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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 09 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 210581
Prefixes after maximum aggregation: 113282
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 102305
Total ASes present in the Internet Routing Table: 24312
Origin-only ASes present in the Internet Routing Table: 21168
Origin ASes announcing only one prefix: 10234
Transit ASes present in the Internet Routing Table: 3144
Transit-only ASes present in the Internet Routing Table: 79
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: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1674326188
Equivalent to 99 /8s, 204 /16s and 48 /24s
Percentage of available address space announced: 45.2
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 108014
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 47354
Total APNIC prefixes after maximum aggregation: 18843
APNIC Deaggregation factor: 2.51
Prefixes being announced from the APNIC address blocks: 44656
Unique aggregates announced from the APNIC address blocks: 19532
APNIC Region origin ASes present in the Internet Routing Table: 2841
APNIC Region origin ASes announcing only one prefix: 786
APNIC Region transit ASes present in the Internet Routing Table: 425
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 283483136
Equivalent to 16 /8s, 229 /16s and 156 /24s
Percentage of available APNIC address space announced: 70.2
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, 116/6, 120/6, 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: 103077
Total ARIN prefixes after maximum aggregation: 60950
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75940
Unique aggregates announced from the ARIN address blocks: 29242
ARIN Region origin ASes present in the Internet Routing Table: 11322
ARIN Region origin ASes announcing only one prefix: 4332
ARIN Region transit ASes present in the Internet Routing Table: 1049
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 316786560
Equivalent to 18 /8s, 225 /16s and 199 /24s
Percentage of available ARIN address space announced: 69.9
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: 43694
Total RIPE prefixes after maximum aggregation: 28490
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40399
Unique aggregates announced from the RIPE address blocks: 26833
RIPE Region origin ASes present in the Internet Routing Table: 9129
RIPE Region origin ASes announcing only one prefix: 4810
RIPE Region transit ASes present in the Internet Routing Table: 1466
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 288859940
Equivalent to 17 /8s, 55 /16s and 167 /24s
Percentage of available RIPE address space announced: 78.3
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: 13901
Total LACNIC prefixes after maximum aggregation: 4035
LACNIC Deaggregation factor: 3.45
Prefixes being announced from the LACNIC address blocks: 11969
Unique aggregates announced from the LACNIC address blocks: 7164
LACNIC Region origin ASes present in the Internet Routing Table: 761
LACNIC Region origin ASes announcing only one prefix: 250
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37375744
Equivalent to 2 /8s, 58 /16s and 79 /24s
Percentage of available LACNIC address space announced: 55.7
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: 2552
Total AfriNIC prefixes after maximum aggregation: 962
AfriNIC Deaggregation factor: 2.65
Prefixes being announced from the AfriNIC address blocks: 1838
Unique aggregates announced from the AfriNIC address blocks: 1166
AfriNIC Region origin ASes present in the Internet Routing Table: 179
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5401856
Equivalent to 0 /8s, 82 /16s and 109 /24s
Percentage of available AfriNIC address space announced: 16.1
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 1283 8686 278 CHINANET-BACKBONE
4755 1103 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1033 109 16 Sify Limited
9498 943 467 65 BHARTI BT INTERNET LTD.
23577 777 35 704 Korea Telecom (ATM-MPLS)
4766 764 4944 313 Korea Telecom (KIX)
17488 593 39 22 Hathway IP Over Cable Interne
1221 573 1698 442 Telstra Pty Ltd
7545 564 126 74 TPG Internet Pty Ltd
18101 520 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
9443 441 111 73 Primus Telecommunications
4812 440 763 71 China Telecom (Shanghai)
7474 378 215 255 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 359 86 149 Wantree Development
17557 359 34 167 Pakistan Telecom
17974 346 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 309 SINET Japan
4837 336 4151 148 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1501 6125 984 AT&T WorldNet Services
2386 1108 570 733 AT&T Data Communications Serv
4323 1064 821 303 Time Warner Telecom
6197 1026 651 504 BellSouth Network Solutions,
18566 988 288 9 Covad Communications
701 942 6696 748 UUNET Technologies, Inc.
174 937 6792 865 Cogent Communications
11492 935 100 15 Cable One
1239 825 2730 577 Sprint
20115 799 698 413 Charter Communications
7011 783 227 474 Citizens Utilities
19262 758 2591 179 Verizon Global Networks
22773 725 1872 41 Cox Communications, Inc.
209 718 3742 564 Qwest
721 672 21820 278 DLA Systems Automation Center
852 604 1091 392 Telus Advanced Communications
5668 576 161 17 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 561 250 73 Canadian Research Network
6198 554 526 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1897 424 UUNET - Commercial IP service
3301 307 1199 289 TeliaNet Sweden
24863 307 45 25 LINKdotNET AS number
3320 297 4993 248 Deutsche Telekom AG
8220 270 472 262 COLT Telecommunications
6746 266 95 245 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
8708 240 284 226 Romania Data Systems S.A.
3215 238 2224 92 France Telecom Transpac
1257 223 1100 172 SWIPnet Swedish IP Network
5416 215 14 15 BATELCO-BH
30890 215 19 92 SC Kappa Invexim SRL
3269 212 2391 71 TELECOM ITALIA
3246 208 355 198 Song Networks
8551 201 194 29 Bezeq International
20858 197 34 3 EgyNet
3352 194 1767 31 Ibernet, Internet Access Netw
3300 178 171 88 AUCS Communications Services
12479 178 578 6 Uni2 Autonomous System
786 172 1779 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 985 2110 202 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 364 110 77 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 254 74 30 ENTEL CHILE S.A.
7303 245 142 30 Telecom Argentina Stet-France
14117 239 16 13 Telefonica del Sur S.A.
11556 235 116 6 Cable-Wireless Panama
6147 227 182 20 Telefonica Del Peru
6503 221 175 92 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
7910 151 10 33 ANDINET ON LINE
21826 151 26 56 INTERCABLE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 145 22 17 NEWCOM AMERICAS
19169 142 9 24 Telconet
14522 140 22 9 SatNet S.A.
19429 139 84 34 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 237 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 114 6 5 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 63 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 52 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 39 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
10798 23 1 14 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1103 1027 Videsh Sanchar Nigam Ltd. Aut
9583 1033 1017 Sify Limited
4134 1283 1005 CHINANET-BACKBONE
18566 988 979 Covad Communications
11492 935 920 Cable One
9498 943 878 BHARTI BT INTERNET LTD.
8151 985 783 UniNet S.A. de C.V.
4323 1064 761 Time Warner Telecom
22773 725 684 Cox Communications, Inc.
19262 758 579 Verizon Global Networks
17488 593 571 Hathway IP Over Cable Interne
5668 576 559 CenturyTel Internet Holdings,
6197 1026 522 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 520 497 Reliance Infocom Ltd Internet
7545 564 490 TPG Internet Pty Ltd
855 561 488 Canadian Research Network
15270 505 471 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 764 451 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
42.205.192.0/20 36925 Meditelecom
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 /11:33 /12:116
/13:226 /14:421 /15:818 /16:9212 /17:3707 /18:6061
/19:13064 /20:14680 /21:13137 /22:16949 /23:17981 /24:112329
/25:685 /26:479 /27:408 /28:68 /29:42 /30:90
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 970 988 Covad Communications
11492 921 935 Cable One
9583 863 1033 Sify Limited
2386 831 1108 AT&T Data Communications Serv
7018 809 1501 AT&T WorldNet Services
6197 795 1026 BellSouth Network Solutions,
23577 763 777 Korea Telecom (ATM-MPLS)
7011 682 783 Citizens Utilities
9498 602 943 BHARTI BT INTERNET LTD.
4766 572 764 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 511 1103 Videsh Sanchar Nigam Ltd. Aut
15270 473 505 PaeTec.net -a division of Pae
855 460 561 Canadian Research Network
18101 451 520 Reliance Infocom Ltd Internet
5668 447 576 CenturyTel Internet Holdings,
17488 415 593 Hathway IP Over Cable Interne
33588 410 432 Bresnan Communications, LLC.
1239 404 825 Sprint
6198 391 554 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 6:1 7:1 8:64 9:1 12:1655
13:1 15:16 16:3 17:3 18:5 20:36
24:882 25:1 32:53 38:279 40:57 41:69
44:2 47:7 52:4 55:1 56:3 57:25
58:303 59:376 60:203 61:919 62:1023 63:1904
64:3243 65:2315 66:3109 67:721 68:654 69:1714
70:447 71:96 72:1184 73:1 74:159 75:77
77:16 80:837 81:777 82:660 83:359 84:515
85:751 86:467 87:479 88:225 89:787 90:1
91:197 97:1 116:1 117:1 118:1 119:1
120:1 121:136 122:83 123:36 124:575 125:796
128:310 129:219 130:130 131:341 132:49 133:9
134:185 135:45 136:180 137:113 138:196 139:54
140:515 141:141 142:370 143:215 144:270 145:43
146:313 147:144 148:365 149:190 150:115 151:116
152:92 153:119 154:5 155:250 156:128 157:174
158:168 159:149 160:98 161:88 162:229 163:163
164:450 165:329 166:246 167:280 168:496 169:120
170:383 171:15 172:1 189:156 190:389 192:5750
193:3684 194:2952 195:2211 196:941 198:3754 199:3277
200:4609 201:968 202:7200 203:7371 204:3966 205:2090
206:2407 207:2886 208:2458 209:3593 210:2373 211:888
212:1299 213:1411 214:394 215:39 216:4057 217:1156
218:352 219:266 220:856 221:371 222:265
End of report
Report Website: http://thyme.apnic.net
