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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 06 Jun, 2005
Analysis Summary
----------------
BGP routing table entries examined: 163833
Prefixes after maximum aggregation: 94999
Unique aggregates announced to Internet: 78996
Total ASes present in the Internet Routing Table: 19794
Origin-only ASes present in the Internet Routing Table: 17227
Origin ASes announcing only one prefix: 8083
Transit ASes present in the Internet Routing Table: 2567
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 26
Prefixes from unregistered ASNs in the Routing Table: 20
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1413359712
Equivalent to 84 /8s, 62 /16s and 40 /24s
Percentage of available address space announced: 38.1
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 77199
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33685
Total APNIC prefixes after maximum aggregation: 15723
Prefixes being announced from the APNIC address blocks: 31593
Unique aggregates announced from the APNIC address blocks: 15763
APNIC Region origin ASes present in the Internet Routing Table: 2288
APNIC Region origin ASes announcing only one prefix: 670
APNIC Region transit ASes present in the Internet Routing Table: 346
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 186117760
Equivalent to 11 /8s, 23 /16s and 238 /24s
Percentage of available APNIC address space announced: 69.1
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: 88405
Total ARIN prefixes after maximum aggregation: 53926
Prefixes being announced from the ARIN address blocks: 69062
Unique aggregates announced from the ARIN address blocks: 25406
ARIN Region origin ASes present in the Internet Routing Table: 9983
ARIN Region origin ASes announcing only one prefix: 3655
ARIN Region transit ASes present in the Internet Routing Table: 948
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 249201664
Equivalent to 14 /8s, 218 /16s and 132 /24s
Percentage of available ARIN address space announced: 70.7
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: 31156
Total RIPE prefixes after maximum aggregation: 21503
Prefixes being announced from the RIPE address blocks: 28239
Unique aggregates announced from the RIPE address blocks: 18986
RIPE Region origin ASes present in the Internet Routing Table: 6711
RIPE Region origin ASes announcing only one prefix: 3531
RIPE Region transit ASes present in the Internet Routing Table: 1106
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 207356352
Equivalent to 12 /8s, 92 /16s and 1 /24s
Percentage of available RIPE address space announced: 72.7
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: 8899
Total LACNIC prefixes after maximum aggregation: 3083
Prefixes being announced from the LACNIC address blocks: 7294
Unique aggregates announced from the LACNIC address blocks: 4230
LACNIC Region origin ASes present in the Internet Routing Table: 623
LACNIC Region origin ASes announcing only one prefix: 192
LACNIC Region transit ASes present in the Internet Routing Table: 117
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 19072032
Equivalent to 1 /8s, 35 /16s and 4 /24s
Percentage of available LACNIC address space announced: 56.8
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: 1662
Total AfriNIC prefixes after maximum aggregation: 764
Prefixes being announced from the AfriNIC address blocks: 1004
Unique aggregates announced from the AfriNIC address blocks: 777
AfriNIC Region origin ASes present in the Internet Routing Table: 126
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: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2280192
Equivalent to 0 /8s, 34 /16s and 203 /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 911 5146 190 CHINANET-BACKBONE
9583 754 55 63 Sify Limited
1221 752 1437 541 Telstra Pty Ltd
4755 609 246 124 Videsh Sanchar Nigam Ltd. Aut
4766 595 3413 279 Korea Telecom (KIX)
7545 500 88 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.
2907 338 1805 315 SINET Japan
10036 322 29 290 C&M Communication Co. Ltd.
17557 314 22 151 Pakistan Telecom
4808 308 250 169 CNCGROUP IP network: China169
7474 308 271 212 SingTel Optus Pty Ltd
9498 305 83 62 BHARTI BT INTERNET LTD.
4802 278 47 158 Wantree Development
17974 265 65 14 PT TELEKOMUNIKASI INDONESIA
18302 265 108 147 SK Global co., Ltd
17488 256 16 7 Hathway IP Over Cable Interne
703 255 277 209 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1492 6460 968 AT&T WorldNet Services
174 1194 5611 1023 Cogent Communications
4323 1124 647 217 Time Warner Telecom
721 1110 21787 313 DLA Systems Automation Center
701 1016 8187 854 UUNET Technologies, Inc.
6197 917 498 440 BellSouth Network Solutions,
1239 890 2873 645 Sprint
2386 854 532 634 AT&T Data Communications Serv
18566 816 224 7 Covad Communications
209 654 3505 497 Qwest
20115 614 491 313 Charter Communications
3356 566 10824 432 Level 3 Communications, LLC
27364 564 43 18 Armstrong Cable Services
3561 533 2384 419 Savvis
852 528 1095 390 Telus Advanced Communications
3602 527 123 101 Sprint Canada, Inc.
22773 490 1188 23 Cox Communications, Inc.
5668 489 115 25 CenturyTel Internet Holdings,
7725 482 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 486 UUNET - Commercial IP service
3320 304 3232 241 Deutsche Telekom AG
3301 297 1085 285 TeliaNet Sweden
8220 273 469 267 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 160 285 136 BT Ignite European Backbone
8866 156 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 30 INCONET Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 390 600 150 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 190 102 20 Telefonica Del Peru
7303 149 68 21 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.
19632 107 14 5 Metropolis Intercom S.A.
6503 106 146 72 AVANTEL, S.A.
18822 106 7 12 TELEFONICA MANQUEHUE
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 92 16 2 Noor Advanced Technologies AS
2018 91 295 86 Tertiary Education Network
8452 77 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 38 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
33765 20 3 8 TANZANIA TELECOMMUNICATIONS C
10798 19 1 11 Standard Bank of South Africa
23889 18 5 6 MAURITIUS TELECOM
7460 17 3 5 LIA Internet Access
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 1110 797 DLA Systems Automation Center
4134 911 721 CHINANET-BACKBONE
9583 754 691 Sify Limited
27364 564 546 Armstrong Cable Services
4755 609 485 Videsh Sanchar Nigam Ltd. Aut
6197 917 477 BellSouth Network Solutions,
22773 490 467 Cox Communications, Inc.
7725 482 467 MediaOne
5668 489 464 CenturyTel Internet Holdings,
7545 500 429 TPG Internet Pty Ltd
3602 527 426 Sprint Canada, Inc.
6467 424 390 E.Spire Communications, Inc.
17676 436 361 Softbank BB Corp.
6140 404 328 ImpSat
4766 595 316 Korea Telecom (KIX)
9929 364 316 China Netcom Corp.
20115 614 301 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
65024 PRIVATE 213.57.8.0/22 12849 Nonstop Internet Pro
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 /15:598 /16:8414 /17:2562 /18:4421
/19:10365 /20:11242 /21:9169 /22:12582 /23:13677 /24:89292
/25:328 /26:275 /27:142 /28:45 /29:29 /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 748 917 BellSouth Network Solutions,
7018 682 1492 AT&T WorldNet Services
2386 603 854 AT&T Data Communications Serv
9583 570 754 Sify Limited
27364 555 564 Armstrong Cable Services
4323 537 1124 Time Warner Telecom
7725 453 482 MediaOne
4766 412 595 Korea Telecom (KIX)
5668 403 489 CenturyTel Internet Holdings,
1239 374 890 Sprint
702 366 594 UUNET - Commercial IP service
6198 341 466 BellSouth Network Solutions,
10036 322 322 C&M Communication Co. Ltd.
7011 304 354 Citizens Utilities
6467 297 424 E.Spire Communications, Inc.
9929 283 364 China Netcom Corp.
6517 273 295 Yipes Communications, Inc.
15270 273 293 PaeTec.net -a division of Pae
11456 270 309 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:15 12:1547 13:1 15:9 16:2
17:3 18:3 20:4 24:1160 30:2 32:69
33:4 38:122 40:53 44:3 47:2 52:4
55:2 56:3 57:21 58:88 59:41 60:50
61:813 62:609 63:1890 64:2755 65:2068 66:2882
67:573 68:525 69:1044 70:115 71:9 72:214
80:579 81:553 82:408 83:266 84:193 85:246
86:17 128:183 129:171 130:85 131:273 132:36
133:1 134:150 135:40 136:184 137:69 138:168
139:61 140:192 141:102 142:149 143:145 144:184
145:33 146:286 147:107 148:301 149:165 150:105
151:65 152:107 153:86 154:5 155:143 156:78
157:97 158:160 159:171 160:77 161:60 162:204
163:86 164:212 165:177 166:159 167:233 168:423
169:140 170:310 171:8 172:1 192:5723 193:3187
194:2409 195:1549 196:661 198:3919 199:3291 200:3993
201:144 202:5654 203:6228 204:3770 205:2000 206:2497
207:2810 208:2067 209:3294 210:1702 211:840 212:1205
213:1284 214:265 215:31 216:3447 217:1141 218:202
219:106 220:377 221:226 222:108
End of report
