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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 15 May, 2005
Analysis Summary
----------------
BGP routing table entries examined: 162062
Prefixes after maximum aggregation: 94251
Unique aggregates announced to Internet: 78265
Total ASes present in the Internet Routing Table: 19645
Origin-only ASes present in the Internet Routing Table: 17086
Origin ASes announcing only one prefix: 8015
Transit ASes present in the Internet Routing Table: 2559
Transit-only ASes present in the Internet Routing Table: 69
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: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 33
Number of addresses announced to Internet: 1391518016
Equivalent to 82 /8s, 240 /16s and 225 /24s
Percentage of available address space announced: 37.5
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 76075
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 33168
Total APNIC prefixes after maximum aggregation: 15604
Prefixes being announced from the APNIC address blocks: 31109
Unique aggregates announced from the APNIC address blocks: 15840
APNIC Region origin ASes present in the Internet Routing Table: 2264
APNIC Region origin ASes announcing only one prefix: 662
APNIC Region transit ASes present in the Internet Routing Table: 339
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 182880640
Equivalent to 10 /8s, 230 /16s and 137 /24s
Percentage of available APNIC address space announced: 67.9
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: 87873
Total ARIN prefixes after maximum aggregation: 53584
Prefixes being announced from the ARIN address blocks: 68585
Unique aggregates announced from the ARIN address blocks: 25170
ARIN Region origin ASes present in the Internet Routing Table: 9927
ARIN Region origin ASes announcing only one prefix: 3616
ARIN Region transit ASes present in the Internet Routing Table: 941
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 247991040
Equivalent to 14 /8s, 200 /16s and 11 /24s
Percentage of available ARIN address space announced: 70.4
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: 30794
Total RIPE prefixes after maximum aggregation: 21278
Prefixes being announced from the RIPE address blocks: 27835
Unique aggregates announced from the RIPE address blocks: 18594
RIPE Region origin ASes present in the Internet Routing Table: 6648
RIPE Region origin ASes announcing only one prefix: 3506
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: 205005504
Equivalent to 12 /8s, 56 /16s and 34 /24s
Percentage of available RIPE address space announced: 71.9
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: 8632
Total LACNIC prefixes after maximum aggregation: 3020
Prefixes being announced from the LACNIC address blocks: 7053
Unique aggregates announced from the LACNIC address blocks: 4101
LACNIC Region origin ASes present in the Internet Routing Table: 618
LACNIC Region origin ASes announcing only one prefix: 195
LACNIC Region transit ASes present in the Internet Routing Table: 114
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 18752256
Equivalent to 1 /8s, 30 /16s and 35 /24s
Percentage of available LACNIC address space announced: 55.9
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: 1582
Total AfriNIC prefixes after maximum aggregation: 765
Prefixes being announced from the AfriNIC address blocks: 968
Unique aggregates announced from the AfriNIC address blocks: 771
AfriNIC Region origin ASes present in the Internet Routing Table: 124
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: 13
Number of AfriNIC addresses announced to Internet: 2271744
Equivalent to 0 /8s, 34 /16s and 170 /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 5137 186 CHINANET-BACKBONE
1221 754 1181 543 Telstra Pty Ltd
9583 735 54 75 Sify Limited
4766 591 3413 279 Korea Telecom (KIX)
4755 590 244 123 Videsh Sanchar Nigam Ltd. Aut
7545 493 86 70 TPG Internet Pty Ltd
17676 431 6509 73 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 360 197 46 China Netcom Corp.
2907 345 1838 319 SINET Japan
10036 317 29 286 C&M Communication Co. Ltd.
17557 312 22 149 Pakistan Telecom
4808 309 251 169 CNCGROUP IP network: China169
7474 304 270 209 SingTel Optus Pty Ltd
9498 296 83 59 BHARTI BT INTERNET LTD.
4802 281 47 166 Wantree Development
17974 258 65 14 PT TELEKOMUNIKASI INDONESIA
703 255 277 210 UUNET - Commercial IP service
2764 252 238 197 AAPT Limited
18302 251 75 139 SK Global co., Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1484 6470 950 AT&T WorldNet Services
174 1176 5611 1006 Cogent Communications
721 1114 21755 312 DLA Systems Automation Center
4323 1106 648 218 Time Warner Telecom
701 1007 8233 857 UUNET Technologies, Inc.
6197 904 378 460 BellSouth Network Solutions,
1239 899 2869 652 Sprint
2386 854 533 633 AT&T Data Communications Serv
18566 807 224 7 Covad Communications
209 652 3519 492 Qwest
20115 594 503 312 Charter Communications
3356 578 10833 436 Level 3 Communications, LLC
27364 565 43 18 Armstrong Cable Services
3561 533 2398 417 Savvis
852 531 1095 391 Telus Advanced Communications
3602 513 122 97 Sprint Canada, Inc.
5668 487 115 25 CenturyTel Internet Holdings,
22773 483 1188 21 Cox Communications, Inc.
6198 464 382 219 BellSouth Network Solutions,
7725 450 60 15 MediaOne
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 593 2001 486 UUNET - Commercial IP service
3320 303 3233 237 Deutsche Telekom AG
3301 292 1084 281 TeliaNet Sweden
8220 272 469 266 COLT Telecommunications
680 253 2041 238 DFN-IP service G-WiN
3246 232 491 227 Song Networks
8708 229 252 212 Romania Data Systems S.A.
1257 200 728 176 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 165 47 144 Dynamic Network Technologies,
8866 164 21 11 Bulgarian Telecommunication C
3269 163 1486 68 TELECOM ITALIA
5400 161 285 135 BT Ignite European Backbone
719 159 340 101 LANLINK autonomous system
3300 154 184 87 AUCS Communications Services
25186 138 137 98 France Telecom Transpac's Tra
6830 137 513 27 UPC Distribution Services
9051 128 8 34 INCONET Autonomous System
2856 127 2304 115 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 373 598 147 UniNet S.A. de C.V.
16814 266 16 7 NSS, S.A.
11172 217 98 53 Servicios Alestra S.A de C.V
6147 177 102 20 Telefonica Del Peru
11664 156 19 22 Keytech SA
7303 148 68 21 Telecom Argentina Stet-France
14117 136 9 5 Telefonica del Sur S.A.
6505 131 90 88 Global One Communicaoes Ltda
22047 131 96 6 VTR PUNTO NET S.A.
19632 119 14 5 Metropolis Intercom S.A.
11556 111 55 7 Cable-Wireless Panama
13999 110 52 9 Mega Cable S.A. de C.V.
18822 105 7 15 TELEFONICA MANQUEHUE
6503 103 146 73 AVANTEL, S.A.
10481 101 40 7 Prima S.A.
19169 99 6 16 Telconet
21826 92 12 18 INTERCABLE
22927 92 65 22 TELEFONICA DE ARGENTINA
11311 89 8 18 Sinectis S.A.
23216 89 24 23 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 270 637 225 The Internet Solution
5536 119 15 17 Internet Egypt Network
20928 93 16 2 Noor Advanced Technologies AS
2018 90 295 86 Tertiary Education Network
2905 74 266 68 The Internetworking Company o
8452 71 28 6 TEDATA
24835 63 34 6 RAYA Telecom - Egypt
9129 44 3 3 UUNET Kenya
12455 39 6 3 Jambonet Autonomous system
5713 36 142 29 Telkom SA Ltd
6713 35 54 9 Itissalat Al-MAGHRIB
15706 31 8 3 Sudatel Internet Exchange Aut
8524 25 1 4 AUCEGYPT Autonomous System
15475 24 84 4 Nile Online
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
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
33765 17 3 8 TANZANIA TELECOMMUNICATIONS C
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1106 888 Time Warner Telecom
721 1114 802 DLA Systems Automation Center
18566 807 800 Covad Communications
4134 907 721 CHINANET-BACKBONE
9583 735 660 Sify Limited
27364 565 547 Armstrong Cable Services
4755 590 467 Videsh Sanchar Nigam Ltd. Aut
5668 487 462 CenturyTel Internet Holdings,
22773 483 462 Cox Communications, Inc.
6197 904 444 BellSouth Network Solutions,
7725 450 435 MediaOne
7545 493 423 TPG Internet Pty Ltd
3602 513 416 Sprint Canada, Inc.
6467 420 385 E.Spire Communications, Inc.
17676 431 358 Softbank BB Corp.
6140 405 330 ImpSat
9929 360 314 China Netcom Corp.
4766 591 312 Korea Telecom (KIX)
9443 370 294 Primus Telecommunications
6478 415 289 AT&T Worldnet Services
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
13660 UNALLOCATED 63.119.114.0/24 701 UUNET Technologies,
65050 PRIVATE 168.96.148.0/24 6140 ImpSat
65008 PRIVATE 192.160.172.0/24 2012 ELTENET
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
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
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
172.1.0.0/16 12956 Telefonica Data Autonomous Sy
172.2.0.0/16 12956 Telefonica Data Autonomous Sy
172.3.0.0/16 12956 Telefonica Data Autonomous Sy
172.4.0.0/16 12956 Telefonica Data Autonomous Sy
172.5.0.0/16 12956 Telefonica Data Autonomous Sy
172.6.0.0/16 12956 Telefonica Data Autonomous Sy
172.7.0.0/16 12956 Telefonica Data Autonomous Sy
172.8.0.0/16 12956 Telefonica Data Autonomous Sy
172.9.0.0/16 12956 Telefonica Data Autonomous Sy
172.10.0.0/16 12956 Telefonica Data Autonomous Sy
172.11.0.0/16 12956 Telefonica Data Autonomous Sy
172.12.0.0/16 12956 Telefonica Data Autonomous Sy
172.13.0.0/16 12956 Telefonica Data Autonomous Sy
172.14.0.0/16 12956 Telefonica Data Autonomous Sy
172.15.0.0/16 12956 Telefonica Data Autonomous Sy
172.32.0.0/24 7011 Citizens Utilities
172.50.0.0/16 12956 Telefonica Data Autonomous Sy
172.51.0.0/16 12956 Telefonica Data Autonomous Sy
172.52.0.0/16 12956 Telefonica Data Autonomous Sy
172.74.0.0/16 12956 Telefonica Data Autonomous Sy
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 /8:18 /9:3 /10:8 /11:15 /12:70
/13:156 /14:306 /15:599 /16:8406 /17:2549 /18:4378
/19:10300 /20:11112 /21:9014 /22:12462 /23:13427 /24:88374
/25:281 /26:242 /27:138 /28:65 /29:38 /30:71
/31:0 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 791 807 Covad Communications
6197 743 904 BellSouth Network Solutions,
7018 678 1484 AT&T WorldNet Services
2386 604 854 AT&T Data Communications Serv
27364 556 565 Armstrong Cable Services
9583 551 735 Sify Limited
4323 524 1106 Time Warner Telecom
7725 423 450 MediaOne
4766 408 591 Korea Telecom (KIX)
5668 402 487 CenturyTel Internet Holdings,
1239 377 899 Sprint
702 366 593 UUNET - Commercial IP service
6198 341 464 BellSouth Network Solutions,
10036 317 317 C&M Communication Co. Ltd.
6467 301 420 E.Spire Communications, Inc.
6517 299 322 Yipes Communications, Inc.
7011 298 348 Citizens Utilities
9929 281 360 China Netcom Corp.
11456 281 322 Carolina Online, Inc.
701 259 1007 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:13 12:1530 13:1 15:9 16:2
17:3 18:4 20:4 24:1126 30:2 32:69
33:4 38:114 40:53 44:3 47:2 52:4
55:2 56:3 57:21 58:47 59:32 60:34
61:790 62:609 63:1882 64:2714 65:2069 66:2848
67:576 68:528 69:1015 70:105 71:6 72:174
80:570 81:550 82:405 83:265 84:184 85:198
86:13 128:150 129:175 130:82 131:277 132:35
133:1 134:149 135:40 136:189 137:65 138:167
139:57 140:191 141:105 142:154 143:142 144:182
145:33 146:281 147:106 148:291 149:164 150:97
151:65 152:106 153:86 154:5 155:144 156:78
157:92 158:160 159:174 160:77 161:65 162:203
163:84 164:207 165:174 166:157 167:233 168:419
169:139 170:313 171:8 172:2 192:5711 193:3183
194:2363 195:1556 196:651 198:3922 199:3249 200:3895
201:131 202:5575 203:6186 204:3819 205:2017 206:2472
207:2787 208:2055 209:3289 210:1687 211:829 212:1144
213:1282 214:266 215:31 216:3439 217:1131 218:198
219:105 220:375 221:214 222:102
End of report
