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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 20 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 178922
Prefixes after maximum aggregation: 100287
Unique aggregates announced to Internet: 87027
Total ASes present in the Internet Routing Table: 21328
Origin-only ASes present in the Internet Routing Table: 18542
Origin ASes announcing only one prefix: 8773
Transit ASes present in the Internet Routing Table: 2786
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: 27
Prefixes from unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1481466624
Equivalent to 88 /8s, 77 /16s and 99 /24s
Percentage of available address space announced: 40.0
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 86497
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37536
Total APNIC prefixes after maximum aggregation: 15882
Prefixes being announced from the APNIC address blocks: 35323
Unique aggregates announced from the APNIC address blocks: 17306
APNIC Region origin ASes present in the Internet Routing Table: 2458
APNIC Region origin ASes announcing only one prefix: 693
APNIC Region transit ASes present in the Internet Routing Table: 376
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 210682560
Equivalent to 12 /8s, 142 /16s and 194 /24s
Percentage of available APNIC address space announced: 65.9
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: 94132
Total ARIN prefixes after maximum aggregation: 56384
Prefixes being announced from the ARIN address blocks: 73422
Unique aggregates announced from the ARIN address blocks: 28106
ARIN Region origin ASes present in the Internet Routing Table: 10453
ARIN Region origin ASes announcing only one prefix: 3881
ARIN Region transit ASes present in the Internet Routing Table: 972
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 282601984
Equivalent to 16 /8s, 216 /16s and 42 /24s
Percentage of available ARIN address space announced: 70.2
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: 35199
Total RIPE prefixes after maximum aggregation: 23721
Prefixes being announced from the RIPE address blocks: 32162
Unique aggregates announced from the RIPE address blocks: 21545
RIPE Region origin ASes present in the Internet Routing Table: 7535
RIPE Region origin ASes announcing only one prefix: 3939
RIPE Region transit ASes present in the Internet Routing Table: 1248
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 229804416
Equivalent to 13 /8s, 178 /16s and 137 /24s
Percentage of available RIPE address space announced: 68.5
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, 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: 10227
Total LACNIC prefixes after maximum aggregation: 3432
Prefixes being announced from the LACNIC address blocks: 8405
Unique aggregates announced from the LACNIC address blocks: 5008
LACNIC Region origin ASes present in the Internet Routing Table: 666
LACNIC Region origin ASes announcing only one prefix: 216
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 24632832
Equivalent to 1 /8s, 119 /16s and 222 /24s
Percentage of available LACNIC address space announced: 36.7
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: 1821
Total AfriNIC prefixes after maximum aggregation: 868
Prefixes being announced from the AfriNIC address blocks: 1208
Unique aggregates announced from the AfriNIC address blocks: 855
AfriNIC Region origin ASes present in the Internet Routing Table: 144
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 3017472
Equivalent to 0 /8s, 46 /16s and 11 /24s
Percentage of available AfriNIC address space announced: 9.0
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 976 6450 206 CHINANET-BACKBONE
9583 840 109 15 Sify Limited
4755 788 258 63 Videsh Sanchar Nigam Ltd. Aut
4766 721 3929 303 Korea Telecom (KIX)
1221 671 1364 475 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
9498 507 211 69 BHARTI BT INTERNET LTD.
17676 477 6901 102 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9443 408 93 85 Primus Telecommunications
4802 361 74 156 Wantree Development
2907 338 1763 315 SINET Japan
9929 334 217 50 China Netcom Corp.
7474 330 227 228 SingTel Optus Pty Ltd
18101 326 68 23 Reliance Infocom Ltd Internet
17974 315 73 36 PT TELEKOMUNIKASI INDONESIA
17557 312 25 162 Pakistan Telecom
4780 282 226 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 1477 6297 961 AT&T WorldNet Services
4323 1204 723 235 Time Warner Telecom
174 1035 5805 952 Cogent Communications
721 1026 21922 307 DLA Systems Automation Center
6197 972 436 506 BellSouth Network Solutions,
701 969 8099 812 UUNET Technologies, Inc.
18566 891 272 8 Covad Communications
2386 878 501 686 AT&T Data Communications Serv
1239 853 2806 608 Sprint
20115 658 537 340 Charter Communications
209 655 3603 523 Qwest
11492 644 89 12 Cable One
22773 610 1478 33 Cox Communications, Inc.
19262 596 1703 146 Verizon Global Networks
855 571 243 65 Canadian Research Network
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
6478 529 1455 292 AT&T Worldnet Services
3602 520 127 106 Sprint Canada, Inc.
3356 518 10601 397 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 302 1500 34 Ibernet, Internet Access Netw
3301 301 1071 287 TeliaNet Sweden
3320 285 3485 239 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 228 487 218 Song Networks
8708 223 275 207 Romania Data Systems S.A.
6746 213 53 185 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 169 37 11 Bulgarian Telecommunication C
5400 167 328 137 BT Ignite European Backbone
3215 166 1350 81 France Telecom Transpac
24863 166 38 9 LINKdotNET AS number
6830 161 669 33 UPC Distribution Services
3300 160 170 91 AUCS Communications Services
12479 156 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 559 1048 211 UniNet S.A. de C.V.
22047 379 141 44 VTR PUNTO NET S.A.
11172 297 109 77 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
13999 191 52 13 Mega Cable S.A. de C.V.
14117 184 11 6 Telefonica del Sur S.A.
7303 153 73 18 Telecom Argentina Stet-France
6147 150 118 21 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 124 8 30 Telconet
10481 121 48 8 Prima S.A.
6503 114 148 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.
4270 93 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 276 819 233 The Internet Solution
8452 148 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 76 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
24835 69 34 6 RAYA Telecom - Egypt
6713 68 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 35 8 26 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 1204 969 Time Warner Telecom
18566 891 883 Covad Communications
9583 840 825 Sify Limited
4134 976 770 CHINANET-BACKBONE
4755 788 725 Videsh Sanchar Nigam Ltd. Aut
721 1026 719 DLA Systems Automation Center
11492 644 632 Cable One
22773 610 577 Cox Communications, Inc.
19916 563 509 OLM LLC
855 571 506 Canadian Research Network
5668 515 491 CenturyTel Internet Holdings,
6197 972 466 BellSouth Network Solutions,
19262 596 450 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
9498 507 438 BHARTI BT INTERNET LTD.
17488 436 427 Hathway IP Over Cable Interne
4766 721 418 Korea Telecom (KIX)
3602 520 414 Sprint Canada, Inc.
812 438 410 Rogers WAVE
17676 477 375 Softbank BB Corp.
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
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
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 /14:349 /15:679 /16:8655 /17:2963 /18:4975
/19:11206 /20:12371 /21:10671 /22:13704 /23:14889 /24:97175
/25:316 /26:250 /27:201 /28:62 /29:25 /30:55
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 874 891 Covad Communications
6197 785 972 BellSouth Network Solutions,
7018 747 1477 AT&T WorldNet Services
9583 661 840 Sify Limited
11492 635 644 Cable One
2386 612 878 AT&T Data Communications Serv
4323 578 1204 Time Warner Telecom
19916 557 563 OLM LLC
4766 521 721 Korea Telecom (KIX)
855 443 571 Canadian Research Network
5668 404 515 CenturyTel Internet Holdings,
7011 401 467 Citizens Utilities
702 371 586 UUNET - Commercial IP service
1239 367 853 Sprint
6198 358 493 BellSouth Network Solutions,
6517 342 369 Yipes Communications, Inc.
15270 334 361 PaeTec.net -a division of Pae
812 317 438 Rogers WAVE
22773 315 610 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1632 13:1 15:11 16:3
17:3 18:4 20:42 24:762 25:1 30:2
32:67 38:186 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:115 59:157 60:181
61:813 62:736 63:1895 64:2927 65:2164 66:3017
67:587 68:693 69:1385 70:277 71:51 72:571
73:20 80:718 81:597 82:506 83:353 84:340
85:412 86:265 87:146 88:17 89:4 124:5
125:183 128:150 129:173 130:102 131:311 132:34
133:7 134:151 135:46 136:169 137:62 138:182
139:89 140:445 141:135 142:412 143:144 144:229
145:39 146:312 147:134 148:328 149:187 150:113
151:72 152:115 153:99 154:6 155:186 156:91
157:119 158:152 159:177 160:88 161:68 162:253
163:176 164:166 165:176 166:147 167:237 168:474
169:139 170:314 171:12 192:5752 193:3355 194:2467
195:1729 196:732 198:3910 199:3270 200:4200 201:559
202:6422 203:6712 204:3834 205:2075 206:2426 207:2917
208:2016 209:3456 210:1843 211:782 212:1249 213:1442
214:320 215:40 216:3809 217:1153 218:232 219:135
220:640 221:333 222:146
End of report
