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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 25 May, 2005
Analysis Summary
----------------
BGP routing table entries examined: 162988
Prefixes after maximum aggregation: 94612
Unique aggregates announced to Internet: 78660
Total ASes present in the Internet Routing Table: 19714
Origin-only ASes present in the Internet Routing Table: 17146
Origin ASes announcing only one prefix: 8053
Transit ASes present in the Internet Routing Table: 2568
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 14
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1409030720
Equivalent to 83 /8s, 252 /16s and 26 /24s
Percentage of available address space announced: 38.0
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 76669
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33432
Total APNIC prefixes after maximum aggregation: 15692
Prefixes being announced from the APNIC address blocks: 31336
Unique aggregates announced from the APNIC address blocks: 15899
APNIC Region origin ASes present in the Internet Routing Table: 2278
APNIC Region origin ASes announcing only one prefix: 668
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: 17
Number of APNIC addresses announced to Internet: 183902080
Equivalent to 10 /8s, 246 /16s and 31 /24s
Percentage of available APNIC address space announced: 68.2
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: 88288
Total ARIN prefixes after maximum aggregation: 53718
Prefixes being announced from the ARIN address blocks: 68931
Unique aggregates announced from the ARIN address blocks: 25314
ARIN Region origin ASes present in the Internet Routing Table: 9947
ARIN Region origin ASes announcing only one prefix: 3629
ARIN Region transit ASes present in the Internet Routing Table: 940
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 248601856
Equivalent to 14 /8s, 209 /16s and 93 /24s
Percentage of available ARIN address space announced: 70.6
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: 30901
Total RIPE prefixes after maximum aggregation: 21375
Prefixes being announced from the RIPE address blocks: 27972
Unique aggregates announced from the RIPE address blocks: 18746
RIPE Region origin ASes present in the Internet Routing Table: 6672
RIPE Region origin ASes announcing only one prefix: 3524
RIPE Region transit ASes present in the Internet Routing Table: 1119
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 205364416
Equivalent to 12 /8s, 61 /16s and 156 /24s
Percentage of available RIPE address space announced: 72.0
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: 8717
Total LACNIC prefixes after maximum aggregation: 3061
Prefixes being announced from the LACNIC address blocks: 7130
Unique aggregates announced from the LACNIC address blocks: 4141
LACNIC Region origin ASes present in the Internet Routing Table: 623
LACNIC Region origin ASes announcing only one prefix: 196
LACNIC Region transit ASes present in the Internet Routing Table: 116
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 18905344
Equivalent to 1 /8s, 32 /16s and 121 /24s
Percentage of available LACNIC address space announced: 56.3
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: 1630
Total AfriNIC prefixes after maximum aggregation: 766
Prefixes being announced from the AfriNIC address blocks: 1001
Unique aggregates announced from the AfriNIC address blocks: 776
AfriNIC Region origin ASes present in the Internet Routing Table: 125
AfriNIC Region origin ASes announcing only one prefix: 36
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2279680
Equivalent to 0 /8s, 34 /16s and 201 /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 907 5125 187 CHINANET-BACKBONE
1221 749 1182 537 Telstra Pty Ltd
9583 731 54 81 Sify Limited
4755 605 246 125 Videsh Sanchar Nigam Ltd. Aut
4766 589 3412 277 Korea Telecom (KIX)
7545 484 88 71 TPG Internet Pty Ltd
17676 432 6525 74 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 360 197 46 China Netcom Corp.
2907 345 1838 319 SINET Japan
10036 323 29 290 C&M Communication Co. Ltd.
17557 315 22 152 Pakistan Telecom
4808 308 249 168 CNCGROUP IP network: China169
7474 307 270 210 SingTel Optus Pty Ltd
9498 295 83 59 BHARTI BT INTERNET LTD.
4802 287 48 164 Wantree Development
17974 260 65 14 PT TELEKOMUNIKASI INDONESIA
18302 256 107 143 SK Global co., Ltd
703 255 277 210 UUNET - Commercial IP service
2764 252 238 197 AAPT Limited
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1486 6455 964 AT&T WorldNet Services
174 1169 5609 1000 Cogent Communications
721 1114 21755 312 DLA Systems Automation Center
4323 1113 631 216 Time Warner Telecom
701 1019 8186 857 UUNET Technologies, Inc.
6197 908 380 464 BellSouth Network Solutions,
1239 894 2869 649 Sprint
2386 853 532 635 AT&T Data Communications Serv
18566 812 224 7 Covad Communications
209 653 3505 493 Qwest
20115 600 506 315 Charter Communications
3356 579 10842 436 Level 3 Communications, LLC
27364 565 43 18 Armstrong Cable Services
852 532 1095 392 Telus Advanced Communications
3561 532 2384 418 Savvis
3602 524 123 99 Sprint Canada, Inc.
5668 487 115 25 CenturyTel Internet Holdings,
22773 485 1188 20 Cox Communications, Inc.
6198 468 445 210 BellSouth Network Solutions,
7725 450 60 15 MediaOne
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 595 2003 487 UUNET - Commercial IP service
3320 307 3233 241 Deutsche Telekom AG
3301 295 1084 283 TeliaNet Sweden
8220 274 469 268 COLT Telecommunications
680 253 2041 238 DFN-IP service G-WiN
3246 231 491 226 Song Networks
8708 229 252 213 Romania Data Systems S.A.
1257 199 727 175 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3269 166 1496 69 TELECOM ITALIA
719 165 340 102 LANLINK autonomous system
6746 165 47 144 Dynamic Network Technologies,
8866 164 21 11 Bulgarian Telecommunication C
5400 162 285 136 BT Ignite European Backbone
3300 153 184 86 AUCS Communications Services
6830 137 513 27 UPC Distribution Services
25186 136 137 96 France Telecom Transpac's Tra
1273 131 171 95 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 372 600 151 UniNet S.A. de C.V.
16814 266 16 7 NSS, S.A.
11172 218 98 53 Servicios Alestra S.A de C.V
6147 180 102 20 Telefonica Del Peru
11664 157 19 22 Keytech SA
7303 148 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.
19632 119 14 5 Metropolis Intercom S.A.
13999 113 52 9 Mega Cable S.A. de C.V.
11556 111 55 7 Cable-Wireless Panama
18822 105 7 15 TELEFONICA MANQUEHUE
6503 103 146 73 AVANTEL, S.A.
10481 101 40 7 Prima S.A.
19169 100 6 17 Telconet
22927 97 73 25 TELEFONICA DE ARGENTINA
23216 94 24 23 RAMtelecom Telecomunicaciones
21826 92 12 18 INTERCABLE
11311 89 8 18 Sinectis S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 637 224 The Internet Solution
5536 119 15 17 Internet Egypt Network
2018 92 295 86 Tertiary Education Network
20928 92 16 2 Noor Advanced Technologies AS
8452 81 28 6 TEDATA
2905 74 266 68 The Internetworking Company o
24835 63 34 6 RAYA Telecom - Egypt
6713 59 54 8 Itissalat Al-MAGHRIB
9129 44 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 24 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
33765 19 3 8 TANZANIA TELECOMMUNICATIONS C
7460 17 3 5 LIA Internet Access
12258 17 3 11 Vodacom Internet Company
21491 17 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1113 897 Time Warner Telecom
18566 812 805 Covad Communications
721 1114 802 DLA Systems Automation Center
4134 907 720 CHINANET-BACKBONE
9583 731 650 Sify Limited
27364 565 547 Armstrong Cable Services
4755 605 480 Videsh Sanchar Nigam Ltd. Aut
22773 485 465 Cox Communications, Inc.
5668 487 462 CenturyTel Internet Holdings,
6197 908 444 BellSouth Network Solutions,
7725 450 435 MediaOne
3602 524 425 Sprint Canada, Inc.
7545 484 413 TPG Internet Pty Ltd
6467 423 388 E.Spire Communications, Inc.
17676 432 358 Softbank BB Corp.
6140 410 333 ImpSat
9929 360 314 China Netcom Corp.
4766 589 312 Korea Telecom (KIX)
9443 370 294 Primus Telecommunications
20115 600 285 Charter Communications
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 200.61.32.0/23 11664 Keytech SA
64512 PRIVATE 200.61.48.0/20 11664 Keytech SA
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
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
172.122.28.0/24 210 Utah Education Network
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
/13:154 /14:306 /15:599 /16:8399 /17:2555 /18:4405
/19:10321 /20:11194 /21:9064 /22:12533 /23:13537 /24:88905
/25:289 /26:250 /27:138 /28:68 /29:39 /30:83
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 796 812 Covad Communications
6197 746 908 BellSouth Network Solutions,
7018 678 1486 AT&T WorldNet Services
2386 603 853 AT&T Data Communications Serv
27364 556 565 Armstrong Cable Services
9583 548 731 Sify Limited
4323 530 1113 Time Warner Telecom
7725 423 450 MediaOne
4766 406 589 Korea Telecom (KIX)
5668 402 487 CenturyTel Internet Holdings,
1239 377 894 Sprint
702 366 595 UUNET - Commercial IP service
6198 340 468 BellSouth Network Solutions,
10036 323 323 C&M Communication Co. Ltd.
7011 303 353 Citizens Utilities
6517 299 322 Yipes Communications, Inc.
6467 297 423 E.Spire Communications, Inc.
9929 281 360 China Netcom Corp.
11456 281 322 Carolina Online, Inc.
15270 273 293 PaeTec.net -a division of Pae
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 8:13 12:1549 13:1 15:9 16:2
17:3 18:4 20:4 24:1144 30:2 32:68
33:4 38:119 40:53 44:3 47:2 52:4
55:2 56:3 57:21 58:89 59:38 60:39
61:805 62:608 63:1883 64:2768 65:2063 66:2891
67:576 68:530 69:1030 70:108 71:10 72:197
80:571 81:547 82:413 83:262 84:176 85:203
86:16 128:176 129:172 130:83 131:279 132:35
133:1 134:150 135:40 136:188 137:69 138:169
139:59 140:194 141:105 142:149 143:145 144:186
145:33 146:282 147:106 148:296 149:165 150:97
151:65 152:106 153:86 154:5 155:143 156:78
157:95 158:161 159:171 160:94 161:72 162:205
163:88 164:205 165:174 166:156 167:234 168:424
169:140 170:316 171:8 172:2 192:5714 193:3151
194:2380 195:1567 196:656 198:3937 199:3286 200:3926
201:135 202:5610 203:6206 204:3835 205:1989 206:2475
207:2799 208:2049 209:3289 210:1680 211:827 212:1189
213:1287 214:263 215:31 216:3445 217:1136 218:200
219:107 220:372 221:220 222:103
End of report
