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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 30 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 165628
Prefixes after maximum aggregation: 95915
Unique aggregates announced to Internet: 80205
Total ASes present in the Internet Routing Table: 19966
Origin-only ASes present in the Internet Routing Table: 17384
Origin ASes announcing only one prefix: 8174
Transit ASes present in the Internet Routing Table: 2582
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: 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: 1389356512
Equivalent to 82 /8s, 207 /16s and 229 /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: 78376
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 34378
Total APNIC prefixes after maximum aggregation: 16102
Prefixes being announced from the APNIC address blocks: 32201
Unique aggregates announced from the APNIC address blocks: 16282
APNIC Region origin ASes present in the Internet Routing Table: 2300
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: 4.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 188299648
Equivalent to 11 /8s, 57 /16s and 57 /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: 88938
Total ARIN prefixes after maximum aggregation: 54191
Prefixes being announced from the ARIN address blocks: 69539
Unique aggregates announced from the ARIN address blocks: 25564
ARIN Region origin ASes present in the Internet Routing Table: 10040
ARIN Region origin ASes announcing only one prefix: 3690
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: 17
Number of ARIN addresses announced to Internet: 251534592
Equivalent to 14 /8s, 254 /16s and 29 /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: 31571
Total RIPE prefixes after maximum aggregation: 21728
Prefixes being announced from the RIPE address blocks: 28705
Unique aggregates announced from the RIPE address blocks: 19300
RIPE Region origin ASes present in the Internet Routing Table: 6806
RIPE Region origin ASes announcing only one prefix: 3586
RIPE Region transit ASes present in the Internet Routing Table: 1123
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 210332480
Equivalent to 12 /8s, 137 /16s and 107 /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: 9039
Total LACNIC prefixes after maximum aggregation: 3118
Prefixes being announced from the LACNIC address blocks: 7423
Unique aggregates announced from the LACNIC address blocks: 4324
LACNIC Region origin ASes present in the Internet Routing Table: 621
LACNIC Region origin ASes announcing only one prefix: 189
LACNIC Region transit ASes present in the Internet Routing Table: 114
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 20393248
Equivalent to 1 /8s, 55 /16s and 45 /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: 1673
Total AfriNIC prefixes after maximum aggregation: 776
Prefixes being announced from the AfriNIC address blocks: 1025
Unique aggregates announced from the AfriNIC address blocks: 783
AfriNIC Region origin ASes present in the Internet Routing Table: 132
AfriNIC Region origin ASes announcing only one prefix: 39
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 915 5150 194 CHINANET-BACKBONE
1221 760 1454 536 Telstra Pty Ltd
9583 752 55 79 Sify Limited
4755 648 248 146 Videsh Sanchar Nigam Ltd. Aut
4766 591 3413 279 Korea Telecom (KIX)
7545 501 104 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 326 83 61 BHARTI BT INTERNET LTD.
7474 313 272 216 SingTel Optus Pty Ltd
4802 285 50 162 Wantree Development
4808 281 243 158 CNCGROUP IP network: China169
9837 280 80 184 Powertel Ltd
18302 273 109 155 SK Global co., Ltd
17557 271 20 149 Pakistan Telecom
17974 267 65 14 PT TELEKOMUNIKASI INDONESIA
17488 259 15 18 Hathway IP Over Cable Interne
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1487 6428 963 AT&T WorldNet Services
174 1144 5808 1063 Cogent Communications
4323 1118 631 216 Time Warner Telecom
721 1111 21787 313 DLA Systems Automation Center
701 1011 8168 854 UUNET Technologies, Inc.
6197 932 519 435 BellSouth Network Solutions,
2386 883 526 650 AT&T Data Communications Serv
1239 879 2883 634 Sprint
18566 825 224 7 Covad Communications
20115 649 497 321 Charter Communications
209 630 3507 496 Qwest
3356 558 10791 427 Level 3 Communications, LLC
27364 556 44 17 Armstrong Cable Services
3602 542 123 100 Sprint Canada, Inc.
852 540 1093 387 Telus Advanced Communications
3561 503 2384 417 Savvis
22773 498 1188 23 Cox Communications, Inc.
7725 494 60 15 MediaOne
5668 488 115 25 CenturyTel Internet Holdings,
6198 463 424 219 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 592 2001 484 UUNET - Commercial IP service
3320 305 3232 242 Deutsche Telekom AG
3301 299 1081 286 TeliaNet Sweden
8220 267 469 262 COLT Telecommunications
680 244 2041 240 DFN-IP service G-WiN
8708 231 254 213 Romania Data Systems S.A.
3246 225 488 220 Song Networks
1257 194 712 172 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,
5400 170 286 143 BT Ignite European Backbone
3269 169 1520 72 TELECOM ITALIA
719 168 340 101 LANLINK autonomous system
8866 158 21 11 Bulgarian Telecommunication C
3300 154 184 87 AUCS Communications Services
6830 149 537 31 UPC Distribution Services
9121 143 273 42 TTnet Autonomous System
25186 140 145 97 France Telecom Transpac's Tra
3352 137 1272 35 Ibernet, Internet Access Netw
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
19632 140 14 5 Metropolis Intercom S.A.
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 110 7 14 TELEFONICA MANQUEHUE
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.
23216 97 24 23 RAMtelecom Telecomunicaciones
22927 96 73 25 TELEFONICA DE ARGENTINA
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 94 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 41 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
21491 18 1 1 UTL On-line is RF broadband I
23889 18 5 7 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 1118 902 Time Warner Telecom
18566 825 818 Covad Communications
721 1111 798 DLA Systems Automation Center
4134 915 721 CHINANET-BACKBONE
9583 752 673 Sify Limited
27364 556 539 Armstrong Cable Services
4755 648 502 Videsh Sanchar Nigam Ltd. Aut
6197 932 497 BellSouth Network Solutions,
7725 494 479 MediaOne
22773 498 475 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
3602 542 442 Sprint Canada, Inc.
7545 501 429 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 /16:8438 /17:2606 /18:4468
/19:10472 /20:11340 /21:9355 /22:12756 /23:13789 /24:90228
/25:343 /26:305 /27:169 /28:44 /29:30 /30:69
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 809 825 Covad Communications
6197 760 932 BellSouth Network Solutions,
7018 692 1487 AT&T WorldNet Services
2386 598 883 AT&T Data Communications Serv
9583 571 752 Sify Limited
27364 547 556 Armstrong Cable Services
4323 540 1118 Time Warner Telecom
7725 465 494 MediaOne
4766 409 591 Korea Telecom (KIX)
5668 401 488 CenturyTel Internet Holdings,
1239 366 879 Sprint
702 364 592 UUNET - Commercial IP service
6198 338 463 BellSouth Network Solutions,
10036 336 346 C&M Communication Co. Ltd.
7011 318 369 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 24:1177 30:2
32:69 33:4 38:133 40:54 44:3 47:2
52:4 55:2 56:3 57:24 58:88 59:53
60:66 61:789 62:632 63:1889 64:2766 65:2084
66:2919 67:602 68:542 69:1084 70:122 71:10
72:244 80:586 81:576 82:453 83:280 84:207
85:269 86:29 128:175 129:172 130:87 131:297
132:38 133:1 134:146 135:44 136:120 137:72
138:168 139:59 140:266 141:104 142:149 143:145
144:193 145:32 146:283 147:107 148:292 149:171
150:107 151:65 152:107 153:88 154:4 155:142
156:78 157:100 158:160 159:168 160:77 161:68
162:208 163:93 164:209 165:178 166:153 167:242
168:434 169:140 170:319 171:8 172:1 190:1
192:5703 193:3193 194:2406 195:1579 196:665 198:3905
199:3287 200:4050 201:175 202:5777 203:6353 204:3772
205:2007 206:2450 207:2814 208:2081 209:3321 210:1718
211:860 212:1224 213:1301 214:266 215:31 216:3438
217:1140 218:207 219:139 220:392 221:231 222:114
End of report
