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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 27 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175592
Prefixes after maximum aggregation: 99057
Unique aggregates announced to Internet: 84975
Total ASes present in the Internet Routing Table: 20971
Origin-only ASes present in the Internet Routing Table: 18246
Origin ASes announcing only one prefix: 8633
Transit ASes present in the Internet Routing Table: 2725
Transit-only ASes present in the Internet Routing Table: 74
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1465298816
Equivalent to 87 /8s, 86 /16s and 175 /24s
Percentage of available address space announced: 39.5
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84217
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36677
Total APNIC prefixes after maximum aggregation: 15842
Prefixes being announced from the APNIC address blocks: 34437
Unique aggregates announced from the APNIC address blocks: 16858
APNIC Region origin ASes present in the Internet Routing Table: 2407
APNIC Region origin ASes announcing only one prefix: 700
APNIC Region transit ASes present in the Internet Routing Table: 366
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207801024
Equivalent to 12 /8s, 98 /16s and 202 /24s
Percentage of available APNIC address space announced: 77.1
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, 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: 92836
Total ARIN prefixes after maximum aggregation: 55918
Prefixes being announced from the ARIN address blocks: 72350
Unique aggregates announced from the ARIN address blocks: 27487
ARIN Region origin ASes present in the Internet Routing Table: 10368
ARIN Region origin ASes announcing only one prefix: 3848
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 276894208
Equivalent to 16 /8s, 129 /16s and 18 /24s
Percentage of available ARIN address space announced: 68.8
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: 34325
Total RIPE prefixes after maximum aggregation: 23163
Prefixes being announced from the RIPE address blocks: 31279
Unique aggregates announced from the RIPE address blocks: 20970
RIPE Region origin ASes present in the Internet Routing Table: 7331
RIPE Region origin ASes announcing only one prefix: 3834
RIPE Region transit ASes present in the Internet Routing Table: 1211
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 225044736
Equivalent to 13 /8s, 105 /16s and 233 /24s
Percentage of available RIPE address space announced: 67.1
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: 9951
Total LACNIC prefixes after maximum aggregation: 3284
Prefixes being announced from the LACNIC address blocks: 8252
Unique aggregates announced from the LACNIC address blocks: 4767
LACNIC Region origin ASes present in the Internet Routing Table: 650
LACNIC Region origin ASes announcing only one prefix: 208
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: 25
Number of LACNIC addresses announced to Internet: 22934016
Equivalent to 1 /8s, 93 /16s and 242 /24s
Percentage of available LACNIC address space announced: 34.2
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: 1796
Total AfriNIC prefixes after maximum aggregation: 850
Prefixes being announced from the AfriNIC address blocks: 1159
Unique aggregates announced from the AfriNIC address blocks: 835
AfriNIC Region origin ASes present in the Internet Routing Table: 141
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 19
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2875136
Equivalent to 0 /8s, 43 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 8.6
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 1017 6348 217 CHINANET-BACKBONE
9583 830 77 12 Sify Limited
4755 753 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 741 1342 513 Telstra Pty Ltd
4766 651 3927 287 Korea Telecom (KIX)
7545 511 108 70 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 411 216 66 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
17488 370 22 10 Hathway IP Over Cable Interne
4802 348 74 160 Wantree Development
2907 340 1764 317 SINET Japan
17557 331 24 161 Pakistan Telecom
9929 330 217 48 China Netcom Corp.
7474 329 258 227 SingTel Optus Pty Ltd
18302 313 142 168 SK Global co., Ltd
17974 281 65 16 PT TELEKOMUNIKASI INDONESIA
9837 276 79 177 Powertel Ltd
18101 270 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1470 6316 963 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
174 1078 5847 1000 Cogent Communications
721 1069 21938 308 DLA Systems Automation Center
701 985 8134 830 UUNET Technologies, Inc.
6197 962 407 496 BellSouth Network Solutions,
2386 915 543 680 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 845 2801 599 Sprint
209 657 3607 520 Qwest
20115 655 532 345 Charter Communications
11492 629 81 10 Cable One
852 574 1093 382 Telus Advanced Communications
19262 563 1593 135 Verizon Global Networks
19916 563 49 54 OLM LLC
855 557 247 64 Canadian Research Network
22773 557 1468 25 Cox Communications, Inc.
3602 540 126 103 Sprint Canada, Inc.
3356 515 10633 402 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 615 1960 483 UUNET - Commercial IP service
3301 304 1101 290 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 271 475 266 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
3246 230 477 223 Song Networks
8708 229 272 213 Romania Data Systems S.A.
6746 202 51 173 Dynamic Network Technologies,
1257 195 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 94 AUCS Communications Services
8866 159 37 9 Bulgarian Telecommunication C
3215 150 1275 81 France Telecom Transpac
12479 150 322 5 Uni2 Autonomous System
24863 150 37 6 LINKdotNET AS number
25186 148 211 104 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 394 709 167 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 282 104 69 Servicios Alestra S.A de C.V
11664 222 22 14 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 180 128 8 VTR PUNTO NET S.A.
6147 158 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 142 52 9 Mega Cable S.A. de C.V.
11556 130 64 3 Cable-Wireless Panama
19169 126 8 23 Telconet
10481 121 48 8 Prima S.A.
6503 113 148 74 AVANTEL, S.A.
18822 113 7 10 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
6505 107 88 80 Global One Communicaoes Ltda
11311 99 8 10 Sinectis S.A.
14522 94 12 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 812 229 The Internet Solution
8452 146 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 76 163 69 The Internetworking Company o
6713 67 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
12455 33 6 3 Jambonet Autonomous system
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
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
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1191 958 Time Warner Telecom
18566 878 871 Covad Communications
9583 830 818 Sify Limited
4134 1017 800 CHINANET-BACKBONE
721 1069 761 DLA Systems Automation Center
4755 753 684 Videsh Sanchar Nigam Ltd. Aut
11492 629 619 Cable One
22773 557 532 Cox Communications, Inc.
19916 563 509 OLM LLC
855 557 493 Canadian Research Network
6197 962 466 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 511 441 TPG Internet Pty Ltd
3602 540 437 Sprint Canada, Inc.
19262 563 428 Verizon Global Networks
17676 470 370 Softbank BB Corp.
4766 651 364 Korea Telecom (KIX)
17488 370 360 Hathway IP Over Cable Interne
6467 407 359 E.Spire Communications, Inc.
9498 411 345 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /11:17 /12:82
/13:188 /14:343 /15:666 /16:8607 /17:2896 /18:4884
/19:11037 /20:12187 /21:10223 /22:13509 /23:14631 /24:95344
/25:347 /26:292 /27:200 /28:26 /29:12 /30:37
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 784 962 BellSouth Network Solutions,
7018 722 1470 AT&T WorldNet Services
9583 653 830 Sify Limited
2386 641 915 AT&T Data Communications Serv
11492 621 629 Cable One
4323 569 1191 Time Warner Telecom
19916 557 563 OLM LLC
4766 456 651 Korea Telecom (KIX)
855 430 557 Canadian Research Network
702 394 615 UUNET - Commercial IP service
7011 381 432 Citizens Utilities
5668 376 476 CenturyTel Internet Holdings,
1239 365 845 Sprint
6198 355 493 BellSouth Network Solutions,
6517 321 346 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 297 313 SK Global co., Ltd
701 285 985 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1620 13:1 15:11 16:3
17:3 18:3 20:42 24:680 30:2 32:64
38:183 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:96 59:95 60:154 61:803
62:797 63:1894 64:2909 65:2125 66:2894 67:636
68:685 69:1315 70:236 71:35 72:469 80:695
81:579 82:481 83:320 84:307 85:371 86:204
87:100 125:63 128:140 129:165 130:99 131:301
132:34 133:1 134:151 135:45 136:164 137:71
138:173 139:75 140:443 141:146 142:400 143:145
144:218 145:34 146:304 147:131 148:270 149:190
150:108 151:73 152:111 153:94 154:5 155:152
156:84 157:118 158:146 159:176 160:85 161:76
162:241 163:159 164:189 165:183 166:146 167:245
168:461 169:142 170:308 171:12 192:5756 193:3359
194:2438 195:1640 196:718 198:3921 199:3258 200:4294
201:455 202:6239 203:6583 204:3834 205:2094 206:2438
207:2923 208:2032 209:3459 210:1775 211:796 212:1216
213:1378 214:314 215:42 216:3844 217:1171 218:222
219:127 220:539 221:317 222:129
End of report
