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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 14 Sep, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170317
Prefixes after maximum aggregation: 97247
Unique aggregates announced to Internet: 82120
Total ASes present in the Internet Routing Table: 20467
Origin-only ASes present in the Internet Routing Table: 17806
Origin ASes announcing only one prefix: 8436
Transit ASes present in the Internet Routing Table: 2661
Transit-only ASes present in the Internet Routing Table: 71
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: 1423271424
Equivalent to 84 /8s, 213 /16s and 102 /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: 80993
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35408
Total APNIC prefixes after maximum aggregation: 15663
Prefixes being announced from the APNIC address blocks: 33271
Unique aggregates announced from the APNIC address blocks: 16409
APNIC Region origin ASes present in the Internet Routing Table: 2353
APNIC Region origin ASes announcing only one prefix: 700
APNIC Region transit ASes present in the Internet Routing Table: 360
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 199186688
Equivalent to 11 /8s, 223 /16s and 89 /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: 90812
Total ARIN prefixes after maximum aggregation: 55171
Prefixes being announced from the ARIN address blocks: 71004
Unique aggregates announced from the ARIN address blocks: 26087
ARIN Region origin ASes present in the Internet Routing Table: 10202
ARIN Region origin ASes announcing only one prefix: 3772
ARIN Region transit ASes present in the Internet Routing Table: 952
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 267751680
Equivalent to 15 /8s, 245 /16s and 145 /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: 32839
Total RIPE prefixes after maximum aggregation: 22399
Prefixes being announced from the RIPE address blocks: 29883
Unique aggregates announced from the RIPE address blocks: 20151
RIPE Region origin ASes present in the Internet Routing Table: 7072
RIPE Region origin ASes announcing only one prefix: 3723
RIPE Region transit ASes present in the Internet Routing Table: 1173
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 217481088
Equivalent to 12 /8s, 246 /16s and 127 /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: 9506
Total LACNIC prefixes after maximum aggregation: 3195
Prefixes being announced from the LACNIC address blocks: 7862
Unique aggregates announced from the LACNIC address blocks: 4573
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: 21991424
Equivalent to 1 /8s, 79 /16s and 144 /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: 1729
Total AfriNIC prefixes after maximum aggregation: 819
Prefixes being announced from the AfriNIC address blocks: 1051
Unique aggregates announced from the AfriNIC address blocks: 792
AfriNIC Region origin ASes present in the Internet Routing Table: 140
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: 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 785 77 14 Sify Limited
1221 748 1328 515 Telstra Pty Ltd
4755 713 259 64 Videsh Sanchar Nigam Ltd. Aut
4766 597 3926 290 Korea Telecom (KIX)
7545 520 108 73 TPG Internet Pty Ltd
17676 467 6771 100 Softbank BB Corp.
9443 386 84 79 Primus Telecommunications
9498 338 147 60 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 298 60 151 Wantree Development
18302 296 109 154 SK Global co., Ltd
9837 278 80 179 Powertel Ltd
17974 273 65 14 PT TELEKOMUNIKASI INDONESIA
703 260 264 212 UUNET - Commercial IP service
9800 249 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1505 6374 981 AT&T WorldNet Services
4323 1169 706 228 Time Warner Telecom
721 1090 21922 312 DLA Systems Automation Center
174 1084 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 861 2851 606 Sprint
18566 844 224 22 Covad Communications
20115 641 503 327 Charter Communications
209 623 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 537 2401 419 Savvis
22773 522 1352 27 Cox Communications, Inc.
5668 495 115 23 CenturyTel Internet Holdings,
6198 473 417 228 BellSouth Network Solutions,
7132 461 4949 395 SBC Internet Services
19262 452 1372 120 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 301 1081 287 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
1257 198 713 176 SWIPnet Swedish IP Network
9121 194 290 41 TTnet Autonomous System
6746 184 50 160 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
3269 174 1574 69 TELECOM ITALIA
5400 169 289 142 BT Ignite European Backbone
8866 167 36 8 Bulgarian Telecommunication C
6830 157 669 33 UPC Distribution Services
3300 155 185 90 AUCS Communications Services
25186 143 145 100 France Telecom Transpac's Tra
8551 139 122 21 Bezeq International
24863 138 37 6 LINKdotNET AS number
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 173 128 7 VTR PUNTO NET S.A.
14117 153 10 5 Telefonica del Sur S.A.
7303 145 69 16 Telecom Argentina Stet-France
11556 129 64 2 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 122 8 15 Internet Egypt Network
8452 106 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
15808 19 2 2 Communication Solutions Ltd i
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1169 941 Time Warner Telecom
18566 844 822 Covad Communications
721 1090 778 DLA Systems Automation Center
9583 785 771 Sify Limited
4134 966 765 CHINANET-BACKBONE
4755 713 649 Videsh Sanchar Nigam Ltd. Aut
27364 554 536 Armstrong Cable Services
22773 522 495 Cox Communications, Inc.
5668 495 472 CenturyTel Internet Holdings,
6197 943 465 BellSouth Network Solutions,
7545 520 447 TPG Internet Pty Ltd
3602 556 446 Sprint Canada, Inc.
17676 467 367 Softbank BB Corp.
6467 398 348 E.Spire Communications, Inc.
19262 452 332 Verizon Global Networks
11492 331 324 Cable One
6140 422 319 ImpSat
20115 641 314 Charter Communications
17488 319 311 Hathway IP Over Cable Interne
15270 335 308 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 /15:626 /16:8522 /17:2734 /18:4673
/19:10750 /20:11831 /21:9838 /22:13205 /23:14061 /24:92488
/25:327 /26:301 /27:173 /28:48 /29:23 /30:60
/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 711 1505 AT&T WorldNet Services
2386 626 915 AT&T Data Communications Serv
9583 608 785 Sify Limited
4323 557 1169 Time Warner Telecom
27364 545 554 Armstrong Cable Services
4766 414 597 Korea Telecom (KIX)
5668 403 495 CenturyTel Internet Holdings,
702 369 593 UUNET - Commercial IP service
7011 368 423 Citizens Utilities
1239 364 861 Sprint
19916 363 369 OLM LLC
6198 346 473 BellSouth Network Solutions,
11492 323 331 Cable One
6517 307 333 Yipes Communications, Inc.
15270 305 335 PaeTec.net -a division of Pae
701 287 1000 UUNET Technologies, Inc.
18302 281 296 SK Global co., Ltd
20115 270 641 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:23 11:1 12:1574 13:1 15:9
16:2 17:3 18:3 20:21 24:1071 30:3
32:61 38:147 40:56 44:4 47:2 52:4
55:1 56:3 57:23 58:156 59:68 60:121
61:726 62:775 63:1895 64:2862 65:2067 66:2908
67:604 68:613 69:1222 70:180 71:17 72:376
80:605 81:557 82:473 83:303 84:244 85:307
86:110 87:10 128:159 129:167 130:94 131:294
132:36 133:1 134:145 135:43 136:151 137:66
138:164 139:61 140:427 141:105 142:145 143:140
144:219 145:34 146:294 147:117 148:302 149:182
150:107 151:69 152:112 153:93 154:5 155:149
156:80 157:112 158:163 159:173 160:85 161:72
162:224 163:117 164:188 165:196 166:155 167:245
168:439 169:142 170:321 171:8 190:1 192:5716
193:3284 194:2407 195:1538 196:671 198:3878 199:3299
200:4176 201:327 202:6091 203:6384 204:3803 205:2074
206:2459 207:2831 208:2034 209:3357 210:1666 211:806
212:1171 213:1362 214:297 215:36 216:3658 217:1129
218:219 219:138 220:463 221:272 222:125
End of report
