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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 16 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 178232
Prefixes after maximum aggregation: 100134
Unique aggregates announced to Internet: 86756
Total ASes present in the Internet Routing Table: 21318
Origin-only ASes present in the Internet Routing Table: 18542
Origin ASes announcing only one prefix: 8788
Transit ASes present in the Internet Routing Table: 2776
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: 25
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1479355328
Equivalent to 88 /8s, 45 /16s and 43 /24s
Percentage of available address space announced: 39.9
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 86107
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37432
Total APNIC prefixes after maximum aggregation: 15860
Prefixes being announced from the APNIC address blocks: 35228
Unique aggregates announced from the APNIC address blocks: 17264
APNIC Region origin ASes present in the Internet Routing Table: 2458
APNIC Region origin ASes announcing only one prefix: 691
APNIC Region transit ASes present in the Internet Routing Table: 377
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 210423232
Equivalent to 12 /8s, 138 /16s and 205 /24s
Percentage of available APNIC address space announced: 65.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 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: 93710
Total ARIN prefixes after maximum aggregation: 56325
Prefixes being announced from the ARIN address blocks: 73087
Unique aggregates announced from the ARIN address blocks: 28062
ARIN Region origin ASes present in the Internet Routing Table: 10430
ARIN Region origin ASes announcing only one prefix: 3880
ARIN Region transit ASes present in the Internet Routing Table: 966
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 282303744
Equivalent to 16 /8s, 211 /16s and 157 /24s
Percentage of available ARIN address space announced: 70.1
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, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 35110
Total RIPE prefixes after maximum aggregation: 23682
Prefixes being announced from the RIPE address blocks: 32096
Unique aggregates announced from the RIPE address blocks: 21443
RIPE Region origin ASes present in the Internet Routing Table: 7552
RIPE Region origin ASes announcing only one prefix: 3958
RIPE Region transit ASes present in the Internet Routing Table: 1246
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 229642112
Equivalent to 13 /8s, 176 /16s and 15 /24s
Percentage of available RIPE address space announced: 68.4
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, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 10135
Total LACNIC prefixes after maximum aggregation: 3412
Prefixes being announced from the LACNIC address blocks: 8319
Unique aggregates announced from the LACNIC address blocks: 4796
LACNIC Region origin ASes present in the Internet Routing Table: 662
LACNIC Region origin ASes announcing only one prefix: 215
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 23627264
Equivalent to 1 /8s, 104 /16s and 134 /24s
Percentage of available LACNIC address space announced: 35.2
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 1839
Total AfriNIC prefixes after maximum aggregation: 855
Prefixes being announced from the AfriNIC address blocks: 1196
Unique aggregates announced from the AfriNIC address blocks: 842
AfriNIC Region origin ASes present in the Internet Routing Table: 143
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2968576
Equivalent to 0 /8s, 45 /16s and 76 /24s
Percentage of available AfriNIC address space announced: 8.8
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 995 6450 206 CHINANET-BACKBONE
9583 837 109 14 Sify Limited
4755 779 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 717 3929 300 Korea Telecom (KIX)
1221 668 1364 474 Telstra Pty Ltd
7545 513 108 69 TPG Internet Pty Ltd
9498 495 211 68 BHARTI BT INTERNET LTD.
17676 477 6901 102 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9443 399 89 85 Primus Telecommunications
4802 355 74 160 Wantree Development
2907 338 1763 315 SINET Japan
9929 333 217 50 China Netcom Corp.
7474 329 227 227 SingTel Optus Pty Ltd
18101 326 68 23 Reliance Infocom Ltd Internet
17974 314 73 36 PT TELEKOMUNIKASI INDONESIA
17557 307 24 159 Pakistan Telecom
4780 283 226 16 Digital United Inc.
9837 271 78 169 Powertel Ltd
9800 256 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6297 960 AT&T WorldNet Services
4323 1202 723 235 Time Warner Telecom
174 1042 5825 959 Cogent Communications
721 1031 21938 308 DLA Systems Automation Center
6197 969 436 505 BellSouth Network Solutions,
701 964 8099 810 UUNET Technologies, Inc.
18566 891 272 8 Covad Communications
2386 876 500 684 AT&T Data Communications Serv
1239 850 2805 606 Sprint
20115 658 537 340 Charter Communications
209 655 3603 523 Qwest
11492 642 89 12 Cable One
22773 607 1478 33 Cox Communications, Inc.
19262 595 1703 145 Verizon Global Networks
852 570 1092 379 Telus Advanced Communications
855 563 243 65 Canadian Research Network
19916 563 49 54 OLM LLC
6478 529 1455 292 AT&T Worldnet Services
3602 521 127 106 Sprint Canada, Inc.
3356 518 10601 398 Level 3 Communications, LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 586 1953 464 UUNET - Commercial IP service
3352 303 1500 34 Ibernet, Internet Access Netw
3301 302 1071 288 TeliaNet Sweden
3320 285 3485 239 Deutsche Telekom AG
8220 273 474 267 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 227 487 217 Song Networks
8708 222 274 206 Romania Data Systems S.A.
6746 211 52 183 Dynamic Network Technologies,
1257 189 712 169 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 173 37 11 Bulgarian Telecommunication C
5400 167 328 137 BT Ignite European Backbone
24863 166 38 9 LINKdotNET AS number
3215 163 1326 82 France Telecom Transpac
6830 162 669 33 UPC Distribution Services
3300 160 169 91 AUCS Communications Services
12479 157 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 541 808 209 UniNet S.A. de C.V.
22047 380 141 43 VTR PUNTO NET S.A.
11172 295 109 75 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
14117 184 11 6 Telefonica del Sur S.A.
13999 175 52 9 Mega Cable S.A. de C.V.
7303 153 73 18 Telecom Argentina Stet-France
6147 150 118 21 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
10481 121 48 8 Prima S.A.
19169 119 7 37 Telconet
6503 115 148 76 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 108 88 80 Global One Communicaoes Ltda
11311 101 8 14 Sinectis S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
14522 95 12 8 SatNet S.A.
19429 93 50 47 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 273 812 230 The Internet Solution
8452 147 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 101 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
24835 68 34 6 RAYA Telecom - Egypt
20928 61 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 34 4 25 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
16637 22 10 20 Johnnic e-Ventures
21280 22 4 4 Swift Global Kenya Ltd.Is an
12455 18 6 5 Jambonet Autonomous system
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1202 967 Time Warner Telecom
18566 891 883 Covad Communications
9583 837 823 Sify Limited
4134 995 789 CHINANET-BACKBONE
721 1031 723 DLA Systems Automation Center
4755 779 715 Videsh Sanchar Nigam Ltd. Aut
11492 642 630 Cable One
22773 607 574 Cox Communications, Inc.
19916 563 509 OLM LLC
855 563 498 Canadian Research Network
5668 514 490 CenturyTel Internet Holdings,
6197 969 464 BellSouth Network Solutions,
19262 595 450 Verizon Global Networks
7545 513 444 TPG Internet Pty Ltd
9498 495 427 BHARTI BT INTERNET LTD.
17488 436 427 Hathway IP Over Cable Interne
4766 717 417 Korea Telecom (KIX)
3602 521 415 Sprint Canada, Inc.
17676 477 375 Softbank BB Corp.
6467 397 353 E.Spire Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
38976 UNALLOCATED 62.192.232.0/24 21166 Satgate autonomous s
38972 UNALLOCATED 80.251.144.0/21 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.151.0/24 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.152.0/23 6828 Ekaterinburg Telegra
29544 UNALLOCATED 82.151.64.0/19 12956 Telefonica Data Auto
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
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:5 /10:8 /11:20 /12:87
/13:196 /14:345 /15:675 /16:8642 /17:2952 /18:4969
/19:11196 /20:12344 /21:10552 /22:13635 /23:14833 /24:96838
/25:296 /26:240 /27:197 /28:63 /29:25 /30:54
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 874 891 Covad Communications
6197 782 969 BellSouth Network Solutions,
7018 746 1474 AT&T WorldNet Services
9583 658 837 Sify Limited
11492 633 642 Cable One
2386 610 876 AT&T Data Communications Serv
4323 577 1202 Time Warner Telecom
19916 557 563 OLM LLC
4766 517 717 Korea Telecom (KIX)
855 435 563 Canadian Research Network
5668 403 514 CenturyTel Internet Holdings,
7011 399 465 Citizens Utilities
702 370 586 UUNET - Commercial IP service
1239 363 850 Sprint
6198 357 492 BellSouth Network Solutions,
6517 335 362 Yipes Communications, Inc.
15270 332 359 PaeTec.net -a division of Pae
22773 314 607 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
701 275 964 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1628 13:1 15:11 16:3
17:3 18:4 20:42 24:719 25:1 32:67
38:187 40:54 44:3 47:3 52:4 55:1
56:3 57:34 58:114 59:156 60:179 61:817
62:775 63:1881 64:2944 65:2154 66:2983 67:587
68:696 69:1372 70:272 71:47 72:567 73:19
80:727 81:593 82:506 83:352 84:341 85:423
86:263 87:133 88:17 89:2 124:1 125:176
128:149 129:172 130:102 131:310 132:34 133:7
134:151 135:46 136:169 137:65 138:178 139:89
140:446 141:136 142:404 143:144 144:229 145:39
146:306 147:134 148:326 149:187 150:112 151:72
152:115 153:98 154:6 155:184 156:91 157:118
158:151 159:174 160:87 161:68 162:249 163:175
164:168 165:168 166:147 167:238 168:477 169:138
170:306 171:12 192:5743 193:3351 194:2457 195:1718
196:721 198:3896 199:3277 200:4153 201:548 202:6383
203:6686 204:3818 205:2081 206:2424 207:2921 208:2015
209:3455 210:1840 211:794 212:1246 213:1427 214:318
215:40 216:3797 217:1152 218:231 219:135 220:642
221:334 222:146
End of report
