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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 22 Jan, 2007
Analysis Summary
----------------
BGP routing table entries examined: 208252
Prefixes after maximum aggregation: 112504
Deaggregation factor: 1.85
Unique aggregates announced to Internet: 101342
Total ASes present in the Internet Routing Table: 24170
Origin-only ASes present in the Internet Routing Table: 21053
Origin ASes announcing only one prefix: 10190
Transit ASes present in the Internet Routing Table: 3117
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 27
Number of addresses announced to Internet: 1660603468
Equivalent to 98 /8s, 250 /16s and 204 /24s
Percentage of available address space announced: 44.8
Percentage of allocated address space announced: 63.6
Percentage of available address space allocated: 70.5
Total number of prefixes smaller than registry allocations: 106493
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 46386
Total APNIC prefixes after maximum aggregation: 18674
APNIC Deaggregation factor: 2.48
Prefixes being announced from the APNIC address blocks: 43848
Unique aggregates announced from the APNIC address blocks: 19097
APNIC Region origin ASes present in the Internet Routing Table: 2827
APNIC Region origin ASes announcing only one prefix: 793
APNIC Region transit ASes present in the Internet Routing Table: 418
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 275908576
Equivalent to 16 /8s, 114 /16s and 7 /24s
Percentage of available APNIC address space announced: 86.3
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: 102621
Total ARIN prefixes after maximum aggregation: 60697
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75611
Unique aggregates announced from the ARIN address blocks: 28906
ARIN Region origin ASes present in the Internet Routing Table: 11273
ARIN Region origin ASes announcing only one prefix: 4312
ARIN Region transit ASes present in the Internet Routing Table: 1038
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 313853824
Equivalent to 18 /8s, 181 /16s and 7 /24s
Percentage of available ARIN address space announced: 69.3
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, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 43079
Total RIPE prefixes after maximum aggregation: 28148
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 39776
Unique aggregates announced from the RIPE address blocks: 26524
RIPE Region origin ASes present in the Internet Routing Table: 9058
RIPE Region origin ASes announcing only one prefix: 4783
RIPE Region transit ASes present in the Internet Routing Table: 1463
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 286567076
Equivalent to 17 /8s, 20 /16s and 170 /24s
Percentage of available RIPE address space announced: 77.6
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
40960-43007
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13680
Total LACNIC prefixes after maximum aggregation: 4023
LACNIC Deaggregation factor: 3.40
Prefixes being announced from the LACNIC address blocks: 11673
Unique aggregates announced from the LACNIC address blocks: 7206
LACNIC Region origin ASes present in the Internet Routing Table: 760
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 135
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 36291584
Equivalent to 2 /8s, 41 /16s and 196 /24s
Percentage of available LACNIC address space announced: 54.1
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: 2483
Total AfriNIC prefixes after maximum aggregation: 961
AfriNIC Deaggregation factor: 2.58
Prefixes being announced from the AfriNIC address blocks: 1772
Unique aggregates announced from the AfriNIC address blocks: 1150
AfriNIC Region origin ASes present in the Internet Routing Table: 174
AfriNIC Region origin ASes announcing only one prefix: 53
AfriNIC Region transit ASes present in the Internet Routing Table: 32
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5366528
Equivalent to 0 /8s, 81 /16s and 227 /24s
Percentage of available AfriNIC address space announced: 16.0
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 1270 8655 268 CHINANET-BACKBONE
4755 1091 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1021 109 17 Sify Limited
9498 929 467 64 BHARTI BT INTERNET LTD.
23577 773 34 702 KRNIC
4766 760 4944 312 Korea Telecom (KIX)
17488 584 36 20 Hathway IP Over Cable Interne
1221 568 1697 439 Telstra Pty Ltd
7545 562 126 75 TPG Internet Pty Ltd
18101 512 103 27 Reliance Infocom Ltd Internet
17676 503 10935 66 Softbank BB Corp.
9443 442 111 74 Primus Telecommunications
4812 434 759 68 China Telecom (Shanghai)
4802 361 86 150 Wantree Development
17974 357 129 14 PT TELEKOMUNIKASI INDONESIA
17557 353 35 171 Pakistan Telecom
17849 353 33 93 Telecommunications Technology
4837 333 4071 146 chinanet IDC center beijing n
2907 332 1749 309 SINET Japan
7474 312 212 239 SingTel Optus Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1546 6129 993 AT&T WorldNet Services
2386 1065 585 732 AT&T Data Communications Serv
4323 1065 818 298 Time Warner Telecom
6197 1022 645 500 BellSouth Network Solutions,
18566 986 272 8 Covad Communications
701 938 6692 749 UUNET Technologies, Inc.
174 934 6789 865 Cogent Communications
11492 910 99 14 Cable One
1239 824 2730 578 Sprint
19262 792 2570 184 Verizon Global Networks
20115 789 685 414 Charter Communications
7011 722 214 448 Citizens Utilities
22773 717 1744 42 Cox Communications, Inc.
209 713 3750 562 Qwest
721 706 21837 285 DLA Systems Automation Center
852 609 1093 394 Telus Advanced Communications
5668 568 161 19 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 560 250 73 Canadian Research Network
6198 550 519 256 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 547 1896 426 UUNET - Commercial IP service
3301 305 1199 287 TeliaNet Sweden
3320 298 4993 249 Deutsche Telekom AG
24863 298 45 25 LINKdotNET AS number
8220 271 474 262 COLT Telecommunications
6746 269 95 246 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
3215 233 2136 96 France Telecom Transpac
8708 233 283 220 Romania Data Systems S.A.
1257 217 1073 173 SWIPnet Swedish IP Network
3269 211 2375 74 TELECOM ITALIA
30890 211 18 91 SC Kappa Invexim SRL
3246 207 354 197 Song Networks
5416 205 13 13 BATELCO-BH
8551 192 193 28 Bezeq International
20858 189 34 3 This AS will be used to conne
3300 177 171 89 AUCS Communications Services
3352 177 1767 31 Ibernet, Internet Access Netw
12479 176 578 6 Uni2 Autonomous System
786 171 1779 171 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 843 2013 203 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 394 108 81 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
14117 259 16 13 Telefonica del Sur S.A.
6471 255 74 30 ENTEL CHILE S.A.
7303 231 103 33 Telecom Argentina Stet-France
6147 226 180 24 Telefonica Del Peru
6503 217 170 92 AVANTEL, S.A.
11556 212 105 7 Cable-Wireless Panama
10481 181 72 8 Prima S.A.
21826 157 21 36 INTERCABLE
7910 150 10 33 ANDINET ON LINE
23216 146 19 43 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
19169 141 9 24 Telconet
19429 140 84 35 E.T.B.
14522 134 21 8 SatNet S.A.
7738 116 442 21 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 221 60 6 TEDATA
15475 154 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 107 6 4 EEPAD TISP TELECOM & INTERNET
2905 91 176 80 The Internetworking Company o
24835 85 48 6 RAYA Telecom - Egypt
2561 60 6 2 Egyptian Universities Network
15706 54 12 4 Sudatel Internet Exchange Aut
23889 46 12 17 MAURITIUS TELECOM
5713 41 294 34 Telkom SA Ltd
33774 38 12 22 AS Number for Telecom Algeria
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
16637 30 21 28 Johnnic e-Ventures
33776 27 2 5 Starcomms Nigeria Limited
21280 23 4 4 Swift Global Kenya Ltd.Is an
21491 21 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1091 1015 Videsh Sanchar Nigam Ltd. Aut
9583 1021 1004 Sify Limited
4134 1270 1002 CHINANET-BACKBONE
18566 986 978 Covad Communications
11492 910 896 Cable One
9498 929 865 BHARTI BT INTERNET LTD.
4323 1065 767 Time Warner Telecom
22773 717 675 Cox Communications, Inc.
8151 843 640 UniNet S.A. de C.V.
19262 792 608 Verizon Global Networks
17488 584 564 Hathway IP Over Cable Interne
5668 568 549 CenturyTel Internet Holdings,
6197 1022 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 562 487 TPG Internet Pty Ltd
855 560 487 Canadian Research Network
18101 512 485 Reliance Infocom Ltd Internet
15270 498 464 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 760 448 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
23456 UNALLOCATED 203.10.62.0/24 1221 Telstra Pty Ltd
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65313 PRIVATE 203.184.140.0/24 9304 Hutchison Telecom (H
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
116.0.0.0/24 12654 RIPE NCC RIS Project
116.50.0.0/21 12654 RIPE NCC RIS Project
116.255.0.0/16 12654 RIPE NCC RIS Project
117.0.0.0/24 12654 RIPE NCC RIS Project
117.50.0.0/21 12654 RIPE NCC RIS Project
117.255.0.0/16 12654 RIPE NCC RIS Project
118.0.0.0/24 12654 RIPE NCC RIS Project
118.50.0.0/21 12654 RIPE NCC RIS Project
118.255.0.0/16 12654 RIPE NCC RIS Project
119.0.0.0/24 12654 RIPE NCC RIS Project
119.50.0.0/21 12654 RIPE NCC RIS Project
119.255.0.0/16 12654 RIPE NCC RIS Project
120.0.0.0/24 12654 RIPE NCC RIS Project
120.50.0.0/21 12654 RIPE NCC RIS Project
120.255.0.0/16 12654 RIPE NCC RIS Project
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
172.33.1.0/24 7018 AT&T WorldNet Services
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /8:19 /9:10 /10:13 /11:32 /12:117
/13:230 /14:412 /15:810 /16:9129 /17:3649 /18:5920
/19:12912 /20:14533 /21:12995 /22:16585 /23:17830 /24:111351
/25:641 /26:463 /27:373 /28:66 /29:39 /30:90
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 969 986 Covad Communications
11492 896 910 Cable One
9583 850 1021 Sify Limited
7018 847 1546 AT&T WorldNet Services
6197 795 1022 BellSouth Network Solutions,
2386 788 1065 AT&T Data Communications Serv
23577 759 773 KRNIC
7011 626 722 Citizens Utilities
9498 587 929 BHARTI BT INTERNET LTD.
4766 569 760 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 500 1091 Videsh Sanchar Nigam Ltd. Aut
15270 466 498 PaeTec.net -a division of Pae
855 460 560 Canadian Research Network
18101 444 512 Reliance Infocom Ltd Internet
5668 437 568 CenturyTel Internet Holdings,
1239 409 824 Sprint
17488 407 584 Hathway IP Over Cable Interne
33588 400 422 Bresnan Communications, LLC.
6198 389 550 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:62 9:1 12:1660 13:1
15:15 16:3 17:3 18:5 20:36 24:871
25:1 32:54 38:275 40:57 41:60 44:2
47:10 52:4 55:1 56:3 57:24 58:292
59:361 60:199 61:953 62:1031 63:1903 64:3181
65:2303 66:3133 67:712 68:641 69:1722 70:415
71:133 72:1138 73:1 74:138 75:61 76:20
80:822 81:778 82:642 83:347 84:495 85:794
86:434 87:465 88:269 89:690 90:2 91:140
97:1 116:1 117:1 118:1 119:1 120:1
121:128 122:71 123:25 124:551 125:771 128:265
129:219 130:112 131:314 132:47 133:9 134:183
135:44 136:180 137:113 138:189 139:53 140:521
141:135 142:368 143:210 144:264 145:67 146:317
147:138 148:361 149:187 150:114 151:118 152:93
153:119 154:5 155:249 156:166 157:167 158:168
159:147 160:99 161:101 162:227 163:161 164:445
165:284 166:245 167:281 168:493 169:121 170:378
171:15 172:1 189:73 190:348 192:5737 193:3641
194:2916 195:2203 196:918 198:3782 199:3270 200:4607
201:956 202:7136 203:7280 204:3959 205:2093 206:2403
207:2895 208:2407 209:3563 210:2318 211:882 212:1288
213:1422 214:389 215:39 216:4102 217:1175 218:356
219:267 220:853 221:366 222:289
End of report
Report Website: http://thyme.apnic.net
