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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 06 Oct, 2005
Analysis Summary
----------------
BGP routing table entries examined: 170998
Prefixes after maximum aggregation: 97599
Unique aggregates announced to Internet: 82851
Total ASes present in the Internet Routing Table: 20622
Origin-only ASes present in the Internet Routing Table: 17926
Origin ASes announcing only one prefix: 8503
Transit ASes present in the Internet Routing Table: 2696
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Prefixes from unregistered ASNs in the Routing Table: 21
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1446117504
Equivalent to 86 /8s, 50 /16s and 0 /24s
Percentage of available address space announced: 39.0
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 81410
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 35446
Total APNIC prefixes after maximum aggregation: 15679
Prefixes being announced from the APNIC address blocks: 33313
Unique aggregates announced from the APNIC address blocks: 16590
APNIC Region origin ASes present in the Internet Routing Table: 2378
APNIC Region origin ASes announcing only one prefix: 697
APNIC Region transit ASes present in the Internet Routing Table: 363
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 201932160
Equivalent to 12 /8s, 9 /16s and 61 /24s
Percentage of available APNIC address space announced: 74.9
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: 90971
Total ARIN prefixes after maximum aggregation: 55328
Prefixes being announced from the ARIN address blocks: 71068
Unique aggregates announced from the ARIN address blocks: 26359
ARIN Region origin ASes present in the Internet Routing Table: 10238
ARIN Region origin ASes announcing only one prefix: 3780
ARIN Region transit ASes present in the Internet Routing Table: 962
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 271032576
Equivalent to 16 /8s, 39 /16s and 161 /24s
Percentage of available ARIN address space announced: 67.3
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: 33193
Total RIPE prefixes after maximum aggregation: 22563
Prefixes being announced from the RIPE address blocks: 30199
Unique aggregates announced from the RIPE address blocks: 20300
RIPE Region origin ASes present in the Internet Routing Table: 7162
RIPE Region origin ASes announcing only one prefix: 3781
RIPE Region transit ASes present in the Internet Routing Table: 1192
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 219497024
Equivalent to 13 /8s, 21 /16s and 66 /24s
Percentage of available RIPE address space announced: 65.4
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: 9615
Total LACNIC prefixes after maximum aggregation: 3212
Prefixes being announced from the LACNIC address blocks: 7958
Unique aggregates announced from the LACNIC address blocks: 4656
LACNIC Region origin ASes present in the Internet Routing Table: 640
LACNIC Region origin ASes announcing only one prefix: 202
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: 22052864
Equivalent to 1 /8s, 80 /16s and 128 /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: 1747
Total AfriNIC prefixes after maximum aggregation: 817
Prefixes being announced from the AfriNIC address blocks: 1062
Unique aggregates announced from the AfriNIC address blocks: 808
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: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2737152
Equivalent to 0 /8s, 41 /16s and 196 /24s
Percentage of available AfriNIC address space announced: 8.2
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 991 6168 208 CHINANET-BACKBONE
9583 803 77 12 Sify Limited
1221 756 1330 519 Telstra Pty Ltd
4755 714 259 66 Videsh Sanchar Nigam Ltd. Aut
4766 611 3927 290 Korea Telecom (KIX)
7545 512 108 72 TPG Internet Pty Ltd
17676 469 6803 99 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 340 164 59 BHARTI BT INTERNET LTD.
2907 337 1763 314 SINET Japan
17488 336 20 9 Hathway IP Over Cable Interne
9929 330 224 46 China Netcom Corp.
17557 328 23 160 Pakistan Telecom
4802 315 70 157 Wantree Development
7474 315 257 217 SingTel Optus Pty Ltd
18302 295 109 164 SK Global co., Ltd
9837 273 79 174 Powertel Ltd
17974 269 64 13 PT TELEKOMUNIKASI INDONESIA
18101 258 68 18 Reliance Infocom Ltd Internet
9800 253 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1513 6360 985 AT&T WorldNet Services
4323 1177 705 228 Time Warner Telecom
721 1072 21937 308 DLA Systems Automation Center
174 1067 5849 1000 Cogent Communications
701 992 8120 833 UUNET Technologies, Inc.
6197 947 399 488 BellSouth Network Solutions,
2386 922 513 684 AT&T Data Communications Serv
18566 858 240 7 Covad Communications
1239 857 2851 603 Sprint
209 632 3569 499 Qwest
20115 622 510 328 Charter Communications
3602 561 131 109 Sprint Canada, Inc.
3356 558 10657 432 Level 3 Communications, LLC
22773 543 1352 30 Cox Communications, Inc.
3561 538 2409 418 Savvis
5668 483 123 24 CenturyTel Internet Holdings,
6198 476 417 230 BellSouth Network Solutions,
19262 467 1412 120 Verizon Global Networks
7132 466 4950 398 SBC Internet Services
852 436 1092 383 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 610 1993 483 UUNET - Commercial IP service
3301 302 1081 288 TeliaNet Sweden
3320 285 3230 238 Deutsche Telekom AG
8220 268 475 262 COLT Telecommunications
680 244 2040 240 DFN-IP service G-WiN
8708 241 266 220 Romania Data Systems S.A.
3246 226 474 219 Song Networks
1257 194 712 172 SWIPnet Swedish IP Network
6746 189 50 164 Dynamic Network Technologies,
5515 181 778 127 Sonera Solution Autonomous Sy
3269 178 1638 70 TELECOM ITALIA
786 175 1795 175 The JANET IP Service
5400 169 289 142 BT Ignite European Backbone
8866 162 37 9 Bulgarian Telecommunication C
6830 158 669 33 UPC Distribution Services
3300 156 185 91 AUCS Communications Services
25186 152 227 107 France Telecom Transpac's Tra
3215 140 1205 82 France Telecom Transpac
24863 140 37 6 LINKdotNET AS number
1273 137 177 95 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 399 650 169 UniNet S.A. de C.V.
16814 297 18 7 NSS, S.A.
11172 278 85 65 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 145 68 17 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 112 7 13 TELEFONICA MANQUEHUE
21826 107 13 16 INTERCABLE
5639 103 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 96 23 18 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 226 The Internet Solution
5536 123 8 12 Internet Egypt Network
8452 114 36 8 TEDATA
2018 95 295 86 Tertiary Education Network
15475 83 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 28 3 18 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 21 4 4 Swift Global Kenya Ltd.Is an
23889 21 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 1177 949 Time Warner Telecom
18566 858 851 Covad Communications
9583 803 791 Sify Limited
4134 991 783 CHINANET-BACKBONE
721 1072 764 DLA Systems Automation Center
4755 714 648 Videsh Sanchar Nigam Ltd. Aut
22773 543 513 Cox Communications, Inc.
6197 947 459 BellSouth Network Solutions,
5668 483 459 CenturyTel Internet Holdings,
3602 561 452 Sprint Canada, Inc.
7545 512 440 TPG Internet Pty Ltd
17676 469 370 Softbank BB Corp.
6467 402 354 E.Spire Communications, Inc.
19262 467 347 Verizon Global Networks
11492 341 332 Cable One
17488 336 327 Hathway IP Over Cable Interne
4766 611 321 Korea Telecom (KIX)
15270 345 317 PaeTec.net -a division of Pae
9443 392 314 Primus Telecommunications
13609 333 302 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
64900 PRIVATE 64.116.137.0/24 17399 Comsat Venezuela, CO
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
64512 PRIVATE 170.51.242.0/24 19037 CTI Compania de Tele
65111 PRIVATE 194.165.131.0/24 8376 GO-JOR Autonomous Sy
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
64900 PRIVATE 200.85.68.0/24 17399 Comsat Venezuela, CO
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /8:18 /9:5 /10:8 /11:17 /12:80
/13:179 /14:327 /15:638 /16:8528 /17:2813 /18:4725
/19:10792 /20:11847 /21:9851 /22:13221 /23:14208 /24:92842
/25:320 /26:282 /27:179 /28:36 /29:12 /30:36
/31:3 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 842 858 Covad Communications
6197 774 947 BellSouth Network Solutions,
7018 731 1513 AT&T WorldNet Services
2386 635 922 AT&T Data Communications Serv
9583 626 803 Sify Limited
4323 560 1177 Time Warner Telecom
4766 426 611 Korea Telecom (KIX)
702 386 610 UUNET - Commercial IP service
5668 385 483 CenturyTel Internet Holdings,
7011 366 425 Citizens Utilities
1239 365 857 Sprint
19916 363 369 OLM LLC
6198 349 476 BellSouth Network Solutions,
11492 333 341 Cable One
6517 317 343 Yipes Communications, Inc.
15270 315 345 PaeTec.net -a division of Pae
13609 291 333 Choice One Communications Inc
701 284 992 UUNET Technologies, Inc.
18302 280 295 SK Global co., Ltd
22773 275 543 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 8:24 12:1601 13:1 15:10
16:3 17:3 18:3 20:27 24:558 30:3
32:66 38:166 40:54 44:3 47:2 52:4
55:1 56:3 57:40 58:93 59:69 60:140
61:747 62:756 63:1889 64:2905 65:2082 66:2956
67:634 68:651 69:1239 70:202 71:26 72:398
80:634 81:560 82:479 83:301 84:270 85:332
86:128 87:58 125:10 128:160 129:169 130:96
131:295 132:34 133:1 134:146 135:43 136:160
137:69 138:164 139:63 140:417 141:141 142:148
143:142 144:211 145:34 146:301 147:112 148:302
149:187 150:109 151:73 152:113 153:93 154:5
155:139 156:80 157:112 158:165 159:171 160:85
161:75 162:236 163:147 164:191 165:170 166:152
167:252 168:440 169:143 170:309 171:8 190:1
192:5715 193:3315 194:2413 195:1558 196:674 198:3882
199:3234 200:4184 201:348 202:6126 203:6437 204:3814
205:2053 206:2443 207:2856 208:2038 209:3405 210:1676
211:814 212:1215 213:1387 214:301 215:39 216:3720
217:1135 218:220 219:131 220:499 221:286 222:125
End of report
