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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 25 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175490
Prefixes after maximum aggregation: 99050
Unique aggregates announced to Internet: 84946
Total ASes present in the Internet Routing Table: 20979
Origin-only ASes present in the Internet Routing Table: 18255
Origin ASes announcing only one prefix: 8642
Transit ASes present in the Internet Routing Table: 2724
Transit-only ASes present in the Internet Routing Table: 75
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: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1465157248
Equivalent to 87 /8s, 84 /16s and 134 /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: 84205
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36704
Total APNIC prefixes after maximum aggregation: 15840
Prefixes being announced from the APNIC address blocks: 34467
Unique aggregates announced from the APNIC address blocks: 16842
APNIC Region origin ASes present in the Internet Routing Table: 2412
APNIC Region origin ASes announcing only one prefix: 707
APNIC Region transit ASes present in the Internet Routing Table: 368
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207794624
Equivalent to 12 /8s, 98 /16s and 177 /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: 92800
Total ARIN prefixes after maximum aggregation: 55915
Prefixes being announced from the ARIN address blocks: 72322
Unique aggregates announced from the ARIN address blocks: 27487
ARIN Region origin ASes present in the Internet Routing Table: 10370
ARIN Region origin ASes announcing only one prefix: 3849
ARIN Region transit ASes present in the Internet Routing Table: 967
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 276880384
Equivalent to 16 /8s, 128 /16s and 220 /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: 34301
Total RIPE prefixes after maximum aggregation: 23145
Prefixes being announced from the RIPE address blocks: 31254
Unique aggregates announced from the RIPE address blocks: 20945
RIPE Region origin ASes present in the Internet Routing Table: 7329
RIPE Region origin ASes announcing only one prefix: 3834
RIPE Region transit ASes present in the Internet Routing Table: 1209
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 225015552
Equivalent to 13 /8s, 105 /16s and 119 /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: 9882
Total LACNIC prefixes after maximum aggregation: 3297
Prefixes being announced from the LACNIC address blocks: 8172
Unique aggregates announced from the LACNIC address blocks: 4774
LACNIC Region origin ASes present in the Internet Routing Table: 651
LACNIC Region origin ASes announcing only one prefix: 209
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: 25
Number of LACNIC addresses announced to Internet: 22917888
Equivalent to 1 /8s, 93 /16s and 179 /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: 853
Prefixes being announced from the AfriNIC address blocks: 1155
Unique aggregates announced from the AfriNIC address blocks: 834
AfriNIC Region origin ASes present in the Internet Routing Table: 142
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: 2866944
Equivalent to 0 /8s, 43 /16s and 191 /24s
Percentage of available AfriNIC address space announced: 8.5
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 828 77 12 Sify Limited
4755 753 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 735 1342 513 Telstra Pty Ltd
4766 651 3927 287 Korea Telecom (KIX)
7545 511 106 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 409 216 65 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
17488 367 22 11 Hathway IP Over Cable Interne
4802 343 73 156 Wantree Development
2907 340 1764 317 SINET Japan
7474 332 258 228 SingTel Optus Pty Ltd
17557 331 24 161 Pakistan Telecom
9929 329 217 48 China Netcom Corp.
18302 312 142 173 SK Global co., Ltd
17974 282 65 16 PT TELEKOMUNIKASI INDONESIA
9837 276 79 177 Powertel Ltd
18101 271 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 1481 6316 964 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
174 1078 5847 1000 Cogent Communications
721 1070 21938 308 DLA Systems Automation Center
701 987 8136 831 UUNET Technologies, Inc.
6197 963 407 496 BellSouth Network Solutions,
2386 914 528 687 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 843 2801 597 Sprint
209 657 3607 520 Qwest
20115 655 532 345 Charter Communications
11492 629 81 10 Cable One
852 573 1093 381 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 542 126 103 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
702 614 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
8708 234 275 220 Romania Data Systems S.A.
3246 230 477 223 Song Networks
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
12479 150 322 5 Uni2 Autonomous System
24863 150 37 6 LINKdotNET AS number
25186 148 211 104 France Telecom Transpac's Tra
3215 147 1269 78 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 396 708 169 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 283 104 70 Servicios Alestra S.A de C.V
11664 223 22 14 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 178 128 7 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 129 64 2 Cable-Wireless Panama
19169 127 8 23 Telconet
10481 121 48 8 Prima S.A.
6505 119 89 85 Global One Communicaoes Ltda
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
11311 99 8 10 Sinectis S.A.
23216 93 23 11 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 228 The Internet Solution
8452 147 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 78 211 71 The Internetworking Company o
6713 69 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 828 816 Sify Limited
4134 1017 800 CHINANET-BACKBONE
721 1070 762 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 963 467 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 511 440 TPG Internet Pty Ltd
3602 542 439 Sprint Canada, Inc.
19262 563 428 Verizon Global Networks
17676 470 370 Softbank BB Corp.
4766 651 364 Korea Telecom (KIX)
6467 407 359 E.Spire Communications, Inc.
17488 367 356 Hathway IP Over Cable Interne
9498 409 344 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
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 /14:342 /15:668 /16:8606 /17:2895 /18:4881
/19:11036 /20:12184 /21:10210 /22:13490 /23:14619 /24:95294
/25:346 /26:291 /27:202 /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 785 963 BellSouth Network Solutions,
7018 732 1481 AT&T WorldNet Services
9583 651 828 Sify Limited
2386 641 914 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
702 393 614 UUNET - Commercial IP service
7011 381 432 Citizens Utilities
5668 376 476 CenturyTel Internet Holdings,
1239 364 843 Sprint
6198 355 493 BellSouth Network Solutions,
6517 320 345 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 296 312 SK Global co., Ltd
701 285 987 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1621 13:1 15:11 16:3
17:3 18:3 20:42 24:680 30:2 32:64
38:181 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:96 59:94 60:150 61:806
62:794 63:1895 64:2908 65:2126 66:2895 67:636
68:685 69:1314 70:235 71:35 72:467 80:710
81:581 82:481 83:310 84:305 85:367 86:203
87:100 125:63 128:142 129:169 130:99 131:301
132:35 133:1 134:151 135:45 136:168 137:70
138:174 139:75 140:446 141:146 142:400 143:145
144:218 145:34 146:304 147:131 148:271 149:192
150:107 151:73 152:111 153:94 154:5 155:152
156:84 157:119 158:146 159:179 160:85 161:76
162:241 163:147 164:189 165:183 166:146 167:246
168:461 169:142 170:309 171:12 192:5753 193:3361
194:2437 195:1639 196:713 198:3920 199:3255 200:4236
201:438 202:6252 203:6586 204:3826 205:2095 206:2443
207:2920 208:2031 209:3459 210:1775 211:816 212:1216
213:1379 214:314 215:42 216:3841 217:1176 218:222
219:129 220:540 221:317 222:128
End of report
