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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 28 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 171186
Prefixes after maximum aggregation: 97481
Unique aggregates announced to Internet: 82440
Total ASes present in the Internet Routing Table: 20594
Origin-only ASes present in the Internet Routing Table: 17911
Origin ASes announcing only one prefix: 8486
Transit ASes present in the Internet Routing Table: 2683
Transit-only ASes present in the Internet Routing Table: 74
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: 1426192000
Equivalent to 85 /8s, 1 /16s and 246 /24s
Percentage of available address space announced: 38.5
Percentage of allocated address space announced: 57.9
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81658
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35586
Total APNIC prefixes after maximum aggregation: 15651
Prefixes being announced from the APNIC address blocks: 33423
Unique aggregates announced from the APNIC address blocks: 16487
APNIC Region origin ASes present in the Internet Routing Table: 2373
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 367
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 200359680
Equivalent to 11 /8s, 241 /16s and 63 /24s
Percentage of available APNIC address space announced: 74.3
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: 91270
Total ARIN prefixes after maximum aggregation: 55306
Prefixes being announced from the ARIN address blocks: 71352
Unique aggregates announced from the ARIN address blocks: 26305
ARIN Region origin ASes present in the Internet Routing Table: 10234
ARIN Region origin ASes announcing only one prefix: 3777
ARIN Region transit ASes present in the Internet Routing Table: 950
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 270162944
Equivalent to 16 /8s, 26 /16s and 92 /24s
Percentage of available ARIN address space announced: 67.1
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: 33003
Total RIPE prefixes after maximum aggregation: 22494
Prefixes being announced from the RIPE address blocks: 30054
Unique aggregates announced from the RIPE address blocks: 20103
RIPE Region origin ASes present in the Internet Routing Table: 7143
RIPE Region origin ASes announcing only one prefix: 3772
RIPE Region transit ASes present in the Internet Routing Table: 1188
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 218689216
Equivalent to 13 /8s, 8 /16s and 238 /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: 9559
Total LACNIC prefixes after maximum aggregation: 3213
Prefixes being announced from the LACNIC address blocks: 7897
Unique aggregates announced from the LACNIC address blocks: 4605
LACNIC Region origin ASes present in the Internet Routing Table: 637
LACNIC Region origin ASes announcing only one prefix: 198
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: 22093824
Equivalent to 1 /8s, 81 /16s and 32 /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: 1745
Total AfriNIC prefixes after maximum aggregation: 817
Prefixes being announced from the AfriNIC address blocks: 1065
Unique aggregates announced from the AfriNIC address blocks: 805
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: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2734592
Equivalent to 0 /8s, 41 /16s and 186 /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 984 6080 203 CHINANET-BACKBONE
9583 796 77 12 Sify Limited
1221 751 1330 517 Telstra Pty Ltd
4755 722 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 611 3927 289 Korea Telecom (KIX)
7545 510 108 72 TPG Internet Pty Ltd
17676 469 6803 99 Softbank BB Corp.
9443 386 84 77 Primus Telecommunications
2907 336 1757 313 SINET Japan
17488 336 20 9 Hathway IP Over Cable Interne
9498 333 146 57 BHARTI BT INTERNET LTD.
9929 330 224 46 China Netcom Corp.
17557 328 23 158 Pakistan Telecom
7474 312 257 215 SingTel Optus Pty Ltd
17974 300 66 13 PT TELEKOMUNIKASI INDONESIA
18302 293 109 155 SK Global co., Ltd
4802 289 66 155 Wantree Development
9837 273 79 174 Powertel Ltd
703 254 263 207 UUNET - Commercial IP service
9800 253 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6344 982 AT&T WorldNet Services
4323 1175 705 228 Time Warner Telecom
721 1089 21922 308 DLA Systems Automation Center
174 1073 5850 1005 Cogent Communications
701 990 8120 833 UUNET Technologies, Inc.
6197 946 399 481 BellSouth Network Solutions,
2386 921 513 683 AT&T Data Communications Serv
1239 862 2851 606 Sprint
18566 854 240 7 Covad Communications
20115 652 509 327 Charter Communications
209 632 3585 497 Qwest
3356 576 10659 443 Level 3 Communications, LLC
3602 559 132 112 Sprint Canada, Inc.
27364 558 44 18 Armstrong Cable Services
22773 543 1352 29 Cox Communications, Inc.
3561 538 2409 418 Savvis
5668 490 115 23 CenturyTel Internet Holdings,
6198 473 417 228 BellSouth Network Solutions,
7132 466 4950 398 SBC Internet Services
19262 463 1400 119 Verizon Global Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 609 1995 481 UUNET - Commercial IP service
3301 294 1080 280 TeliaNet Sweden
3320 287 3230 238 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 238 262 217 Romania Data Systems S.A.
3246 229 476 222 Song Networks
9121 228 336 26 TTnet Autonomous System
1257 195 712 173 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 165 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 138 1189 80 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 400 650 170 UniNet S.A. de C.V.
16814 298 18 7 NSS, S.A.
11172 249 83 61 Servicios Alestra S.A de C.V
11664 204 22 24 Keytech SA
6147 191 118 21 Telefonica Del Peru
19632 183 14 5 Metropolis Intercom S.A.
22047 171 128 7 VTR PUNTO NET S.A.
14117 156 10 5 Telefonica del Sur S.A.
7303 148 70 13 Telecom Argentina Stet-France
11556 132 64 2 Cable-Wireless Panama
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
19169 121 8 25 Telconet
13999 118 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 97 8 14 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 30 4 20 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
23889 20 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
21280 17 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1175 947 Time Warner Telecom
18566 854 847 Covad Communications
9583 796 784 Sify Limited
721 1089 781 DLA Systems Automation Center
4134 984 781 CHINANET-BACKBONE
4755 722 656 Videsh Sanchar Nigam Ltd. Aut
27364 558 540 Armstrong Cable Services
22773 543 514 Cox Communications, Inc.
5668 490 467 CenturyTel Internet Holdings,
6197 946 465 BellSouth Network Solutions,
3602 559 447 Sprint Canada, Inc.
7545 510 438 TPG Internet Pty Ltd
17676 469 370 Softbank BB Corp.
19262 463 344 Verizon Global Networks
6467 393 344 E.Spire Communications, Inc.
11492 338 330 Cable One
17488 336 327 Hathway IP Over Cable Interne
20115 652 325 Charter Communications
4766 611 322 Korea Telecom (KIX)
15270 343 315 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
64826 PRIVATE 64.200.255.0/24 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 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
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 /12:81
/13:177 /14:322 /15:631 /16:8522 /17:2808 /18:4712
/19:10803 /20:11857 /21:9897 /22:13270 /23:14185 /24:92902
/25:332 /26:296 /27:191 /28:45 /29:14 /30:60
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 838 854 Covad Communications
6197 773 946 BellSouth Network Solutions,
7018 717 1500 AT&T WorldNet Services
2386 632 921 AT&T Data Communications Serv
9583 621 796 Sify Limited
4323 561 1175 Time Warner Telecom
27364 549 558 Armstrong Cable Services
4766 427 611 Korea Telecom (KIX)
5668 398 490 CenturyTel Internet Holdings,
702 384 609 UUNET - Commercial IP service
1239 367 862 Sprint
7011 364 422 Citizens Utilities
19916 363 369 OLM LLC
6198 346 473 BellSouth Network Solutions,
11492 330 338 Cable One
15270 313 343 PaeTec.net -a division of Pae
6517 312 338 Yipes Communications, Inc.
701 284 990 UUNET Technologies, Inc.
18302 278 293 SK Global co., Ltd
20115 276 652 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 8:24 12:1596 13:1 15:10 16:2
17:3 18:3 20:27 24:1084 30:3 32:65
38:157 40:54 44:3 47:2 52:4 55:1
56:3 57:23 58:157 59:69 60:140 61:760
62:760 63:1889 64:2868 65:2073 66:2930 67:632
68:624 69:1226 70:192 71:18 72:390 80:628
81:545 82:442 83:308 84:250 85:327 86:120
87:17 125:9 128:152 129:167 130:96 131:296
132:36 133:1 134:145 135:43 136:150 137:66
138:164 139:62 140:430 141:137 142:150 143:141
144:218 145:34 146:298 147:112 148:303 149:184
150:109 151:72 152:113 153:93 154:5 155:140
156:80 157:112 158:164 159:171 160:85 161:75
162:233 163:133 164:191 165:188 166:152 167:251
168:439 169:142 170:315 171:8 190:1 192:5710
193:3308 194:2416 195:1557 196:681 198:3872 199:3235
200:4165 201:333 202:6098 203:6426 204:3812 205:2044
206:2450 207:2807 208:2039 209:3397 210:1664 211:812
212:1189 213:1332 214:301 215:39 216:3722 217:1133
218:221 219:134 220:492 221:283 222:129
End of report
