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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 31 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 180305
Prefixes after maximum aggregation: 100656
Unique aggregates announced to Internet: 87671
Total ASes present in the Internet Routing Table: 21406
Origin-only ASes present in the Internet Routing Table: 18613
Origin ASes announcing only one prefix: 8820
Transit ASes present in the Internet Routing Table: 2793
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1485510432
Equivalent to 88 /8s, 139 /16s and 23 /24s
Percentage of available address space announced: 40.1
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 87482
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37806
Total APNIC prefixes after maximum aggregation: 15960
Prefixes being announced from the APNIC address blocks: 35582
Unique aggregates announced from the APNIC address blocks: 17444
APNIC Region origin ASes present in the Internet Routing Table: 2465
APNIC Region origin ASes announcing only one prefix: 691
APNIC Region transit ASes present in the Internet Routing Table: 381
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 211629280
Equivalent to 12 /8s, 157 /16s and 52 /24s
Percentage of available APNIC address space announced: 66.2
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: 94946
Total ARIN prefixes after maximum aggregation: 56451
Prefixes being announced from the ARIN address blocks: 74231
Unique aggregates announced from the ARIN address blocks: 28266
ARIN Region origin ASes present in the Internet Routing Table: 10471
ARIN Region origin ASes announcing only one prefix: 3900
ARIN Region transit ASes present in the Internet Routing Table: 973
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 284626688
Equivalent to 16 /8s, 247 /16s and 15 /24s
Percentage of available ARIN address space announced: 70.7
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: 35401
Total RIPE prefixes after maximum aggregation: 23908
Prefixes being announced from the RIPE address blocks: 32399
Unique aggregates announced from the RIPE address blocks: 21787
RIPE Region origin ASes present in the Internet Routing Table: 7584
RIPE Region origin ASes announcing only one prefix: 3966
RIPE Region transit ASes present in the Internet Routing Table: 1250
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 230615424
Equivalent to 13 /8s, 190 /16s and 233 /24s
Percentage of available RIPE address space announced: 68.7
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: 10304
Total LACNIC prefixes after maximum aggregation: 3464
Prefixes being announced from the LACNIC address blocks: 8500
Unique aggregates announced from the LACNIC address blocks: 5087
LACNIC Region origin ASes present in the Internet Routing Table: 666
LACNIC Region origin ASes announcing only one prefix: 219
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 24854016
Equivalent to 1 /8s, 123 /16s and 62 /24s
Percentage of available LACNIC address space announced: 37.0
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: 1840
Total AfriNIC prefixes after maximum aggregation: 873
Prefixes being announced from the AfriNIC address blocks: 1223
Unique aggregates announced from the AfriNIC address blocks: 866
AfriNIC Region origin ASes present in the Internet Routing Table: 145
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 23
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3035392
Equivalent to 0 /8s, 46 /16s and 81 /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 982 6462 204 CHINANET-BACKBONE
9583 848 109 15 Sify Limited
4755 795 258 63 Videsh Sanchar Nigam Ltd. Aut
4766 717 3928 302 Korea Telecom (KIX)
1221 669 1428 476 Telstra Pty Ltd
7545 516 108 70 TPG Internet Pty Ltd
9498 516 211 70 BHARTI BT INTERNET LTD.
17676 480 6949 104 Softbank BB Corp.
17488 451 27 7 Hathway IP Over Cable Interne
9443 411 94 85 Primus Telecommunications
4802 368 75 158 Wantree Development
2907 338 1763 315 SINET Japan
9929 335 218 50 China Netcom Corp.
7474 330 227 228 SingTel Optus Pty Ltd
18101 325 68 26 Reliance Infocom Ltd Internet
17974 316 77 37 PT TELEKOMUNIKASI INDONESIA
17557 312 25 161 Pakistan Telecom
4780 282 226 16 Digital United Inc.
9837 271 78 169 Powertel Ltd
9800 259 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1469 6261 951 AT&T WorldNet Services
4323 1207 724 236 Time Warner Telecom
174 1036 5791 947 Cogent Communications
721 1029 21970 310 DLA Systems Automation Center
6197 985 593 475 BellSouth Network Solutions,
701 957 8065 800 UUNET Technologies, Inc.
18566 897 272 8 Covad Communications
2386 883 501 691 AT&T Data Communications Serv
1239 847 2792 601 Sprint
20115 672 545 351 Charter Communications
209 665 3604 531 Qwest
6198 636 449 238 BellSouth Network Solutions,
11492 632 89 12 Cable One
22773 612 1478 33 Cox Communications, Inc.
19262 604 1743 146 Verizon Global Networks
855 573 243 65 Canadian Research Network
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
6478 537 1517 298 AT&T Worldnet Services
3602 522 127 106 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 586 1954 462 UUNET - Commercial IP service
3301 303 1071 289 TeliaNet Sweden
3352 303 1500 34 Ibernet, Internet Access Netw
3320 281 3485 235 Deutsche Telekom AG
8220 275 474 269 COLT Telecommunications
680 242 2025 239 DFN-IP service G-WiN
3246 229 487 219 Song Networks
8708 223 275 207 Romania Data Systems S.A.
6746 217 85 189 Dynamic Network Technologies,
1257 195 712 173 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 178 840 126 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
8866 173 37 13 Bulgarian Telecommunication C
24863 168 38 9 LINKdotNET AS number
3215 167 1366 81 France Telecom Transpac
5400 166 328 136 BT Ignite European Backbone
3300 164 170 93 AUCS Communications Services
6830 160 669 33 UPC Distribution Services
12479 158 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 562 1048 216 UniNet S.A. de C.V.
22047 379 141 44 VTR PUNTO NET S.A.
11172 304 110 77 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
13999 189 51 18 Mega Cable S.A. de C.V.
14117 181 11 6 Telefonica del Sur S.A.
6147 154 126 22 Telefonica Del Peru
7303 154 73 18 Telecom Argentina Stet-France
11556 130 64 3 Cable-Wireless Panama
19169 123 8 30 Telconet
10481 121 48 8 Prima S.A.
6503 115 148 76 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 107 88 79 Global One Communicaoes Ltda
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
19429 96 52 49 E.T.B.
4270 94 17 9 Red de Interconexion Universi
11311 94 8 23 Sinectis S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 819 233 The Internet Solution
8452 152 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
6713 68 71 10 Itissalat Al-MAGHRIB
20928 60 16 2 Noor Advanced Technologies AS
24835 55 34 6 RAYA Telecom - Egypt
5713 38 166 34 Telkom SA Ltd
33774 37 9 28 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
12455 28 6 5 Jambonet Autonomous system
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
8346 22 14 19 SONATEL-AS Autonomous System
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1207 971 Time Warner Telecom
18566 897 889 Covad Communications
9583 848 833 Sify Limited
4134 982 778 CHINANET-BACKBONE
4755 795 732 Videsh Sanchar Nigam Ltd. Aut
721 1029 719 DLA Systems Automation Center
11492 632 620 Cable One
22773 612 579 Cox Communications, Inc.
6197 985 510 BellSouth Network Solutions,
19916 563 509 OLM LLC
855 573 508 Canadian Research Network
5668 520 496 CenturyTel Internet Holdings,
19262 604 458 Verizon Global Networks
7545 516 446 TPG Internet Pty Ltd
9498 516 446 BHARTI BT INTERNET LTD.
17488 451 444 Hathway IP Over Cable Interne
7757 456 437 AT&T Broadband
3602 522 416 Sprint Canada, Inc.
4766 717 415 Korea Telecom (KIX)
812 438 410 Rogers WAVE
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
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
/13:198 /14:347 /15:690 /16:8671 /17:2983 /18:4989
/19:11221 /20:12422 /21:10792 /22:13825 /23:15004 /24:98063
/25:315 /26:259 /27:206 /28:62 /29:25 /30:55
/31:3 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 880 897 Covad Communications
6197 784 985 BellSouth Network Solutions,
7018 747 1469 AT&T WorldNet Services
9583 667 848 Sify Limited
11492 623 632 Cable One
2386 617 883 AT&T Data Communications Serv
4323 582 1207 Time Warner Telecom
19916 557 563 OLM LLC
4766 520 717 Korea Telecom (KIX)
6198 501 636 BellSouth Network Solutions,
855 445 573 Canadian Research Network
7757 438 456 AT&T Broadband
5668 409 520 CenturyTel Internet Holdings,
7011 408 474 Citizens Utilities
702 373 586 UUNET - Commercial IP service
1239 366 847 Sprint
6517 343 370 Yipes Communications, Inc.
15270 338 366 PaeTec.net -a division of Pae
22773 319 612 Cox Communications, Inc.
812 317 438 Rogers WAVE
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1635 13:1 15:11 16:3
17:3 18:4 20:42 24:859 25:1 30:2
32:66 38:191 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:115 59:164 60:199
61:822 62:741 63:1899 64:2963 65:2227 66:3102
67:589 68:666 69:1424 70:302 71:54 72:611
73:23 80:745 81:599 82:499 83:358 84:343
85:422 86:287 87:154 88:17 89:9 124:8
125:190 128:151 129:172 130:103 131:310 132:34
133:7 134:145 135:46 136:169 137:61 138:182
139:88 140:449 141:133 142:414 143:144 144:222
145:39 146:306 147:134 148:323 149:185 150:114
151:72 152:61 153:100 154:6 155:186 156:90
157:119 158:156 159:180 160:88 161:68 162:263
163:174 164:175 165:181 166:145 167:236 168:475
169:139 170:316 171:12 190:30 192:5761 193:3358
194:2487 195:1745 196:743 198:3900 199:3266 200:4215
201:571 202:6460 203:6761 204:3888 205:2096 206:2438
207:2923 208:2008 209:3530 210:1866 211:789 212:1280
213:1440 214:320 215:40 216:3839 217:1148 218:235
219:134 220:637 221:337 222:146
End of report
