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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 12 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 178174
Prefixes after maximum aggregation: 100024
Unique aggregates announced to Internet: 86530
Total ASes present in the Internet Routing Table: 21298
Origin-only ASes present in the Internet Routing Table: 18526
Origin ASes announcing only one prefix: 8780
Transit ASes present in the Internet Routing Table: 2772
Transit-only ASes present in the Internet Routing Table: 73
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: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1479264768
Equivalent to 88 /8s, 43 /16s and 202 /24s
Percentage of available address space announced: 39.9
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 86052
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37330
Total APNIC prefixes after maximum aggregation: 15817
Prefixes being announced from the APNIC address blocks: 35118
Unique aggregates announced from the APNIC address blocks: 17200
APNIC Region origin ASes present in the Internet Routing Table: 2457
APNIC Region origin ASes announcing only one prefix: 699
APNIC Region transit ASes present in the Internet Routing Table: 378
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 210311360
Equivalent to 12 /8s, 137 /16s and 24 /24s
Percentage of available APNIC address space announced: 65.8
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: 93774
Total ARIN prefixes after maximum aggregation: 56286
Prefixes being announced from the ARIN address blocks: 73099
Unique aggregates announced from the ARIN address blocks: 28007
ARIN Region origin ASes present in the Internet Routing Table: 10422
ARIN Region origin ASes announcing only one prefix: 3875
ARIN Region transit ASes present in the Internet Routing Table: 963
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 282006016
Equivalent to 16 /8s, 207 /16s and 18 /24s
Percentage of available ARIN address space announced: 70.0
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: 35064
Total RIPE prefixes after maximum aggregation: 23653
Prefixes being announced from the RIPE address blocks: 32053
Unique aggregates announced from the RIPE address blocks: 21459
RIPE Region origin ASes present in the Internet Routing Table: 7538
RIPE Region origin ASes announcing only one prefix: 3948
RIPE Region transit ASes present in the Internet Routing Table: 1240
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 229434752
Equivalent to 13 /8s, 172 /16s and 229 /24s
Percentage of available RIPE address space announced: 68.4
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: 10143
Total LACNIC prefixes after maximum aggregation: 3406
Prefixes being announced from the LACNIC address blocks: 8331
Unique aggregates announced from the LACNIC address blocks: 4821
LACNIC Region origin ASes present in the Internet Routing Table: 662
LACNIC Region origin ASes announcing only one prefix: 212
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 23625472
Equivalent to 1 /8s, 104 /16s and 127 /24s
Percentage of available LACNIC address space announced: 35.2
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: 1857
Total AfriNIC prefixes after maximum aggregation: 862
Prefixes being announced from the AfriNIC address blocks: 1215
Unique aggregates announced from the AfriNIC address blocks: 860
AfriNIC Region origin ASes present in the Internet Routing Table: 145
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2974976
Equivalent to 0 /8s, 45 /16s and 101 /24s
Percentage of available AfriNIC address space announced: 8.9
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 995 6450 206 CHINANET-BACKBONE
9583 832 109 14 Sify Limited
4755 766 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 725 3930 299 Korea Telecom (KIX)
1221 668 1364 474 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
9498 488 211 69 BHARTI BT INTERNET LTD.
17676 478 6901 102 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9443 399 89 85 Primus Telecommunications
4802 356 74 160 Wantree Development
2907 338 1763 315 SINET Japan
9929 332 217 50 China Netcom Corp.
7474 329 227 227 SingTel Optus Pty Ltd
18101 325 68 23 Reliance Infocom Ltd Internet
17557 308 24 161 Pakistan Telecom
17974 303 72 32 PT TELEKOMUNIKASI INDONESIA
4780 283 226 16 Digital United Inc.
9837 270 78 169 Powertel Ltd
9394 260 690 7 CHINA RAILWAY Internet(CRNET)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1461 6312 952 AT&T WorldNet Services
4323 1201 723 235 Time Warner Telecom
174 1041 5825 959 Cogent Communications
721 1031 21938 309 DLA Systems Automation Center
701 969 8099 812 UUNET Technologies, Inc.
6197 969 435 505 BellSouth Network Solutions,
2386 892 501 685 AT&T Data Communications Serv
18566 891 272 8 Covad Communications
1239 844 2805 599 Sprint
209 660 3606 528 Qwest
20115 657 537 339 Charter Communications
11492 641 89 12 Cable One
22773 603 1478 33 Cox Communications, Inc.
19262 593 1707 146 Verizon Global Networks
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 562 243 65 Canadian Research Network
6478 526 1448 289 AT&T Worldnet Services
3602 523 127 106 Sprint Canada, Inc.
3356 519 10617 399 Level 3 Communications, LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 590 1954 468 UUNET - Commercial IP service
3301 303 1071 289 TeliaNet Sweden
3352 301 1500 34 Ibernet, Internet Access Netw
3320 285 3485 239 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 229 487 218 Song Networks
8708 222 274 206 Romania Data Systems S.A.
6746 209 52 181 Dynamic Network Technologies,
1257 190 712 170 SWIPnet Swedish IP Network
3269 184 1893 69 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 172 37 11 Bulgarian Telecommunication C
5400 166 328 135 BT Ignite European Backbone
24863 166 38 9 LINKdotNET AS number
3215 163 1326 82 France Telecom Transpac
6830 162 669 33 UPC Distribution Services
3300 159 169 90 AUCS Communications Services
12479 157 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 543 808 212 UniNet S.A. de C.V.
22047 380 141 43 VTR PUNTO NET S.A.
16814 295 18 7 NSS, S.A.
11172 294 109 76 Servicios Alestra S.A de C.V
14117 184 11 6 Telefonica del Sur S.A.
13999 175 52 9 Mega Cable S.A. de C.V.
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 115 148 76 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 107 88 80 Global One Communicaoes Ltda
11311 101 8 14 Sinectis S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
14522 97 12 8 SatNet S.A.
7315 96 6 3 Grupo Rey Moreno
4270 93 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 273 812 230 The Internet Solution
8452 142 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 101 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
24835 67 34 6 RAYA Telecom - Egypt
20928 61 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 35 5 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
21280 23 4 4 Swift Global Kenya Ltd.Is an
10798 22 1 13 Standard Bank of South Africa
16637 22 10 20 Johnnic e-Ventures
12455 19 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 1201 966 Time Warner Telecom
18566 891 883 Covad Communications
9583 832 818 Sify Limited
4134 995 789 CHINANET-BACKBONE
721 1031 722 DLA Systems Automation Center
4755 766 702 Videsh Sanchar Nigam Ltd. Aut
11492 641 629 Cable One
22773 603 570 Cox Communications, Inc.
19916 563 509 OLM LLC
855 562 497 Canadian Research Network
5668 511 487 CenturyTel Internet Holdings,
6197 969 464 BellSouth Network Solutions,
19262 593 447 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
17488 436 427 Hathway IP Over Cable Interne
4766 725 426 Korea Telecom (KIX)
9498 488 419 BHARTI BT INTERNET LTD.
3602 523 417 Sprint Canada, Inc.
17676 478 376 Softbank BB Corp.
6467 404 357 E.Spire Communications, Inc.
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 28947 CJSC InT, Ekaterinbu
29544 UNALLOCATED 82.151.64.0/19 12956 Telefonica Data Auto
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.5.5.0/24 577 Bell Advanced Communications
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 /14:346 /15:674 /16:8645 /17:2953 /18:4970
/19:11201 /20:12321 /21:10526 /22:13628 /23:14818 /24:96792
/25:345 /26:252 /27:187 /28:61 /29:25 /30:54
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 874 891 Covad Communications
6197 784 969 BellSouth Network Solutions,
7018 730 1461 AT&T WorldNet Services
9583 653 832 Sify Limited
11492 632 641 Cable One
2386 626 892 AT&T Data Communications Serv
4323 577 1201 Time Warner Telecom
19916 557 563 OLM LLC
4766 525 725 Korea Telecom (KIX)
855 434 562 Canadian Research Network
5668 400 511 CenturyTel Internet Holdings,
7011 399 465 Citizens Utilities
702 374 590 UUNET - Commercial IP service
1239 364 844 Sprint
6198 357 500 BellSouth Network Solutions,
6517 331 358 Yipes Communications, Inc.
15270 330 357 PaeTec.net -a division of Pae
22773 310 603 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
701 279 969 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 5:1 8:43 12:1630 13:1 15:11
16:3 17:3 18:4 20:42 24:715 25:1
30:2 32:69 38:186 40:54 44:3 47:3
52:4 55:1 56:3 57:34 58:112 59:149
60:177 61:816 62:781 63:1891 64:2939 65:2144
66:3002 67:590 68:695 69:1366 70:267 71:42
72:564 73:19 80:728 81:591 82:506 83:350
84:336 85:403 86:259 87:129 88:16 124:1
125:147 128:152 129:170 130:101 131:310 132:33
133:1 134:151 135:46 136:170 137:65 138:179
139:92 140:446 141:136 142:403 143:146 144:228
145:39 146:311 147:134 148:347 149:188 150:113
151:71 152:115 153:98 154:6 155:183 156:90
157:119 158:152 159:173 160:87 161:65 162:247
163:175 164:167 165:172 166:147 167:237 168:474
169:141 170:309 171:12 192:5758 193:3347 194:2459
195:1713 196:739 198:3900 199:3275 200:4168 201:549
202:6350 203:6668 204:3824 205:2090 206:2424 207:2910
208:2020 209:3448 210:1835 211:792 212:1243 213:1433
214:318 215:40 216:3820 217:1157 218:232 219:133
220:639 221:330 222:141
End of report
