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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 12 Apr, 2005
Analysis Summary
----------------
BGP routing table entries examined: 159521
Prefixes after maximum aggregation: 92922
Unique aggregates announced to Internet: 76730
Total ASes present in the Internet Routing Table: 19351
Origin-only ASes present in the Internet Routing Table: 16836
Origin ASes announcing only one prefix: 7864
Transit ASes present in the Internet Routing Table: 2515
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: 47
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1380297600
Equivalent to 82 /8s, 69 /16s and 171 /24s
Percentage of available address space announced: 37.2
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 63.7
Total number of prefixes smaller than registry allocations: 74423
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 32500
Total APNIC prefixes after maximum aggregation: 15374
Prefixes being announced from the APNIC address blocks: 30428
Unique aggregates announced from the APNIC address blocks: 15364
APNIC Region origin ASes present in the Internet Routing Table: 2257
APNIC Region origin ASes announcing only one prefix: 657
APNIC Region transit ASes present in the Internet Routing Table: 340
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 181292160
Equivalent to 10 /8s, 206 /16s and 76 /24s
Percentage of available APNIC address space announced: 67.3
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: 86692
Total ARIN prefixes after maximum aggregation: 52901
Prefixes being announced from the ARIN address blocks: 67614
Unique aggregates announced from the ARIN address blocks: 24846
ARIN Region origin ASes present in the Internet Routing Table: 9811
ARIN Region origin ASes announcing only one prefix: 3546
ARIN Region transit ASes present in the Internet Routing Table: 923
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 244047872
Equivalent to 14 /8s, 139 /16s and 224 /24s
Percentage of available ARIN address space announced: 69.3
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
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: 30274
Total RIPE prefixes after maximum aggregation: 20952
Prefixes being announced from the RIPE address blocks: 27305
Unique aggregates announced from the RIPE address blocks: 18203
RIPE Region origin ASes present in the Internet Routing Table: 6519
RIPE Region origin ASes announcing only one prefix: 3442
RIPE Region transit ASes present in the Internet Routing Table: 1092
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 200962752
Equivalent to 11 /8s, 250 /16s and 114 /24s
Percentage of available RIPE address space announced: 70.5
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: 8575
Total LACNIC prefixes after maximum aggregation: 2997
Prefixes being announced from the LACNIC address blocks: 6985
Unique aggregates announced from the LACNIC address blocks: 4019
LACNIC Region origin ASes present in the Internet Routing Table: 613
LACNIC Region origin ASes announcing only one prefix: 192
LACNIC Region transit ASes present in the Internet Routing Table: 115
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 18049792
Equivalent to 1 /8s, 19 /16s and 107 /24s
Percentage of available LACNIC address space announced: 53.8
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: 1429
Total AfriNIC prefixes after maximum aggregation: 698
Prefixes being announced from the AfriNIC address blocks: 916
Unique aggregates announced from the AfriNIC address blocks: 734
AfriNIC Region origin ASes present in the Internet Routing Table: 100
AfriNIC Region origin ASes announcing only one prefix: 27
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2194944
Equivalent to 0 /8s, 33 /16s and 126 /24s
Percentage of available AfriNIC address space announced: 13.1
AfriNIC AS Blocks ERX transfers
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 899 4835 179 CHINANET-BACKBONE
1221 779 1193 554 Telstra Pty Ltd
9583 702 52 46 Sify Limited
4766 586 3415 275 Korea Telecom (KIX)
4755 543 243 111 Videsh Sanchar Nigam Ltd. Aut
7545 437 85 65 TPG Internet Pty Ltd
17676 428 6476 73 Softbank BB Corp.
9443 370 77 76 Primus Telecommunications
9929 358 175 45 China Netcom Corp.
2907 347 1838 321 SINET Japan
17557 335 24 153 Pakistan Telecom
10036 311 28 283 C&M Communication Co. Ltd.
4808 303 250 165 CNCGROUP IP network: China169
7474 295 268 213 SingTel Optus Pty Ltd
4802 279 47 164 Wantree Development
2764 261 238 199 AAPT Limited
9498 261 82 53 BHARTI BT INTERNET LTD.
703 256 279 210 UUNET - Commercial IP service
9800 238 386 69 CHINA UNICOM
17974 238 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1471 6530 963 AT&T WorldNet Services
721 1118 21747 313 DLA Systems Automation Center
4323 1092 663 220 Time Warner Telecom
174 1082 5584 920 Cogent Communications
701 1009 8281 858 UUNET Technologies, Inc.
1239 914 2877 661 Sprint
6197 886 384 414 BellSouth Network Solutions,
2386 842 532 623 AT&T Data Communications Serv
18566 788 224 7 Covad Communications
209 646 3475 500 Qwest
20115 600 496 311 Charter Communications
3356 585 10852 434 Level 3 Communications, LLC
3561 542 2370 415 Savvis
852 538 1095 397 Telus Advanced Communications
3602 508 121 93 Sprint Canada, Inc.
27364 504 43 18 Armstrong Cable Services
5668 484 115 25 CenturyTel Internet Holdings,
22773 475 1188 21 Cox Communications, Inc.
6198 458 380 215 BellSouth Network Solutions,
6467 444 143 35 E.Spire Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 598 2003 489 UUNET - Commercial IP service
3320 303 2993 237 Deutsche Telekom AG
3301 298 1117 288 TeliaNet Sweden
8220 276 468 269 COLT Telecommunications
680 253 2041 238 DFN-IP service G-WiN
3246 231 475 226 Song Networks
8708 227 251 208 Romania Data Systems S.A.
1257 200 696 176 SWIPnet Swedish IP Network
5515 178 778 128 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3269 167 1472 73 TELECOM ITALIA
8866 166 21 12 Bulgarian Telecommunication C
6746 161 47 141 Dynamic Network Technologies,
719 157 322 99 LANLINK autonomous system
3300 152 184 85 AUCS Communications Services
5400 143 281 127 BT Ignite European Backbone
25186 139 137 97 France Telecom Transpac's Tra
6830 137 513 27 UPC Distribution Services
9051 128 8 34 INCONET Autonomous System
2856 127 2305 115 BTnet UK Regional network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 350 529 146 UniNet S.A. de C.V.
16814 266 16 7 NSS, S.A.
11172 217 99 53 Servicios Alestra S.A de C.V
6147 205 102 20 Telefonica Del Peru
19632 190 14 7 Metropolis Intercom S.A.
7303 156 68 25 Telecom Argentina Stet-France
11664 154 19 23 Keytech SA
6505 131 90 88 Global One Communicaoes Ltda
22047 122 96 6 VTR PUNTO NET S.A.
14117 119 8 4 Telefonica del Sur S.A.
6503 108 147 75 AVANTEL, S.A.
13999 103 52 9 Mega Cable S.A. de C.V.
18822 103 6 15 TELEFONICA MANQUEHUE
11556 99 49 5 Cable-Wireless Panama
19169 95 6 16 Telconet
23216 89 24 23 RAMtelecom Telecomunicaciones
11311 85 8 21 Sinectis S.A.
5639 84 12 9 Telecommunications Services o
10481 82 32 7 Prima S.A.
4270 79 18 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 635 225 The Internet Solution
5536 121 15 14 Internet Egypt Network
2018 90 295 87 Tertiary Education Network
20928 90 16 2 Noor Advanced Technologies AS
2905 74 266 68 The Internetworking Company o
8452 64 20 5 TEDATA
24835 59 34 6 RAYA Telecom - Egypt
9129 42 3 3 UUNET Kenya
12455 42 7 5 Jambonet Autonomous system
5713 35 141 28 Telkom SA Ltd
6713 35 54 9 Itissalat Al-MAGHRIB
8524 24 1 4 AUCEGYPT Autonomous System
15475 22 84 4 Nile Online
16637 22 10 19 Johnnic e-Ventures
10798 19 1 11 Standard Bank of South Africa
7460 18 3 5 LIA Internet Access
21280 18 2 3 Swift Global Kenya Ltd.Is an
12258 17 3 11 Vodacom Internet Company
15808 16 1 1 Communication Solutions Ltd i
21491 16 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
0 0 65531 *
4323 1092 872 Time Warner Telecom
721 1118 805 DLA Systems Automation Center
18566 788 781 Covad Communications
4134 899 720 CHINANET-BACKBONE
9583 702 656 Sify Limited
27364 504 486 Armstrong Cable Services
6197 886 472 BellSouth Network Solutions,
5668 484 459 CenturyTel Internet Holdings,
22773 475 454 Cox Communications, Inc.
4755 543 432 Videsh Sanchar Nigam Ltd. Aut
3602 508 415 Sprint Canada, Inc.
6467 444 409 E.Spire Communications, Inc.
7545 437 372 TPG Internet Pty Ltd
17676 428 355 Softbank BB Corp.
6140 395 324 ImpSat
9929 358 313 China Netcom Corp.
4766 586 311 Korea Telecom (KIX)
9443 370 294 Primus Telecommunications
20115 600 289 Charter Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
35899 UNALLOCATED 12.19.70.0/24 7018 AT&T WorldNet Servic
35864 UNALLOCATED 38.117.202.0/24 174 Cogent Communication
35884 UNALLOCATED 38.118.171.0/24 10912 InterNAP Network Ser
35894 UNALLOCATED 63.118.207.0/24 6128 Cablevision Systems
35884 UNALLOCATED 64.74.164.0/24 10912 InterNAP Network Ser
35884 UNALLOCATED 64.74.165.0/24 10912 InterNAP Network Ser
35884 UNALLOCATED 64.74.166.0/24 10912 InterNAP Network Ser
35884 UNALLOCATED 64.74.167.0/24 10912 InterNAP Network Ser
35892 UNALLOCATED 64.124.52.0/24 6461 AboveNet Communicati
35892 UNALLOCATED 64.125.105.0/24 6461 AboveNet Communicati
35892 UNALLOCATED 64.125.106.0/24 6461 AboveNet Communicati
35892 UNALLOCATED 64.125.110.0/24 6461 AboveNet Communicati
35890 UNALLOCATED 64.193.55.0/24 209 Qwest
35868 UNALLOCATED 65.88.163.192/26 6395 Broadwing Communicat
35871 UNALLOCATED 66.7.178.0/23 6517 Yipes Communications
35868 UNALLOCATED 68.143.179.64/26 6395 Broadwing Communicat
35895 UNALLOCATED 72.5.143.0/24 10910 InterNAP Network Ser
65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK
30999 UNALLOCATED 196.192.80.0/24 6774 BELGACOM
35857 UNALLOCATED 199.107.188.0/24 4323 Time Warner Telecom
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
65056 PRIVATE 200.47.114.0/23 11664 Keytech SA
35875 UNALLOCATED 204.117.76.0/24 1239 Sprint
35866 UNALLOCATED 206.13.80.0/24 7132 SBC Internet Service
35849 UNALLOCATED 206.170.102.0/24 174 Cogent Communication
35892 UNALLOCATED 208.184.1.0/24 6461 AboveNet Communicati
35850 UNALLOCATED 209.139.6.0/24 3356 Level 3 Communicatio
35850 UNALLOCATED 209.139.22.0/23 3356 Level 3 Communicatio
35850 UNALLOCATED 209.139.56.0/22 3356 Level 3 Communicatio
35850 UNALLOCATED 209.139.108.0/23 3356 Level 3 Communicatio
35850 UNALLOCATED 209.139.110.0/24 3356 Level 3 Communicatio
35850 UNALLOCATED 209.139.180.0/24 3356 Level 3 Communicatio
35892 UNALLOCATED 209.249.93.0/24 6461 AboveNet Communicati
35892 UNALLOCATED 209.249.94.0/24 6461 AboveNet Communicati
35892 UNALLOCATED 209.249.95.0/24 6461 AboveNet Communicati
65444 PRIVATE 212.25.125.0/24 8551 Bezeq International
35892 UNALLOCATED 216.14.0.0/19 6461 AboveNet Communicati
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
35892 UNALLOCATED 216.200.243.0/24 6461 AboveNet Communicati
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 /8:18 /9:3 /10:8 /11:15 /12:67
/13:152 /14:307 /15:576 /16:8347 /17:2511 /18:4300
/19:10183 /20:10888 /21:8752 /22:12087 /23:13186 /24:87223
/25:284 /26:269 /27:141 /28:72 /29:35 /30:66
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 772 788 Covad Communications
6197 727 886 BellSouth Network Solutions,
7018 654 1471 AT&T WorldNet Services
2386 597 842 AT&T Data Communications Serv
9583 521 702 Sify Limited
4323 509 1092 Time Warner Telecom
27364 491 504 Armstrong Cable Services
5668 404 484 CenturyTel Internet Holdings,
4766 402 586 Korea Telecom (KIX)
1239 380 914 Sprint
702 365 598 UUNET - Commercial IP service
6198 336 458 BellSouth Network Solutions,
6467 323 444 E.Spire Communications, Inc.
10036 311 311 C&M Communication Co. Ltd.
6517 290 313 Yipes Communications, Inc.
9929 282 358 China Netcom Corp.
7011 280 329 Citizens Utilities
11456 268 315 Carolina Online, Inc.
15270 252 272 PaeTec.net -a division of Pae
3320 248 303 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:11 10:6 12:1518 13:1 15:9
16:2 17:3 18:4 20:4 24:793 28:2
31:1 32:63 33:4 38:106 40:53 44:8
47:2 50:1 52:12 54:1 55:3 56:3
57:23 58:37 59:23 60:19 61:736 62:578
63:1881 64:2655 65:2078 66:2738 67:519 68:512
69:962 70:83 71:6 72:131 80:544 81:530
82:375 83:246 84:147 85:158 128:139 129:157
130:89 131:280 132:34 133:1 134:145 135:41
136:191 137:66 138:175 139:56 140:192 141:106
142:137 143:130 144:171 145:32 146:280 147:102
148:296 149:170 150:98 151:63 152:107 153:87
154:4 155:144 156:69 157:89 158:167 159:172
160:73 161:60 162:200 163:87 164:204 165:160
166:154 167:229 168:416 169:137 170:312 171:8
172:2 192:5682 193:3146 194:2325 195:1539 196:642
198:3932 199:3276 200:4007 201:114 202:5471 203:6123
204:3816 205:2015 206:2441 207:2725 208:2079 209:3276
210:1689 211:818 212:1180 213:1267 214:273 215:31
216:3694 217:1158 218:186 219:104 220:371 221:168
222:76
End of report
