routing Table: 78
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16081152
Equivalent to 0 /8s, 245 /16s and 97 /24s
Percentage of available LACNIC address space announced: 47.9
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1289
Total AfriNIC prefixes after maximum aggregation: 687
Prefixes being announced from the AfriNIC address blocks: 884
Unique aggregates announced from the AfriNIC address blocks: 675
AfriNIC Region origin ASes present in the Internet Routing Table: 92
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2064128
Equivalent to 0 /8s, 31 /16s and 127 /24s
Percentage of available AfriNIC address space announced: 12.3
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 838 4385 158 Data Communications Bureau
1221 807 1183 580 Telstra Pty Ltd
4766 544 3408 266 Korea Internet Exchange for "
9583 533 41 102 Satyam Infoway Ltd.,
4755 367 133 48 Videsh Sanchar Nigam Ltd. Aut
17676 365 5452 53 XTAGE CORPORATION
9443 355 70 81 Primus Telecommunications
2907 351 1840 326 SINET Japan
9929 344 161 33 China Netcom Corp.
17557 312 23 154 Pakistan Telecom
703 311 342 240 UUNET
2764 284 274 233 connect.com.au pty ltd
7474 273 269 201 Optus Communications Pty Ltd
9942 242 73 129 COMindico Australia
4802 233 28 142 Wantree Development
9800 229 372 66 CHINA UNICOM
9498 222 49 49 BHARTI BT INTERNET LTD.
7563 209 48 163 Korea Internet Infrastructure
17974 203 62 10 PT TELEKOMUNIKASI INDONESIA
4837 202 2264 106 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1402 6752 980 AT&T WorldNet Services
701 1267 8425 913 UUNET Technologies, Inc.
1239 928 2880 614 Sprint
2386 833 529 596 AT&T Data Communications Serv
4323 790 633 215 Time Warner Telecom
18566 740 208 6 Covad Communications
6197 720 364 349 BellSouth Network Solutions,
721 715 21012 295 DLA Systems Automation Center
209 624 3464 494 Qwest
3356 588 10923 447 Level 3 Communications, LLC
20115 584 423 297 Charter Communications
3561 565 2497 384 Cable & Wireless USA
852 511 1141 397 Telus Advanced Communications
7843 491 681 98 Adelphia Corp.
7132 435 8157 377 SBC Internet Services
705 431 163 272 UUNET Technologies, Inc.
6198 413 396 197 BellSouth Network Solutions,
22773 399 960 18 Cox Communications, Inc. Atla
5668 396 87 18 Century Telephone
27364 394 36 19 Armstrong Cable Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 639 2031 529 UUNET - Commercial IP service
3320 299 2470 236 Deutsche Telekom AG
8220 281 460 268 COLT Internet - International
3301 279 1100 269 TeliaNet Sweden
21502 268 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 217 475 214 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 744 178 SWIPnet Swedish IP Network
8708 205 113 183 Romania Data Systems S.A.
5515 198 842 144 Sonera Solution Autonomous Sy
3215 184 876 77 France Telecom Transpac
786 177 1794 177 The JANET IP Service
719 157 288 102 LANLINK autonomous system
6746 151 29 128 Dynamic Network Technologies,
25186 149 154 106 France Telecom Transpac's Tra
3303 148 610 130 Swisscom Ltd
5400 148 206 120 BT Ignite European Backbone
8866 146 17 24 Bulgarian Telecommunication C
3269 145 1195 66 TELECOM ITALIA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 367 138 68 ImpSat
8151 300 422 134 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
6147 191 86 19 Telefonica Del Peru
11172 188 99 51 Servicios Alestra S.A de C.V
11664 169 12 32 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
6503 127 164 86 AVANTEL, S.A.
7303 127 57 21 Telecom Argentina Stet-France
11992 90 9 31 Integrated Systems
14420 86 7 37 ANDINATEL S.A.
6535 85 7 19 Chilesat Servicios Empresari
10620 85 10 4 TVCABLE BOGOTA
11311 83 8 22 Sinectis S.A.
10481 81 32 7 Prima S.A.
11556 81 41 3 Cable-Wireless Panama
5639 77 8 8 Telecommunications Services o
15311 76 21 36 Telefonica Empresas
27716 74 9 12 Eveloz
10292 71 6 27 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 114 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 92 276 81 The Internetworking Company o
20928 59 16 1 Noor Advanced Technologies AS
22750 50 3 2 >>UNKNOWN<<
14988 45 16 1 Botswana Telecommunications C
24835 34 34 7 RAYA Telecom - Egypt
6713 31 42 10 Itissalat Al-MAGHRIB
9129 29 3 4 UUNET Kenya
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 24 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
21491 16 1 3 UTL On-line is RF broadband I
15706 15 4 2 Sudatel Internet Exchange Aut
8346 14 6 13 SONATEL-AS Autonomous System
21280 14 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 740 734 Covad Communications
4134 838 680 Data Communications Bureau
4323 790 575 Time Warner Telecom
9583 533 431 Satyam Infoway Ltd.,
721 715 420 DLA Systems Automation Center
7843 491 393 Adelphia Corp.
22773 399 381 Cox Communications, Inc. Atla
5668 396 378 Century Telephone
27364 394 375 Armstrong Cable Services
6197 720 371 BellSouth Network Solutions,
6467 386 356 E.Spire Communications, Inc.
701 1267 354 UUNET Technologies, Inc.
22909 376 338 Comcast Cable Corporation
4755 367 319 Videsh Sanchar Nigam Ltd. Aut
1239 928 314 Sprint
17676 365 312 XTAGE CORPORATION
9929 344 311 China Netcom Corp.
6140 367 299 ImpSat
6478 365 294 AT&T Worldnet Services
4355 391 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 62.241.160.0/19 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.86.0.0/16 25346 Pipex Internet UK IS
23456 UNALLOCATED 81.178.0.0/15 25346 Pipex Internet UK IS
64513 PRIVATE 164.78.128.0/17 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.249.0/24 7610 SINGAPORE ADVANCE RE
64513 PRIVATE 164.78.252.0/24 7610 SINGAPORE ADVANCE RE
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
22750 UNALLOCATED 196.44.64.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.64.0/19 2905 The Internetworking
22750 UNALLOCATED 196.44.65.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.66.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.67.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.68.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.69.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.70.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.71.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.72.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.73.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.74.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.75.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.76.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.77.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.78.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.79.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.80.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.81.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.82.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.83.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.84.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.85.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.86.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.87.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.88.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.89.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.90.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.91.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.92.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.93.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.94.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.95.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.224.0/20 2905 The Internetworking
22750 UNALLOCATED 196.44.225.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.226.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.227.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.228.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.229.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.230.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.231.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.232.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.233.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.234.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.235.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.236.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.237.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.238.0/24 2905 The Internetworking
22750 UNALLOCATED 196.44.239.0/24 2905 The Internetworking
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
111.0.0.0/24 7563 Korea Internet Infrastructure
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
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
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 /12:63
/13:134 /14:307 /15:540 /16:8062 /17:2227 /18:3860
/19:9816 /20:10326 /21:7788 /22:10756 /23:12361 /24:80310
/25:239 /26:208 /27:108 /28:58 /29:43 /30:107
/31:0 /32:50
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 725 740 Covad Communications
2386 600 833 AT&T Data Communications Serv
6197 571 720 BellSouth Network Solutions,
7018 548 1402 AT&T WorldNet Services
702 390 639 UUNET - Commercial IP service
27364 378 394 Armstrong Cable Services
9583 371 533 Satyam Infoway Ltd.,
1239 367 928 Sprint
4766 363 544 Korea Internet Exchange for "
701 356 1267 UUNET Technologies, Inc.
5668 346 396 Century Telephone
6198 301 413 BellSouth Network Solutions,
20115 297 584 Charter Communications
6467 286 386 E.Spire Communications, Inc.
9929 275 344 China Netcom Corp.
6517 265 292 Yipes Communications, Inc.
13609 265 308 Choice One Communications Inc
21502 265 268 NUMERICABLE is a cabled netwo
3320 245 299 Deutsche Telekom AG
4323 245 790 Time Warner Telecom
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:3 12:1386 13:1 15:5 16:2
17:3 18:1 20:6 24:723 32:66 33:2
38:78 40:54 44:3 47:2 52:3 55:1
56:3 57:17 60:6 61:519 62:507 63:1831
64:2369 65:2045 66:2477 67:386 68:542 69:716
70:72 80:517 81:549 82:307 83:158 84:26
111:1 128:120 129:171 130:87 131:188 132:27
134:187 135:17 136:182 137:55 138:179 139:35
140:179 141:107 142:120 143:66 144:158 145:42
146:293 147:92 148:387 149:107 150:82 151:65
152:152 153:68 154:2 155:127 156:58 157:71
158:141 159:162 160:56 161:71 162:373 163:80
164:214 165:161 166:117 167:223 168:345 169:117
170:270 171:9 192:5569 193:2906 194:2118 195:1482
196:642 198:3667 199:3261 200:3793 201:20 202:4836
203:5693 204:3233 205:2093 206:2311 207:2578 208:2123
209:2967 210:1488 211:623 212:1092 213:1203 214:133
215:31 216:3668 217:1011 218:176 219:101 220:257
221:37 222:44
End of report
