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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 15 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170276
Prefixes after maximum aggregation: 97277
Unique aggregates announced to Internet: 82155
Total ASes present in the Internet Routing Table: 20489
Origin-only ASes present in the Internet Routing Table: 17825
Origin ASes announcing only one prefix: 8438
Transit ASes present in the Internet Routing Table: 2664
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 20
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1423386944
Equivalent to 84 /8s, 215 /16s and 41 /24s
Percentage of available address space announced: 38.4
Percentage of allocated address space announced: 57.8
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 80949
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35410
Total APNIC prefixes after maximum aggregation: 15667
Prefixes being announced from the APNIC address blocks: 33267
Unique aggregates announced from the APNIC address blocks: 16378
APNIC Region origin ASes present in the Internet Routing Table: 2358
APNIC Region origin ASes announcing only one prefix: 699
APNIC Region transit ASes present in the Internet Routing Table: 357
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 199195136
Equivalent to 11 /8s, 223 /16s and 122 /24s
Percentage of available APNIC address space announced: 73.9
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: 90744
Total ARIN prefixes after maximum aggregation: 55190
Prefixes being announced from the ARIN address blocks: 71043
Unique aggregates announced from the ARIN address blocks: 26110
ARIN Region origin ASes present in the Internet Routing Table: 10208
ARIN Region origin ASes announcing only one prefix: 3769
ARIN Region transit ASes present in the Internet Routing Table: 956
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 267810624
Equivalent to 15 /8s, 246 /16s and 119 /24s
Percentage of available ARIN address space announced: 66.5
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: 32852
Total RIPE prefixes after maximum aggregation: 22406
Prefixes being announced from the RIPE address blocks: 29902
Unique aggregates announced from the RIPE address blocks: 20169
RIPE Region origin ASes present in the Internet Routing Table: 7085
RIPE Region origin ASes announcing only one prefix: 3730
RIPE Region transit ASes present in the Internet Routing Table: 1178
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 217580416
Equivalent to 12 /8s, 248 /16s and 3 /24s
Percentage of available RIPE address space announced: 64.8
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: 9519
Total LACNIC prefixes after maximum aggregation: 3200
Prefixes being announced from the LACNIC address blocks: 7873
Unique aggregates announced from the LACNIC address blocks: 4582
LACNIC Region origin ASes present in the Internet Routing Table: 636
LACNIC Region origin ASes announcing only one prefix: 198
LACNIC Region transit ASes present in the Internet Routing Table: 120
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 21992192
Equivalent to 1 /8s, 79 /16s and 147 /24s
Percentage of available LACNIC address space announced: 32.8
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: 1728
Total AfriNIC prefixes after maximum aggregation: 814
Prefixes being announced from the AfriNIC address blocks: 1047
Unique aggregates announced from the AfriNIC address blocks: 798
AfriNIC Region origin ASes present in the Internet Routing Table: 139
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 17
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2660352
Equivalent to 0 /8s, 40 /16s and 152 /24s
Percentage of available AfriNIC address space announced: 7.9
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 966 5948 201 CHINANET-BACKBONE
9583 787 77 14 Sify Limited
1221 746 1328 515 Telstra Pty Ltd
4755 714 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 604 3927 287 Korea Telecom (KIX)
7545 516 108 73 TPG Internet Pty Ltd
17676 467 6771 100 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
9498 340 147 62 BHARTI BT INTERNET LTD.
2907 337 1789 314 SINET Japan
9929 335 224 46 China Netcom Corp.
17557 329 23 156 Pakistan Telecom
17488 319 19 8 Hathway IP Over Cable Interne
7474 315 257 218 SingTel Optus Pty Ltd
4802 301 60 152 Wantree Development
18302 296 109 154 SK Global co., Ltd
9837 277 79 178 Powertel Ltd
17974 274 65 14 PT TELEKOMUNIKASI INDONESIA
703 256 263 208 UUNET - Commercial IP service
9800 250 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1502 6374 978 AT&T WorldNet Services
4323 1172 706 228 Time Warner Telecom
721 1088 21922 312 DLA Systems Automation Center
174 1083 5852 1016 Cogent Communications
701 1000 8120 843 UUNET Technologies, Inc.
6197 943 389 478 BellSouth Network Solutions,
2386 915 515 677 AT&T Data Communications Serv
1239 863 2851 609 Sprint
18566 844 224 22 Covad Communications
20115 647 509 327 Charter Communications
209 626 3441 492 Qwest
3356 575 10661 445 Level 3 Communications, LLC
3602 556 131 110 Sprint Canada, Inc.
27364 554 44 18 Armstrong Cable Services
3561 540 2409 420 Savvis
22773 528 1352 27 Cox Communications, Inc.
5668 495 115 23 CenturyTel Internet Holdings,
6198 472 417 228 BellSouth Network Solutions,
7132 461 4949 395 SBC Internet Services
19262 453 1374 121 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 593 1994 480 UUNET - Commercial IP service
3301 300 1081 286 TeliaNet Sweden
3320 291 3230 241 Deutsche Telekom AG
8220 264 474 259 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 236 262 216 Romania Data Systems S.A.
3246 229 476 222 Song Networks
9121 198 291 41 TTnet Autonomous System
1257 195 712 173 SWIPnet Swedish IP Network
6746 184 50 160 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
3269 173 1558 68 TELECOM ITALIA
5400 169 289 142 BT Ignite European Backbone
8866 165 36 8 Bulgarian Telecommunication C
3300 157 185 92 AUCS Communications Services
6830 157 669 33 UPC Distribution Services
25186 142 145 99 France Telecom Transpac's Tra
24863 138 37 6 LINKdotNET AS number
2856 136 2318 119 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 397 650 168 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 248 83 60 Servicios Alestra S.A de C.V
6147 191 118 21 Telefonica Del Peru
11664 191 20 23 Keytech SA
19632 183 14 5 Metropolis Intercom S.A.
22047 172 128 7 VTR PUNTO NET S.A.
14117 153 10 5 Telefonica del Sur S.A.
7303 145 69 16 Telecom Argentina Stet-France
11556 131 64 3 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
10481 120 48 8 Prima S.A.
19169 120 8 28 Telconet
13999 116 52 9 Mega Cable S.A. de C.V.
6503 114 148 75 AVANTEL, S.A.
18822 111 7 15 TELEFONICA MANQUEHUE
21826 104 13 15 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 97 8 14 Sinectis S.A.
23216 96 24 19 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 265 708 222 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 107 32 7 TEDATA
2018 96 295 87 Tertiary Education Network
15475 92 84 4 Nile Online
2905 77 210 69 The Internetworking Company o
20928 58 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 30 4 20 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
21280 22 4 5 Swift Global Kenya Ltd.Is an
10798 21 1 12 Standard Bank of South Africa
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 1172 944 Time Warner Telecom
18566 844 822 Covad Communications
721 1088 776 DLA Systems Automation Center
9583 787 773 Sify Limited
4134 966 765 CHINANET-BACKBONE
4755 714 650 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 528 501 Cox Communications, Inc.
5668 495 472 CenturyTel Internet Holdings,
6197 943 465 BellSouth Network Solutions,
3602 556 446 Sprint Canada, Inc.
7545 516 443 TPG Internet Pty Ltd
17676 467 367 Softbank BB Corp.
6467 399 349 E.Spire Communications, Inc.
19262 453 332 Verizon Global Networks
11492 331 324 Cable One
20115 647 320 Charter Communications
4766 604 317 Korea Telecom (KIX)
17488 319 311 Hathway IP Over Cable Interne
15270 337 310 PaeTec.net -a division of Pae
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
65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel
65205 PRIVATE 152.163.5.0/24 2056 America Online
65111 PRIVATE 194.165.131.0/24 8697 Jordan Telecommunica
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
28605 UNALLOCATED 201.20.144.0/20 4230 Embratel
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
65500 PRIVATE 211.158.36.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.40.0/22 23851 Chongqing Broadband
65500 PRIVATE 211.158.44.0/22 23851 Chongqing Broadband
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
/13:175 /14:323 /15:627 /16:8521 /17:2733 /18:4679
/19:10755 /20:11842 /21:9850 /22:13225 /23:14082 /24:92371
/25:329 /26:301 /27:173 /28:48 /29:22 /30:61
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 829 844 Covad Communications
6197 772 943 BellSouth Network Solutions,
7018 712 1502 AT&T WorldNet Services
2386 626 915 AT&T Data Communications Serv
9583 610 787 Sify Limited
4323 561 1172 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 421 604 Korea Telecom (KIX)
5668 403 495 CenturyTel Internet Holdings,
702 369 593 UUNET - Commercial IP service
7011 368 423 Citizens Utilities
1239 365 863 Sprint
19916 363 369 OLM LLC
6198 345 472 BellSouth Network Solutions,
11492 323 331 Cable One
6517 309 335 Yipes Communications, Inc.
15270 307 337 PaeTec.net -a division of Pae
701 287 1000 UUNET Technologies, Inc.
18302 281 296 SK Global co., Ltd
20115 270 647 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:23 11:1 12:1575 13:1 15:9
16:2 17:3 18:3 20:21 24:1071 30:3
32:61 38:149 40:56 44:4 47:2 52:4
55:1 56:3 57:23 58:156 59:69 60:121
61:725 62:758 63:1893 64:2868 65:2071 66:2906
67:609 68:614 69:1222 70:182 71:17 72:378
80:601 81:561 82:468 83:303 84:242 85:310
86:109 87:13 125:1 128:162 129:167 130:94
131:292 132:36 133:1 134:144 135:43 136:58
137:66 138:164 139:61 140:427 141:105 142:145
143:141 144:217 145:34 146:295 147:118 148:302
149:182 150:107 151:69 152:112 153:93 154:5
155:149 156:80 157:111 158:164 159:171 160:85
161:72 162:224 163:117 164:188 165:187 166:154
167:245 168:439 169:142 170:321 171:8 190:1
192:5717 193:3288 194:2403 195:1549 196:668 198:3881
199:3294 200:4182 201:329 202:6066 203:6383 204:3791
205:2074 206:2453 207:2830 208:2034 209:3359 210:1667
211:807 212:1180 213:1356 214:297 215:36 216:3662
217:1131 218:220 219:138 220:463 221:274 222:125
End of report
