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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 08 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 164265
Prefixes after maximum aggregation: 95169
Unique aggregates announced to Internet: 79188
Total ASes present in the Internet Routing Table: 19815
Origin-only ASes present in the Internet Routing Table: 17246
Origin ASes announcing only one prefix: 8085
Transit ASes present in the Internet Routing Table: 2569
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: 23
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: 14
Number of addresses announced to Internet: 1414178144
Equivalent to 84 /8s, 74 /16s and 165 /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: 77438
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33850
Total APNIC prefixes after maximum aggregation: 15796
Prefixes being announced from the APNIC address blocks: 31749
Unique aggregates announced from the APNIC address blocks: 15886
APNIC Region origin ASes present in the Internet Routing Table: 2290
APNIC Region origin ASes announcing only one prefix: 672
APNIC Region transit ASes present in the Internet Routing Table: 350
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 186368384
Equivalent to 11 /8s, 27 /16s and 193 /24s
Percentage of available APNIC address space announced: 69.2
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: 88534
Total ARIN prefixes after maximum aggregation: 53943
Prefixes being announced from the ARIN address blocks: 69138
Unique aggregates announced from the ARIN address blocks: 25396
ARIN Region origin ASes present in the Internet Routing Table: 9990
ARIN Region origin ASes announcing only one prefix: 3656
ARIN Region transit ASes present in the Internet Routing Table: 944
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 249275904
Equivalent to 14 /8s, 219 /16s and 166 /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: 31258
Total RIPE prefixes after maximum aggregation: 21579
Prefixes being announced from the RIPE address blocks: 28329
Unique aggregates announced from the RIPE address blocks: 19052
RIPE Region origin ASes present in the Internet Routing Table: 6718
RIPE Region origin ASes announcing only one prefix: 3531
RIPE Region transit ASes present in the Internet Routing Table: 1104
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 207811520
Equivalent to 12 /8s, 98 /16s and 243 /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: 8918
Total LACNIC prefixes after maximum aggregation: 3079
Prefixes being announced from the LACNIC address blocks: 7311
Unique aggregates announced from the LACNIC address blocks: 4239
LACNIC Region origin ASes present in the Internet Routing Table: 624
LACNIC Region origin ASes announcing only one prefix: 192
LACNIC Region transit ASes present in the Internet Routing Table: 118
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 19099680
Equivalent to 1 /8s, 35 /16s and 112 /24s
Percentage of available LACNIC address space announced: 56.9
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: 1680
Total AfriNIC prefixes after maximum aggregation: 772
Prefixes being announced from the AfriNIC address blocks: 1011
Unique aggregates announced from the AfriNIC address blocks: 778
AfriNIC Region origin ASes present in the Internet Routing Table: 127
AfriNIC Region origin ASes announcing only one prefix: 34
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: 2284288
Equivalent to 0 /8s, 34 /16s and 219 /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 755 55 63 Sify Limited
1221 754 1438 543 Telstra Pty Ltd
4755 604 246 124 Videsh Sanchar Nigam Ltd. Aut
4766 595 3413 279 Korea Telecom (KIX)
7545 501 104 71 TPG Internet Pty Ltd
17676 436 6589 75 Softbank BB Corp.
9443 370 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 322 83 62 BHARTI BT INTERNET LTD.
17557 317 22 152 Pakistan Telecom
4808 310 250 172 CNCGROUP IP network: China169
7474 306 271 210 SingTel Optus Pty Ltd
4802 278 47 158 Wantree Development
18302 266 108 146 SK Global co., Ltd
17974 265 65 14 PT TELEKOMUNIKASI INDONESIA
703 255 277 209 UUNET - Commercial IP service
2764 254 238 199 AAPT Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1486 6475 969 AT&T WorldNet Services
174 1200 5612 1027 Cogent Communications
4323 1124 647 217 Time Warner Telecom
721 1105 21787 313 DLA Systems Automation Center
701 1015 8171 853 UUNET Technologies, Inc.
6197 919 498 436 BellSouth Network Solutions,
1239 890 2873 643 Sprint
2386 857 533 637 AT&T Data Communications Serv
18566 816 224 7 Covad Communications
209 652 3505 496 Qwest
20115 615 492 311 Charter Communications
3356 566 10824 432 Level 3 Communications, LLC
27364 564 43 18 Armstrong Cable Services
3602 536 123 100 Sprint Canada, Inc.
3561 534 2384 420 Savvis
852 526 1094 389 Telus Advanced Communications
22773 490 1188 23 Cox Communications, Inc.
5668 489 115 25 CenturyTel Internet Holdings,
7725 483 60 15 MediaOne
6198 466 386 221 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 594 2001 487 UUNET - Commercial IP service
3320 304 3232 241 Deutsche Telekom AG
3301 297 1085 285 TeliaNet Sweden
8220 272 469 267 COLT Telecommunications
680 252 2041 238 DFN-IP service G-WiN
8708 230 254 214 Romania Data Systems S.A.
3246 228 490 223 Song Networks
1257 198 712 174 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
719 170 340 102 LANLINK autonomous system
6746 167 47 146 Dynamic Network Technologies,
3269 166 1496 69 TELECOM ITALIA
5400 163 286 137 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
1273 131 170 94 Cable & Wireless Deutschland
9051 131 8 33 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 391 600 151 UniNet S.A. de C.V.
16814 265 16 7 NSS, S.A.
11172 221 98 53 Servicios Alestra S.A de C.V
11664 195 19 22 Keytech SA
6147 191 102 20 Telefonica Del Peru
7303 149 69 19 Telecom Argentina Stet-France
14117 136 9 5 Telefonica del Sur S.A.
6505 133 90 89 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.
18822 107 7 13 TELEFONICA MANQUEHUE
19632 107 14 5 Metropolis Intercom S.A.
6503 105 146 71 AVANTEL, S.A.
19169 104 7 19 Telconet
10481 101 40 7 Prima S.A.
22927 97 73 25 TELEFONICA DE ARGENTINA
23216 95 24 23 RAMtelecom Telecomunicaciones
21826 94 12 19 INTERCABLE
11311 89 8 18 Sinectis S.A.
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 63 34 6 RAYA Telecom - Egypt
6713 59 54 8 Itissalat Al-MAGHRIB
9129 45 3 3 UUNET Kenya
12455 37 6 3 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
15475 32 84 4 Nile Online
2609 31 26 3 Tunisia BackBone AS
15706 31 8 3 Sudatel Internet Exchange Aut
8524 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
23889 20 5 8 MAURITIUS TELECOM
33765 20 3 8 TANZANIA TELECOMMUNICATIONS C
10798 19 1 11 Standard Bank of South Africa
21491 18 1 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1124 907 Time Warner Telecom
18566 816 809 Covad Communications
721 1105 792 DLA Systems Automation Center
4134 913 721 CHINANET-BACKBONE
9583 755 692 Sify Limited
27364 564 546 Armstrong Cable Services
6197 919 483 BellSouth Network Solutions,
4755 604 480 Videsh Sanchar Nigam Ltd. Aut
7725 483 468 MediaOne
22773 490 467 Cox Communications, Inc.
5668 489 464 CenturyTel Internet Holdings,
3602 536 436 Sprint Canada, Inc.
7545 501 430 TPG Internet Pty Ltd
6467 424 390 E.Spire Communications, Inc.
17676 436 361 Softbank BB Corp.
6140 403 327 ImpSat
4766 595 316 Korea Telecom (KIX)
9929 364 316 China Netcom Corp.
20115 615 304 Charter Communications
9443 370 294 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
192.172.0.0/19 721 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 /15:602 /16:8419 /17:2568 /18:4422
/19:10386 /20:11264 /21:9230 /22:12642 /23:13728 /24:89483
/25:331 /26:276 /27:147 /28:44 /29:31 /30:78
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 800 816 Covad Communications
6197 750 919 BellSouth Network Solutions,
7018 683 1486 AT&T WorldNet Services
2386 606 857 AT&T Data Communications Serv
9583 571 755 Sify Limited
27364 555 564 Armstrong Cable Services
4323 537 1124 Time Warner Telecom
7725 454 483 MediaOne
4766 412 595 Korea Telecom (KIX)
5668 403 489 CenturyTel Internet Holdings,
1239 377 890 Sprint
702 366 594 UUNET - Commercial IP service
6198 341 466 BellSouth Network Solutions,
10036 332 340 C&M Communication Co. Ltd.
7011 304 354 Citizens Utilities
6467 297 424 E.Spire Communications, Inc.
9929 283 364 China Netcom Corp.
15270 275 295 PaeTec.net -a division of Pae
6517 273 295 Yipes Communications, Inc.
11456 270 309 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:15 12:1554 13:1 15:9 16:2
17:3 18:3 20:4 24:1161 30:2 32:69
33:4 38:125 40:53 44:3 47:2 52:4
55:2 56:3 57:24 58:90 59:44 60:52
61:808 62:609 63:1892 64:2740 65:2064 66:2879
67:578 68:524 69:1042 70:113 71:9 72:217
80:583 81:552 82:416 83:268 84:190 85:246
86:19 128:184 129:171 130:88 131:296 132:37
133:1 134:151 135:40 136:178 137:69 138:167
139:61 140:192 141:102 142:148 143:145 144:185
145:33 146:287 147:108 148:301 149:169 150:105
151:65 152:107 153:86 154:5 155:142 156:78
157:97 158:160 159:171 160:77 161:67 162:215
163:88 164:211 165:178 166:159 167:234 168:425
169:140 170:309 171:8 172:1 192:5720 193:3197
194:2418 195:1555 196:662 198:3924 199:3296 200:3996
201:144 202:5680 203:6245 204:3770 205:2001 206:2512
207:2816 208:2056 209:3298 210:1706 211:843 212:1208
213:1288 214:263 215:30 216:3447 217:1150 218:207
219:107 220:387 221:227 222:108
End of report
