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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 30 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 171037
Prefixes after maximum aggregation: 97566
Unique aggregates announced to Internet: 82550
Total ASes present in the Internet Routing Table: 20611
Origin-only ASes present in the Internet Routing Table: 17919
Origin ASes announcing only one prefix: 8510
Transit ASes present in the Internet Routing Table: 2692
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 28
Prefixes from unregistered ASNs in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1427106816
Equivalent to 85 /8s, 15 /16s and 236 /24s
Percentage of available address space announced: 38.5
Percentage of allocated address space announced: 58.0
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81428
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35594
Total APNIC prefixes after maximum aggregation: 15664
Prefixes being announced from the APNIC address blocks: 33439
Unique aggregates announced from the APNIC address blocks: 16485
APNIC Region origin ASes present in the Internet Routing Table: 2373
APNIC Region origin ASes announcing only one prefix: 700
APNIC Region transit ASes present in the Internet Routing Table: 363
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 200552448
Equivalent to 11 /8s, 244 /16s and 48 /24s
Percentage of available APNIC address space announced: 74.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 90926
Total ARIN prefixes after maximum aggregation: 55342
Prefixes being announced from the ARIN address blocks: 70997
Unique aggregates announced from the ARIN address blocks: 26320
ARIN Region origin ASes present in the Internet Routing Table: 10240
ARIN Region origin ASes announcing only one prefix: 3783
ARIN Region transit ASes present in the Internet Routing Table: 958
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 270737152
Equivalent to 16 /8s, 35 /16s and 31 /24s
Percentage of available ARIN address space announced: 67.2
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 33150
Total RIPE prefixes after maximum aggregation: 22528
Prefixes being announced from the RIPE address blocks: 30194
Unique aggregates announced from the RIPE address blocks: 20178
RIPE Region origin ASes present in the Internet Routing Table: 7155
RIPE Region origin ASes announcing only one prefix: 3784
RIPE Region transit ASes present in the Internet Routing Table: 1191
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 218822976
Equivalent to 13 /8s, 10 /16s and 249 /24s
Percentage of available RIPE address space announced: 65.2
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 9606
Total LACNIC prefixes after maximum aggregation: 3217
Prefixes being announced from the LACNIC address blocks: 7947
Unique aggregates announced from the LACNIC address blocks: 4636
LACNIC Region origin ASes present in the Internet Routing Table: 638
LACNIC Region origin ASes announcing only one prefix: 200
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22060544
Equivalent to 1 /8s, 80 /16s and 158 /24s
Percentage of available LACNIC address space announced: 32.9
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1738
Total AfriNIC prefixes after maximum aggregation: 815
Prefixes being announced from the AfriNIC address blocks: 1057
Unique aggregates announced from the AfriNIC address blocks: 804
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 20
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 2734336
Equivalent to 0 /8s, 41 /16s and 185 /24s
Percentage of available AfriNIC address space announced: 8.1
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 987 6103 205 CHINANET-BACKBONE
9583 796 77 12 Sify Limited
1221 755 1330 519 Telstra Pty Ltd
4755 722 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 609 3927 289 Korea Telecom (KIX)
7545 509 108 72 TPG Internet Pty Ltd
17676 469 6803 99 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 338 148 59 BHARTI BT INTERNET LTD.
2907 336 1757 313 SINET Japan
17488 335 20 9 Hathway IP Over Cable Interne
9929 330 224 46 China Netcom Corp.
17557 327 23 160 Pakistan Telecom
7474 312 257 215 SingTel Optus Pty Ltd
17974 301 82 14 PT TELEKOMUNIKASI INDONESIA
4802 299 66 158 Wantree Development
18302 293 109 160 SK Global co., Ltd
9837 273 79 174 Powertel Ltd
18101 254 68 18 Reliance Infocom Ltd Internet
703 253 263 206 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1507 6360 986 AT&T WorldNet Services
4323 1178 705 228 Time Warner Telecom
721 1073 21922 308 DLA Systems Automation Center
174 1070 5850 1003 Cogent Communications
701 992 8120 835 UUNET Technologies, Inc.
6197 948 399 483 BellSouth Network Solutions,
2386 921 513 683 AT&T Data Communications Serv
1239 861 2851 605 Sprint
18566 857 240 7 Covad Communications
20115 648 506 326 Charter Communications
209 633 3585 498 Qwest
3356 570 10659 441 Level 3 Communications, LLC
3602 555 131 107 Sprint Canada, Inc.
22773 542 1352 30 Cox Communications, Inc.
3561 538 2409 418 Savvis
5668 490 115 23 CenturyTel Internet Holdings,
6198 474 417 228 BellSouth Network Solutions,
7132 466 4950 398 SBC Internet Services
19262 464 1402 118 Verizon Global Networks
852 437 1092 384 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 609 1993 481 UUNET - Commercial IP service
3301 301 1081 287 TeliaNet Sweden
3320 285 3230 238 Deutsche Telekom AG
8220 267 475 262 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 239 262 218 Romania Data Systems S.A.
9121 230 336 26 TTnet Autonomous System
3246 227 476 220 Song Networks
1257 194 712 172 SWIPnet Swedish IP Network
6746 186 50 161 Dynamic Network Technologies,
5515 185 778 127 Sonera Solution Autonomous Sy
3269 176 1606 69 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 169 289 142 BT Ignite European Backbone
8866 163 37 9 Bulgarian Telecommunication C
6830 158 669 33 UPC Distribution Services
3300 156 185 91 AUCS Communications Services
25186 144 145 101 France Telecom Transpac's Tra
3215 140 1205 82 France Telecom Transpac
24863 138 37 6 LINKdotNET AS number
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 401 650 171 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 272 85 63 Servicios Alestra S.A de C.V
11664 204 22 24 Keytech SA
6147 190 116 23 Telefonica Del Peru
19632 183 14 5 Metropolis Intercom S.A.
22047 171 128 7 VTR PUNTO NET S.A.
14117 155 10 5 Telefonica del Sur S.A.
7303 147 70 15 Telecom Argentina Stet-France
11556 132 64 2 Cable-Wireless Panama
19169 132 8 30 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
13999 116 52 9 Mega Cable S.A. de C.V.
6503 113 148 74 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
21826 105 13 16 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 95 23 18 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 708 223 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 108 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 84 84 4 Nile Online
2905 79 211 71 The Internetworking Company o
20928 61 16 2 Noor Advanced Technologies AS
24835 58 34 7 RAYA Telecom - Egypt
6713 51 54 8 Itissalat Al-MAGHRIB
5713 38 149 33 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 3 19 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 23 10 20 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 20 4 4 Swift Global Kenya Ltd.Is an
23889 20 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1178 950 Time Warner Telecom
18566 857 850 Covad Communications
9583 796 784 Sify Limited
4134 987 782 CHINANET-BACKBONE
721 1073 765 DLA Systems Automation Center
4755 722 656 Videsh Sanchar Nigam Ltd. Aut
22773 542 512 Cox Communications, Inc.
5668 490 467 CenturyTel Internet Holdings,
6197 948 465 BellSouth Network Solutions,
3602 555 448 Sprint Canada, Inc.
7545 509 437 TPG Internet Pty Ltd
17676 469 370 Softbank BB Corp.
19262 464 346 Verizon Global Networks
6467 393 344 E.Spire Communications, Inc.
11492 339 330 Cable One
17488 335 326 Hathway IP Over Cable Interne
20115 648 322 Charter Communications
4766 609 320 Korea Telecom (KIX)
15270 343 315 PaeTec.net -a division of Pae
9443 392 314 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64826 PRIVATE 64.200.255.0/24 7911 Williams Communicati
65205 PRIVATE 152.163.5.0/24 2056 America Online
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
65430 PRIVATE 196.44.128.0/19 20459 Telecom Namibia
65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma
65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
65500 PRIVATE 216.216.217.0/24 19029 New Edge Networks
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 7575 Australian Academic and Rease
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
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
192.172.0.0/19 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:5 /10:8 /11:17 /12:80
/13:178 /14:326 /15:631 /16:8530 /17:2812 /18:4713
/19:10802 /20:11853 /21:9909 /22:13285 /23:14201 /24:92703
/25:330 /26:295 /27:188 /28:45 /29:14 /30:61
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 841 857 Covad Communications
6197 775 948 BellSouth Network Solutions,
7018 725 1507 AT&T WorldNet Services
2386 633 921 AT&T Data Communications Serv
9583 621 796 Sify Limited
4323 562 1178 Time Warner Telecom
4766 425 609 Korea Telecom (KIX)
5668 398 490 CenturyTel Internet Holdings,
702 385 609 UUNET - Commercial IP service
1239 367 861 Sprint
7011 364 423 Citizens Utilities
19916 363 369 OLM LLC
6198 347 474 BellSouth Network Solutions,
11492 331 339 Cable One
6517 313 340 Yipes Communications, Inc.
15270 313 343 PaeTec.net -a division of Pae
13609 290 332 Choice One Communications Inc
701 284 992 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
20115 275 648 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:24 12:1597 13:1 15:10 16:2
17:3 18:3 20:27 24:563 30:3 32:66
38:156 40:54 44:3 47:2 52:4 55:1
56:3 57:23 58:157 59:69 60:140 61:766
62:763 63:1884 64:2884 65:2077 66:2968 67:634
68:652 69:1232 70:197 71:26 72:392 80:626
81:544 82:472 83:305 84:255 85:335 86:123
87:20 125:9 128:151 129:167 130:96 131:295
132:36 133:1 134:146 135:43 136:151 137:66
138:163 139:63 140:454 141:137 142:150 143:141
144:212 145:34 146:299 147:112 148:303 149:184
150:108 151:72 152:113 153:93 154:5 155:137
156:80 157:111 158:164 159:170 160:85 161:75
162:235 163:133 164:191 165:188 166:152 167:251
168:442 169:143 170:309 171:8 190:1 192:5713
193:3312 194:2410 195:1554 196:672 198:3879 199:3236
200:4195 201:342 202:6106 203:6429 204:3809 205:2046
206:2448 207:2834 208:2041 209:3406 210:1663 211:812
212:1205 213:1374 214:303 215:42 216:3725 217:1137
218:220 219:132 220:493 221:286 222:129
End of report
