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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 27 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 179732
Prefixes after maximum aggregation: 100545
Unique aggregates announced to Internet: 87407
Total ASes present in the Internet Routing Table: 21387
Origin-only ASes present in the Internet Routing Table: 18591
Origin ASes announcing only one prefix: 8815
Transit ASes present in the Internet Routing Table: 2796
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: 1
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1484330272
Equivalent to 88 /8s, 121 /16s and 21 /24s
Percentage of available address space announced: 40.0
Percentage of allocated address space announced: 59.1
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 87046
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37775
Total APNIC prefixes after maximum aggregation: 15930
Prefixes being announced from the APNIC address blocks: 35567
Unique aggregates announced from the APNIC address blocks: 17339
APNIC Region origin ASes present in the Internet Routing Table: 2463
APNIC Region origin ASes announcing only one prefix: 693
APNIC Region transit ASes present in the Internet Routing Table: 382
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 211401184
Equivalent to 12 /8s, 153 /16s and 185 /24s
Percentage of available APNIC address space announced: 66.1
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: 94465
Total ARIN prefixes after maximum aggregation: 56379
Prefixes being announced from the ARIN address blocks: 73766
Unique aggregates announced from the ARIN address blocks: 28182
ARIN Region origin ASes present in the Internet Routing Table: 10470
ARIN Region origin ASes announcing only one prefix: 3905
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: 17
Number of ARIN addresses announced to Internet: 283873792
Equivalent to 16 /8s, 235 /16s and 146 /24s
Percentage of available ARIN address space announced: 70.5
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: 35367
Total RIPE prefixes after maximum aggregation: 23873
Prefixes being announced from the RIPE address blocks: 32370
Unique aggregates announced from the RIPE address blocks: 21735
RIPE Region origin ASes present in the Internet Routing Table: 7567
RIPE Region origin ASes announcing only one prefix: 3955
RIPE Region transit ASes present in the Internet Routing Table: 1249
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 230528640
Equivalent to 13 /8s, 189 /16s and 150 /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: 10269
Total LACNIC prefixes after maximum aggregation: 3489
Prefixes being announced from the LACNIC address blocks: 8449
Unique aggregates announced from the LACNIC address blocks: 5054
LACNIC Region origin ASes present in the Internet Routing Table: 666
LACNIC Region origin ASes announcing only one prefix: 218
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: 24819200
Equivalent to 1 /8s, 122 /16s and 182 /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: 1849
Total AfriNIC prefixes after maximum aggregation: 874
Prefixes being announced from the AfriNIC address blocks: 1230
Unique aggregates announced from the AfriNIC address blocks: 864
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: 24
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 3046656
Equivalent to 0 /8s, 46 /16s and 125 /24s
Percentage of available AfriNIC address space announced: 9.1
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 846 109 15 Sify Limited
4755 790 258 63 Videsh Sanchar Nigam Ltd. Aut
4766 720 3930 304 Korea Telecom (KIX)
1221 667 1428 474 Telstra Pty Ltd
7545 516 108 70 TPG Internet Pty Ltd
9498 513 211 69 BHARTI BT INTERNET LTD.
17676 480 6949 104 Softbank BB Corp.
17488 435 26 9 Hathway IP Over Cable Interne
9443 411 94 85 Primus Telecommunications
4802 366 75 159 Wantree Development
2907 338 1763 315 SINET Japan
9929 335 218 50 China Netcom Corp.
7474 330 227 228 SingTel Optus Pty Ltd
18101 330 68 23 Reliance Infocom Ltd Internet
17974 318 77 37 PT TELEKOMUNIKASI INDONESIA
17557 310 24 159 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 1471 6248 955 AT&T WorldNet Services
4323 1208 724 236 Time Warner Telecom
174 1036 5791 947 Cogent Communications
721 1028 21938 308 DLA Systems Automation Center
6197 985 593 475 BellSouth Network Solutions,
701 963 8083 806 UUNET Technologies, Inc.
18566 894 272 8 Covad Communications
2386 883 501 691 AT&T Data Communications Serv
1239 849 2792 602 Sprint
20115 668 545 348 Charter Communications
209 663 3604 529 Qwest
11492 632 89 12 Cable One
22773 610 1478 33 Cox Communications, Inc.
19262 603 1742 146 Verizon Global Networks
852 569 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 559 242 59 Canadian Research Network
6478 537 1517 298 AT&T Worldnet Services
3602 522 127 106 Sprint Canada, Inc.
5668 522 143 24 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 587 1954 464 UUNET - Commercial IP service
3352 303 1500 34 Ibernet, Internet Access Netw
3301 302 1071 288 TeliaNet Sweden
3320 281 3485 235 Deutsche Telekom AG
8220 275 474 269 COLT Telecommunications
680 248 2025 239 DFN-IP service G-WiN
3246 228 487 218 Song Networks
8708 222 274 206 Romania Data Systems S.A.
6746 218 85 188 Dynamic Network Technologies,
1257 195 712 173 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
8866 171 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 159 669 33 UPC Distribution Services
12479 157 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 557 1048 214 UniNet S.A. de C.V.
22047 379 141 44 VTR PUNTO NET S.A.
11172 300 110 78 Servicios Alestra S.A de C.V
16814 297 18 7 NSS, S.A.
13999 183 51 46 Mega Cable S.A. de C.V.
14117 181 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 123 8 30 Telconet
10481 121 48 8 Prima S.A.
6503 116 148 77 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 108 88 80 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 151 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 73 34 6 RAYA Telecom - Egypt
6713 68 71 10 Itissalat Al-MAGHRIB
20928 60 16 2 Noor Advanced Technologies AS
5713 38 166 34 Telkom SA Ltd
33774 36 9 27 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
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
12455 21 6 5 Jambonet Autonomous system
21280 21 4 4 Swift Global Kenya Ltd.Is an
8346 20 14 19 SONATEL-AS Autonomous System
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1208 972 Time Warner Telecom
18566 894 886 Covad Communications
9583 846 831 Sify Limited
4134 982 778 CHINANET-BACKBONE
4755 790 727 Videsh Sanchar Nigam Ltd. Aut
721 1028 720 DLA Systems Automation Center
11492 632 620 Cable One
22773 610 577 Cox Communications, Inc.
6197 985 510 BellSouth Network Solutions,
19916 563 509 OLM LLC
855 559 500 Canadian Research Network
5668 522 498 CenturyTel Internet Holdings,
19262 603 457 Verizon Global Networks
7545 516 446 TPG Internet Pty Ltd
9498 513 444 BHARTI BT INTERNET LTD.
17488 435 426 Hathway IP Over Cable Interne
4766 720 416 Korea Telecom (KIX)
3602 522 416 Sprint Canada, Inc.
812 438 410 Rogers WAVE
17676 480 376 Softbank BB Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
/13:197 /14:350 /15:687 /16:8668 /17:2982 /18:4985
/19:11222 /20:12405 /21:10780 /22:13783 /23:14975 /24:97560
/25:313 /26:265 /27:238 /28:62 /29:25 /30:55
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 877 894 Covad Communications
6197 784 985 BellSouth Network Solutions,
7018 746 1471 AT&T WorldNet Services
9583 665 846 Sify Limited
11492 623 632 Cable One
2386 617 883 AT&T Data Communications Serv
4323 582 1208 Time Warner Telecom
19916 557 563 OLM LLC
4766 520 720 Korea Telecom (KIX)
855 445 559 Canadian Research Network
5668 410 522 CenturyTel Internet Holdings,
7011 405 471 Citizens Utilities
702 374 587 UUNET - Commercial IP service
1239 367 849 Sprint
6198 357 492 BellSouth Network Solutions,
6517 343 371 Yipes Communications, Inc.
15270 338 366 PaeTec.net -a division of Pae
7757 322 340 AT&T Broadband
812 317 438 Rogers WAVE
22773 317 610 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1638 13:1 15:11 16:3
17:3 18:4 20:42 24:827 25:1 30:2
32:66 38:191 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:115 59:163 60:183
61:822 62:746 63:1890 64:2940 65:2152 66:3069
67:587 68:648 69:1397 70:286 71:53 72:577
73:23 80:740 81:601 82:510 83:359 84:343
85:422 86:281 87:151 88:18 89:9 124:7
125:188 128:163 129:174 130:103 131:310 132:34
133:7 134:152 135:46 136:169 137:61 138:183
139:89 140:380 141:133 142:414 143:144 144:226
145:39 146:312 147:134 148:324 149:184 150:114
151:72 152:61 153:103 154:6 155:186 156:90
157:121 158:156 159:180 160:88 161:67 162:260
163:176 164:166 165:181 166:146 167:235 168:477
169:139 170:316 171:12 190:30 192:5752 193:3359
194:2476 195:1747 196:743 198:3884 199:3260 200:4197
201:560 202:6460 203:6749 204:3880 205:2088 206:2435
207:2915 208:2018 209:3497 210:1869 211:789 212:1271
213:1434 214:321 215:40 216:3796 217:1151 218:235
219:132 220:639 221:336 222:146
End of report
