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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 10 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 164752
Prefixes after maximum aggregation: 95360
Unique aggregates announced to Internet: 79228
Total ASes present in the Internet Routing Table: 19824
Origin-only ASes present in the Internet Routing Table: 17264
Origin ASes announcing only one prefix: 8083
Transit ASes present in the Internet Routing Table: 2560
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 33
Prefixes from unregistered ASNs in the Routing Table: 19
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1414770272
Equivalent to 84 /8s, 83 /16s and 174 /24s
Percentage of available address space announced: 38.2
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 77675
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33994
Total APNIC prefixes after maximum aggregation: 15846
Prefixes being announced from the APNIC address blocks: 31900
Unique aggregates announced from the APNIC address blocks: 15926
APNIC Region origin ASes present in the Internet Routing Table: 2291
APNIC Region origin ASes announcing only one prefix: 671
APNIC Region transit ASes present in the Internet Routing Table: 348
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 186633856
Equivalent to 11 /8s, 31 /16s and 206 /24s
Percentage of available APNIC address space announced: 69.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575
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: 88820
Total ARIN prefixes after maximum aggregation: 54044
Prefixes being announced from the ARIN address blocks: 69303
Unique aggregates announced from the ARIN address blocks: 25340
ARIN Region origin ASes present in the Internet Routing Table: 9988
ARIN Region origin ASes announcing only one prefix: 3651
ARIN Region transit ASes present in the Internet Routing Table: 939
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 249357824
Equivalent to 14 /8s, 220 /16s and 230 /24s
Percentage of available ARIN address space announced: 70.8
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, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 31318
Total RIPE prefixes after maximum aggregation: 21601
Prefixes being announced from the RIPE address blocks: 28363
Unique aggregates announced from the RIPE address blocks: 19080
RIPE Region origin ASes present in the Internet Routing Table: 6729
RIPE Region origin ASes announcing only one prefix: 3535
RIPE Region transit ASes present in the Internet Routing Table: 1110
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 33
Number of RIPE addresses announced to Internet: 207862464
Equivalent to 12 /8s, 99 /16s and 186 /24s
Percentage of available RIPE address space announced: 72.9
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: 8936
Total LACNIC prefixes after maximum aggregation: 3098
Prefixes being announced from the LACNIC address blocks: 7327
Unique aggregates announced from the LACNIC address blocks: 4245
LACNIC Region origin ASes present in the Internet Routing Table: 623
LACNIC Region origin ASes announcing only one prefix: 191
LACNIC Region transit ASes present in the Internet Routing Table: 113
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 19143456
Equivalent to 1 /8s, 36 /16s and 27 /24s
Percentage of available LACNIC address space announced: 57.1
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1659
Total AfriNIC prefixes after maximum aggregation: 771
Prefixes being announced from the AfriNIC address blocks: 1012
Unique aggregates announced from the AfriNIC address blocks: 779
AfriNIC Region origin ASes present in the Internet Routing Table: 127
AfriNIC Region origin ASes announcing only one prefix: 35
AfriNIC Region transit ASes present in the Internet Routing Table: 16
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2289664
Equivalent to 0 /8s, 34 /16s and 240 /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 913 5150 192 CHINANET-BACKBONE
9583 756 55 63 Sify Limited
1221 755 1453 543 Telstra Pty Ltd
4755 605 246 123 Videsh Sanchar Nigam Ltd. Aut
4766 595 3413 279 Korea Telecom (KIX)
17676 436 6589 75 Softbank BB Corp.
7545 396 103 57 TPG Internet Pty Ltd
9443 374 77 76 Primus Telecommunications
9929 364 221 48 China Netcom Corp.
10036 340 56 306 C&M Communication Co. Ltd.
2907 338 1805 315 SINET Japan
9498 321 83 62 BHARTI BT INTERNET LTD.
17557 317 22 152 Pakistan Telecom
7474 311 271 214 SingTel Optus Pty Ltd
4808 310 250 172 CNCGROUP IP network: China169
4802 279 47 159 Wantree Development
18302 270 108 146 SK Global co., Ltd
17974 264 65 14 PT TELEKOMUNIKASI INDONESIA
2764 254 238 199 AAPT Limited
703 253 276 207 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1498 6476 974 AT&T WorldNet Services
174 1253 5616 1075 Cogent Communications
4323 1123 647 217 Time Warner Telecom
721 1110 21787 313 DLA Systems Automation Center
701 1016 8171 853 UUNET Technologies, Inc.
6197 920 498 438 BellSouth Network Solutions,
1239 895 2871 647 Sprint
2386 858 533 639 AT&T Data Communications Serv
18566 816 224 7 Covad Communications
209 633 3505 495 Qwest
20115 615 492 311 Charter Communications
27364 565 43 18 Armstrong Cable Services
3356 562 10824 431 Level 3 Communications, LLC
3602 543 123 100 Sprint Canada, Inc.
3561 535 2384 420 Savvis
852 526 1094 389 Telus Advanced Communications
22773 490 1188 23 Cox Communications, Inc.
5668 488 115 25 CenturyTel Internet Holdings,
7725 484 60 15 MediaOne
6198 467 386 222 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 595 2001 488 UUNET - Commercial IP service
3320 305 3232 241 Deutsche Telekom AG
3301 297 1085 285 TeliaNet Sweden
8220 270 469 266 COLT Telecommunications
680 252 2041 238 DFN-IP service G-WiN
8708 231 254 214 Romania Data Systems S.A.
3246 225 489 220 Song Networks
1257 198 712 174 SWIPnet Swedish IP Network
5515 179 778 129 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
719 168 340 101 LANLINK autonomous system
6746 168 47 146 Dynamic Network Technologies,
3269 166 1496 69 TELECOM ITALIA
5400 163 285 137 BT Ignite European Backbone
8866 161 21 11 Bulgarian Telecommunication C
3300 154 184 86 AUCS Communications Services
6830 137 513 27 UPC Distribution Services
25186 135 137 95 France Telecom Transpac's Tra
9051 131 8 33 INCONET Autonomous System
3352 130 1224 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 381 600 150 UniNet S.A. de C.V.
16814 264 16 12 NSS, S.A.
11172 221 98 53 Servicios Alestra S.A de C.V
6147 199 110 21 Telefonica Del Peru
11664 196 19 23 Keytech SA
14117 152 9 5 Telefonica del Sur S.A.
7303 150 69 19 Telecom Argentina Stet-France
6505 134 90 90 Global One Communicaoes Ltda
22047 131 96 6 VTR PUNTO NET S.A.
11556 130 64 3 Cable-Wireless Panama
13999 113 52 9 Mega Cable S.A. de C.V.
19632 108 14 5 Metropolis Intercom S.A.
18822 107 7 13 TELEFONICA MANQUEHUE
6503 106 146 72 AVANTEL, S.A.
19169 105 7 20 Telconet
10481 101 40 7 Prima S.A.
22927 97 73 25 TELEFONICA DE ARGENTINA
23216 96 24 23 RAMtelecom Telecomunicaciones
5639 94 12 9 Telecommunications Services o
21826 94 12 19 INTERCABLE
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
20928 94 16 2 Noor Advanced Technologies AS
2018 91 295 86 Tertiary Education Network
8452 82 28 6 TEDATA
2905 74 266 66 The Internetworking Company o
24835 64 34 6 RAYA Telecom - Egypt
6713 57 54 8 Itissalat Al-MAGHRIB
9129 45 3 3 UUNET Kenya
12455 38 6 3 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
15475 32 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
33765 20 3 8 TANZANIA TELECOMMUNICATIONS C
10798 19 1 11 Standard Bank of South Africa
23889 19 5 8 MAURITIUS TELECOM
21491 18 1 2 UTL On-line is RF broadband I
7460 17 3 5 LIA Internet Access
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1123 906 Time Warner Telecom
18566 816 809 Covad Communications
721 1110 797 DLA Systems Automation Center
4134 913 721 CHINANET-BACKBONE
9583 756 693 Sify Limited
27364 565 547 Armstrong Cable Services
6197 920 482 BellSouth Network Solutions,
4755 605 482 Videsh Sanchar Nigam Ltd. Aut
7725 484 469 MediaOne
22773 490 467 Cox Communications, Inc.
5668 488 463 CenturyTel Internet Holdings,
3602 543 443 Sprint Canada, Inc.
6467 423 389 E.Spire Communications, Inc.
17676 436 361 Softbank BB Corp.
7545 396 339 TPG Internet Pty Ltd
6140 403 327 ImpSat
4766 595 316 Korea Telecom (KIX)
9929 364 316 China Netcom Corp.
20115 615 304 Charter Communications
9443 374 298 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65009 PRIVATE 69.39.0.0/20 21803 1st Class Internet S
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 200.61.32.0/23 11664 Keytech SA
64512 PRIVATE 200.61.48.0/20 11664 Keytech SA
64512 PRIVATE 200.61.62.0/23 11664 Keytech SA
64512 PRIVATE 200.80.154.0/23 11664 Keytech SA
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
65529 PRIVATE 216.152.237.0/24 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 /8:19 /9:3 /10:8 /11:15 /12:71
/13:158 /14:308 /15:604 /16:8421 /17:2571 /18:4423
/19:10392 /20:11274 /21:9202 /22:12679 /23:13769 /24:89888
/25:335 /26:278 /27:151 /28:44 /29:30 /30:76
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 800 816 Covad Communications
6197 751 920 BellSouth Network Solutions,
7018 688 1498 AT&T WorldNet Services
2386 608 858 AT&T Data Communications Serv
9583 572 756 Sify Limited
27364 556 565 Armstrong Cable Services
4323 536 1123 Time Warner Telecom
7725 455 484 MediaOne
4766 412 595 Korea Telecom (KIX)
5668 402 488 CenturyTel Internet Holdings,
1239 379 895 Sprint
702 367 595 UUNET - Commercial IP service
6198 342 467 BellSouth Network Solutions,
10036 332 340 C&M Communication Co. Ltd.
7011 304 354 Citizens Utilities
6467 297 423 E.Spire Communications, Inc.
9929 283 364 China Netcom Corp.
15270 275 296 PaeTec.net -a division of Pae
6517 273 295 Yipes Communications, Inc.
174 270 1253 Cogent Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:15 12:1555 13:1 15:9 16:2
17:3 18:3 20:4 24:1164 30:2 32:69
33:4 38:126 40:53 44:3 47:2 52:4
55:2 56:3 57:24 58:90 59:44 60:54
61:795 62:601 63:1888 64:2745 65:2069 66:2876
67:579 68:526 69:1040 70:115 71:9 72:220
80:586 81:553 82:417 83:268 84:200 85:250
86:20 128:193 129:172 130:88 131:296 132:37
133:1 134:151 135:40 136:192 137:69 138:167
139:61 140:194 141:102 142:148 143:145 144:185
145:33 146:287 147:108 148:298 149:170 150:105
151:65 152:106 153:86 154:5 155:141 156:78
157:98 158:160 159:171 160:76 161:67 162:319
163:91 164:210 165:178 166:160 167:233 168:425
169:142 170:310 171:8 172:1 192:5709 193:3175
194:2419 195:1554 196:661 198:3931 199:3305 200:3995
201:155 202:5781 203:6308 204:3782 205:2006 206:2528
207:2829 208:2051 209:3315 210:1712 211:857 212:1212
213:1314 214:261 215:31 216:3451 217:1146 218:207
219:108 220:382 221:228 222:107
End of report
