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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 29 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 165343
Prefixes after maximum aggregation: 95798
Unique aggregates announced to Internet: 80108
Total ASes present in the Internet Routing Table: 19957
Origin-only ASes present in the Internet Routing Table: 17387
Origin ASes announcing only one prefix: 8165
Transit ASes present in the Internet Routing Table: 2570
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 30
Prefixes from unregistered ASNs in the Routing Table: 23
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1389295072
Equivalent to 82 /8s, 206 /16s and 245 /24s
Percentage of available address space announced: 37.5
Percentage of allocated address space announced: 57.6
Percentage of available address space allocated: 65.1
Total number of prefixes smaller than registry allocations: 78262
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34207
Total APNIC prefixes after maximum aggregation: 16026
Prefixes being announced from the APNIC address blocks: 32024
Unique aggregates announced from the APNIC address blocks: 16206
APNIC Region origin ASes present in the Internet Routing Table: 2301
APNIC Region origin ASes announcing only one prefix: 675
APNIC Region transit ASes present in the Internet Routing Table: 352
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 188265344
Equivalent to 11 /8s, 56 /16s and 179 /24s
Percentage of available APNIC address space announced: 69.9
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: 88963
Total ARIN prefixes after maximum aggregation: 54199
Prefixes being announced from the ARIN address blocks: 69528
Unique aggregates announced from the ARIN address blocks: 25569
ARIN Region origin ASes present in the Internet Routing Table: 10042
ARIN Region origin ASes announcing only one prefix: 3690
ARIN Region transit ASes present in the Internet Routing Table: 941
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 251504384
Equivalent to 14 /8s, 253 /16s and 167 /24s
Percentage of available ARIN address space announced: 62.5
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: 31479
Total RIPE prefixes after maximum aggregation: 21675
Prefixes being announced from the RIPE address blocks: 28631
Unique aggregates announced from the RIPE address blocks: 19281
RIPE Region origin ASes present in the Internet Routing Table: 6794
RIPE Region origin ASes announcing only one prefix: 3574
RIPE Region transit ASes present in the Internet Routing Table: 1115
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 210273600
Equivalent to 12 /8s, 136 /16s and 133 /24s
Percentage of available RIPE address space announced: 73.7
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
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 8995
Total LACNIC prefixes after maximum aggregation: 3122
Prefixes being announced from the LACNIC address blocks: 7383
Unique aggregates announced from the LACNIC address blocks: 4329
LACNIC Region origin ASes present in the Internet Routing Table: 622
LACNIC Region origin ASes announcing only one prefix: 189
LACNIC Region transit ASes present in the Internet Routing Table: 113
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 20391712
Equivalent to 1 /8s, 55 /16s and 39 /24s
Percentage of available LACNIC address space announced: 30.4
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: 1670
Total AfriNIC prefixes after maximum aggregation: 776
Prefixes being announced from the AfriNIC address blocks: 1022
Unique aggregates announced from the AfriNIC address blocks: 783
AfriNIC Region origin ASes present in the Internet Routing Table: 130
AfriNIC Region origin ASes announcing only one prefix: 37
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: 2315520
Equivalent to 0 /8s, 35 /16s and 85 /24s
Percentage of available AfriNIC address space announced: 6.9
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 914 5150 193 CHINANET-BACKBONE
1221 759 1454 535 Telstra Pty Ltd
9583 758 55 79 Sify Limited
4755 648 248 146 Videsh Sanchar Nigam Ltd. Aut
4766 591 3413 279 Korea Telecom (KIX)
7545 500 104 72 TPG Internet Pty Ltd
17676 436 6589 75 Softbank BB Corp.
9443 375 77 77 Primus Telecommunications
9929 374 221 48 China Netcom Corp.
10036 346 65 310 C&M Communication Co. Ltd.
2907 338 1805 315 SINET Japan
9498 322 83 61 BHARTI BT INTERNET LTD.
7474 313 272 216 SingTel Optus Pty Ltd
4802 283 50 162 Wantree Development
4808 281 243 158 CNCGROUP IP network: China169
9837 280 80 184 Powertel Ltd
18302 273 109 153 SK Global co., Ltd
17974 267 65 14 PT TELEKOMUNIKASI INDONESIA
17488 255 15 18 Hathway IP Over Cable Interne
2764 253 238 198 AAPT Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1486 6428 963 AT&T WorldNet Services
174 1144 5808 1065 Cogent Communications
4323 1119 647 217 Time Warner Telecom
721 1111 21787 313 DLA Systems Automation Center
701 1014 8168 856 UUNET Technologies, Inc.
6197 930 534 432 BellSouth Network Solutions,
2386 885 526 652 AT&T Data Communications Serv
1239 877 2867 632 Sprint
18566 824 224 7 Covad Communications
20115 649 497 321 Charter Communications
209 632 3507 498 Qwest
3356 559 10790 427 Level 3 Communications, LLC
27364 556 44 17 Armstrong Cable Services
3602 542 123 101 Sprint Canada, Inc.
852 540 1093 387 Telus Advanced Communications
3561 539 2385 422 Savvis
22773 498 1188 23 Cox Communications, Inc.
7725 492 60 15 MediaOne
5668 489 115 25 CenturyTel Internet Holdings,
6198 464 416 218 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 595 2001 487 UUNET - Commercial IP service
3320 305 3232 242 Deutsche Telekom AG
3301 297 1081 284 TeliaNet Sweden
8220 267 469 262 COLT Telecommunications
680 244 2041 240 DFN-IP service G-WiN
8708 230 254 213 Romania Data Systems S.A.
3246 225 488 220 Song Networks
1257 197 712 174 SWIPnet Swedish IP Network
5515 179 778 129 Sonera Solution Autonomous Sy
786 175 1794 175 The JANET IP Service
6746 171 48 149 Dynamic Network Technologies,
3269 169 1520 72 TELECOM ITALIA
5400 169 285 144 BT Ignite European Backbone
8866 156 21 11 Bulgarian Telecommunication C
3300 154 184 87 AUCS Communications Services
6830 149 537 31 UPC Distribution Services
9121 145 273 36 TTnet Autonomous System
25186 140 145 97 France Telecom Transpac's Tra
3352 137 1272 35 Ibernet, Internet Access Netw
8551 133 116 20 Bezeq International
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 378 600 162 UniNet S.A. de C.V.
16814 264 16 12 NSS, S.A.
11172 219 98 52 Servicios Alestra S.A de C.V
6147 197 110 21 Telefonica Del Peru
11664 196 19 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
7303 150 69 18 Telecom Argentina Stet-France
22047 133 112 7 VTR PUNTO NET S.A.
6505 131 90 88 Global One Communicaoes Ltda
11556 131 64 3 Cable-Wireless Panama
19169 113 7 23 Telconet
18822 109 7 14 TELEFONICA MANQUEHUE
19632 109 14 5 Metropolis Intercom S.A.
13999 107 52 9 Mega Cable S.A. de C.V.
6503 101 146 72 AVANTEL, S.A.
10481 101 40 7 Prima S.A.
22927 96 73 25 TELEFONICA DE ARGENTINA
23216 96 24 23 RAMtelecom Telecomunicaciones
21826 95 13 20 INTERCABLE
5639 94 12 9 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 266 637 223 The Internet Solution
5536 120 15 17 Internet Egypt Network
8452 93 28 6 TEDATA
2018 91 295 86 Tertiary Education Network
20928 82 16 2 Noor Advanced Technologies AS
2905 75 266 67 The Internetworking Company o
6713 59 54 8 Itissalat Al-MAGHRIB
24835 57 34 6 RAYA Telecom - Egypt
9129 45 3 3 UUNET Kenya
12455 40 6 3 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
15475 36 84 4 Nile Online
15706 31 8 3 Sudatel Internet Exchange Aut
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
23889 19 5 8 MAURITIUS TELECOM
21491 18 1 1 UTL On-line is RF broadband I
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 1119 902 Time Warner Telecom
18566 824 817 Covad Communications
721 1111 798 DLA Systems Automation Center
4134 914 721 CHINANET-BACKBONE
9583 758 679 Sify Limited
27364 556 539 Armstrong Cable Services
4755 648 502 Videsh Sanchar Nigam Ltd. Aut
6197 930 498 BellSouth Network Solutions,
7725 492 477 MediaOne
22773 498 475 Cox Communications, Inc.
5668 489 464 CenturyTel Internet Holdings,
3602 542 441 Sprint Canada, Inc.
7545 500 428 TPG Internet Pty Ltd
17676 436 361 Softbank BB Corp.
6467 384 350 E.Spire Communications, Inc.
6140 404 329 ImpSat
20115 649 328 Charter Communications
9929 374 326 China Netcom Corp.
4766 591 312 Korea Telecom (KIX)
19262 420 306 Verizon Global Networks
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
65507 PRIVATE 200.0.64.0/24 27750 Cooperación Latino A
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
65004 PRIVATE 200.4.7.0/24 28477 Universidad Autonoma
64512 PRIVATE 200.59.145.0/24 11664 Keytech SA
64512 PRIVATE 200.59.146.0/24 11664 Keytech SA
64512 PRIVATE 200.59.147.0/24 11664 Keytech SA
64512 PRIVATE 200.59.161.0/24 11664 Keytech SA
64512 PRIVATE 200.59.162.0/24 11664 Keytech SA
64512 PRIVATE 200.61.32.0/23 11664 Keytech SA
64512 PRIVATE 200.61.62.0/23 11664 Keytech SA
64512 PRIVATE 200.80.154.0/23 11664 Keytech SA
65201 PRIVATE 201.30.243.0/24 4230 Embratel
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
50.160.0.0/13 1221 Telstra Pty Ltd
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
172.32.0.0/24 7011 Citizens Utilities
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
192.169.0.0/23 3970 RGnet, Inc.
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 /9:3 /10:8 /11:15 /12:74
/13:161 /14:310 /15:595 /16:8440 /17:2597 /18:4457
/19:10453 /20:11328 /21:9333 /22:12749 /23:13761 /24:90066
/25:326 /26:305 /27:170 /28:44 /29:29 /30:69
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 808 824 Covad Communications
6197 758 930 BellSouth Network Solutions,
7018 690 1486 AT&T WorldNet Services
2386 600 885 AT&T Data Communications Serv
9583 577 758 Sify Limited
27364 547 556 Armstrong Cable Services
4323 540 1119 Time Warner Telecom
7725 463 492 MediaOne
4766 409 591 Korea Telecom (KIX)
5668 402 489 CenturyTel Internet Holdings,
702 367 595 UUNET - Commercial IP service
1239 365 877 Sprint
6198 338 464 BellSouth Network Solutions,
10036 336 346 C&M Communication Co. Ltd.
7011 317 368 Citizens Utilities
9929 293 374 China Netcom Corp.
15270 286 311 PaeTec.net -a division of Pae
6517 283 305 Yipes Communications, Inc.
20115 281 649 Charter Communications
11456 274 312 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:17 9:1 12:1547 13:1 15:9
16:2 17:3 18:3 20:4 24:1175 30:2
32:69 33:4 38:133 40:54 44:3 47:2
52:4 55:2 56:3 57:24 58:87 59:53
60:62 61:777 62:628 63:1887 64:2768 65:2085
66:2914 67:599 68:542 69:1080 70:121 71:10
72:244 80:588 81:573 82:453 83:279 84:207
85:270 86:29 128:177 129:173 130:87 131:297
132:38 133:1 134:146 135:44 136:135 137:66
138:168 139:59 140:265 141:104 142:149 143:144
144:193 145:32 146:284 147:107 148:304 149:171
150:107 151:65 152:107 153:88 154:4 155:142
156:78 157:99 158:160 159:169 160:77 161:68
162:209 163:92 164:208 165:178 166:154 167:242
168:432 169:139 170:312 171:9 172:1 192:5687
193:3182 194:2388 195:1574 196:662 198:3902 199:3300
200:4014 201:176 202:5744 203:6294 204:3774 205:2020
206:2467 207:2814 208:2084 209:3320 210:1713 211:858
212:1228 213:1304 214:267 215:31 216:3436 217:1148
218:207 219:131 220:391 221:231 222:113
End of report
