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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 24 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 165488
Prefixes after maximum aggregation: 95726
Unique aggregates announced to Internet: 80132
Total ASes present in the Internet Routing Table: 19941
Origin-only ASes present in the Internet Routing Table: 17365
Origin ASes announcing only one prefix: 8144
Transit ASes present in the Internet Routing Table: 2576
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 24
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: 15
Number of addresses announced to Internet: 1402540256
Equivalent to 83 /8s, 153 /16s and 16 /24s
Percentage of available address space announced: 37.8
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 65.1
Total number of prefixes smaller than registry allocations: 78231
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34306
Total APNIC prefixes after maximum aggregation: 15988
Prefixes being announced from the APNIC address blocks: 32192
Unique aggregates announced from the APNIC address blocks: 16355
APNIC Region origin ASes present in the Internet Routing Table: 2297
APNIC Region origin ASes announcing only one prefix: 670
APNIC Region transit ASes present in the Internet Routing Table: 351
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 187010688
Equivalent to 11 /8s, 37 /16s and 142 /24s
Percentage of available APNIC address space announced: 69.4
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: 88993
Total ARIN prefixes after maximum aggregation: 54144
Prefixes being announced from the ARIN address blocks: 69542
Unique aggregates announced from the ARIN address blocks: 25524
ARIN Region origin ASes present in the Internet Routing Table: 10027
ARIN Region origin ASes announcing only one prefix: 3674
ARIN Region transit ASes present in the Internet Routing Table: 943
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 250829312
Equivalent to 14 /8s, 243 /16s and 90 /24s
Percentage of available ARIN address space announced: 62.3
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: 31559
Total RIPE prefixes after maximum aggregation: 21704
Prefixes being announced from the RIPE address blocks: 28592
Unique aggregates announced from the RIPE address blocks: 19226
RIPE Region origin ASes present in the Internet Routing Table: 6790
RIPE Region origin ASes announcing only one prefix: 3573
RIPE Region transit ASes present in the Internet Routing Table: 1117
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 209673536
Equivalent to 12 /8s, 127 /16s and 93 /24s
Percentage of available RIPE address space announced: 73.5
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: 8986
Total LACNIC prefixes after maximum aggregation: 3119
Prefixes being announced from the LACNIC address blocks: 7362
Unique aggregates announced from the LACNIC address blocks: 4297
LACNIC Region origin ASes present in the Internet Routing Table: 623
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: 20359200
Equivalent to 1 /8s, 54 /16s and 168 /24s
Percentage of available LACNIC address space announced: 30.3
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: 1617
Total AfriNIC prefixes after maximum aggregation: 771
Prefixes being announced from the AfriNIC address blocks: 1014
Unique aggregates announced from the AfriNIC address blocks: 776
AfriNIC Region origin ASes present in the Internet Routing Table: 131
AfriNIC Region origin ASes announcing only one prefix: 38
AfriNIC Region transit ASes present in the Internet Routing Table: 16
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2292224
Equivalent to 0 /8s, 34 /16s and 250 /24s
Percentage of available AfriNIC address space announced: 6.8
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 918 5150 193 CHINANET-BACKBONE
9583 760 55 79 Sify Limited
1221 759 1454 541 Telstra Pty Ltd
4755 639 247 141 Videsh Sanchar Nigam Ltd. Aut
4766 595 3413 279 Korea Telecom (KIX)
7545 501 104 72 TPG Internet Pty Ltd
17676 436 6589 75 Softbank BB Corp.
9443 374 77 76 Primus Telecommunications
9929 355 221 48 China Netcom Corp.
2907 345 1822 320 SINET Japan
10036 345 65 311 C&M Communication Co. Ltd.
9498 322 83 61 BHARTI BT INTERNET LTD.
17557 319 22 154 Pakistan Telecom
7474 314 272 217 SingTel Optus Pty Ltd
4802 282 49 161 Wantree Development
4808 280 243 158 CNCGROUP IP network: China169
9837 279 80 184 Powertel Ltd
18302 270 108 152 SK Global co., Ltd
17974 264 65 14 PT TELEKOMUNIKASI INDONESIA
2764 254 238 199 AAPT Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1485 6476 971 AT&T WorldNet Services
174 1155 5809 1072 Cogent Communications
4323 1121 647 217 Time Warner Telecom
721 1110 21787 313 DLA Systems Automation Center
701 1005 8166 848 UUNET Technologies, Inc.
6197 928 535 430 BellSouth Network Solutions,
1239 890 2871 642 Sprint
2386 885 526 652 AT&T Data Communications Serv
18566 824 224 7 Covad Communications
20115 647 495 320 Charter Communications
209 632 3507 498 Qwest
27364 565 43 18 Armstrong Cable Services
3356 562 10822 430 Level 3 Communications, LLC
3602 545 123 102 Sprint Canada, Inc.
852 541 1093 388 Telus Advanced Communications
3561 539 2385 422 Savvis
22773 494 1188 23 Cox Communications, Inc.
7725 491 60 15 MediaOne
5668 488 115 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
702 596 2001 488 UUNET - Commercial IP service
3320 306 3232 242 Deutsche Telekom AG
3301 297 1081 284 TeliaNet Sweden
8220 268 469 264 COLT Telecommunications
680 244 2041 240 DFN-IP service G-WiN
8708 231 254 214 Romania Data Systems S.A.
3246 226 488 221 Song Networks
1257 199 712 175 SWIPnet Swedish IP Network
5515 179 778 129 Sonera Solution Autonomous Sy
786 175 1794 175 The JANET IP Service
5400 170 285 145 BT Ignite European Backbone
6746 169 47 147 Dynamic Network Technologies,
3269 168 1520 72 TELECOM ITALIA
8866 156 21 11 Bulgarian Telecommunication C
3300 154 184 87 AUCS Communications Services
6830 147 537 31 UPC Distribution Services
9121 141 272 36 TTnet Autonomous System
3352 137 1272 35 Ibernet, Internet Access Netw
25186 137 137 95 France Telecom Transpac's Tra
8551 133 116 20 Bezeq International
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 379 600 157 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 149 68 21 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 111 7 22 Telconet
18822 109 7 14 TELEFONICA MANQUEHUE
19632 108 14 5 Metropolis Intercom S.A.
13999 107 52 9 Mega Cable S.A. de C.V.
10481 101 40 7 Prima S.A.
6503 100 146 72 AVANTEL, S.A.
23216 96 24 23 RAMtelecom Telecomunicaciones
21826 95 13 20 INTERCABLE
22927 95 73 25 TELEFONICA DE ARGENTINA
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 119 15 17 Internet Egypt Network
2018 91 295 86 Tertiary Education Network
8452 87 28 6 TEDATA
2905 75 266 67 The Internetworking Company o
6713 59 54 8 Itissalat Al-MAGHRIB
24835 57 34 6 RAYA Telecom - Egypt
20928 51 16 2 Noor Advanced Technologies AS
9129 45 3 3 UUNET Kenya
12455 40 6 3 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
15475 34 84 4 Nile Online
15706 31 8 3 Sudatel Internet Exchange Aut
8524 22 1 9 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 1121 904 Time Warner Telecom
18566 824 817 Covad Communications
721 1110 797 DLA Systems Automation Center
4134 918 725 CHINANET-BACKBONE
9583 760 681 Sify Limited
27364 565 547 Armstrong Cable Services
6197 928 498 BellSouth Network Solutions,
4755 639 498 Videsh Sanchar Nigam Ltd. Aut
7725 491 476 MediaOne
22773 494 471 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
3602 545 443 Sprint Canada, Inc.
7545 501 429 TPG Internet Pty Ltd
6467 428 394 E.Spire Communications, Inc.
17676 436 361 Softbank BB Corp.
6140 403 329 ImpSat
20115 647 327 Charter Communications
4766 595 316 Korea Telecom (KIX)
9929 355 307 China Netcom Corp.
19262 407 303 Verizon Global Networks
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
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
65313 PRIVATE 203.184.140.0/24 9304 Hutchison Telecom (H
65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
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 /8:18 /9:3 /10:8 /11:15 /12:73
/13:160 /14:310 /15:591 /16:8428 /17:2594 /18:4446
/19:10440 /20:11302 /21:9310 /22:12726 /23:13749 /24:90329
/25:331 /26:309 /27:169 /28:45 /29:30 /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 756 928 BellSouth Network Solutions,
7018 686 1485 AT&T WorldNet Services
2386 600 885 AT&T Data Communications Serv
9583 578 760 Sify Limited
27364 556 565 Armstrong Cable Services
4323 542 1121 Time Warner Telecom
7725 462 491 MediaOne
4766 413 595 Korea Telecom (KIX)
5668 402 488 CenturyTel Internet Holdings,
1239 380 890 Sprint
702 368 596 UUNET - Commercial IP service
6198 338 464 BellSouth Network Solutions,
10036 335 345 C&M Communication Co. Ltd.
7011 304 354 Citizens Utilities
6467 296 428 E.Spire Communications, Inc.
15270 286 311 PaeTec.net -a division of Pae
20115 280 647 Charter Communications
9929 274 355 China Netcom Corp.
11456 274 312 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:4 8:17 12:1543 13:1 15:9
16:2 17:3 18:3 20:4 24:1177 30:2
32:69 33:4 38:131 40:53 44:3 47:2
52:4 55:2 56:3 57:27 58:101 59:50
60:57 61:787 62:621 63:1878 64:2783 65:2088
66:2919 67:593 68:539 69:1065 70:120 71:9
72:239 80:582 81:569 82:449 83:279 84:206
85:264 86:26 128:185 129:169 130:87 131:297
132:38 133:1 134:145 135:41 136:133 137:64
138:168 139:59 140:261 141:105 142:149 143:144
144:190 145:32 146:287 147:109 148:303 149:171
150:106 151:65 152:107 153:88 154:5 155:142
156:78 157:99 158:160 159:169 160:77 161:70
162:208 163:91 164:214 165:178 166:154 167:242
168:429 169:139 170:311 171:9 172:1 192:5721
193:3194 194:2395 195:1565 196:658 198:3913 199:3303
200:3999 201:170 202:5822 203:6382 204:3771 205:2029
206:2497 207:2828 208:2081 209:3315 210:1711 211:854
212:1229 213:1350 214:265 215:31 216:3491 217:1113
218:208 219:132 220:393 221:229 222:112
End of report
