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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 06 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 183094
Prefixes after maximum aggregation: 100946
Deaggregation factor: 1.81
Unique aggregates announced to Internet: 91115
Total ASes present in the Internet Routing Table: 22720
Origin-only ASes present in the Internet Routing Table: 19720
Origin ASes announcing only one prefix: 9770
Transit ASes present in the Internet Routing Table: 3000
Transit-only ASes present in the Internet Routing Table: 212
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: 3
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1481380108
Equivalent to 88 /8s, 76 /16s and 17 /24s
Percentage of available address space announced: 40.0
Percentage of allocated address space announced: 54.9
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 89618
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36281
Total APNIC prefixes after maximum aggregation: 15083
APNIC Deaggregation factor: 2.41
Prefixes being announced from the APNIC address blocks: 33624
Unique aggregates announced from the APNIC address blocks: 16651
APNIC Region origin ASes present in the Internet Routing Table: 2636
APNIC Region origin ASes announcing only one prefix: 799
APNIC Region transit ASes present in the Internet Routing Table: 404
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 179513568
Equivalent to 10 /8s, 179 /16s and 40 /24s
Percentage of available APNIC address space announced: 44.5
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: 95525
Total ARIN prefixes after maximum aggregation: 57007
ARIN Deaggregation factor: 1.68
Prefixes being announced from the ARIN address blocks: 68909
Unique aggregates announced from the ARIN address blocks: 25857
ARIN Region origin ASes present in the Internet Routing Table: 10860
ARIN Region origin ASes announcing only one prefix: 4239
ARIN Region transit ASes present in the Internet Routing Table: 1009
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 300663552
Equivalent to 17 /8s, 235 /16s and 195 /24s
Percentage of available ARIN address space announced: 66.4
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: 35381
Total RIPE prefixes after maximum aggregation: 24004
RIPE Deaggregation factor: 1.47
Prefixes being announced from the RIPE address blocks: 31593
Unique aggregates announced from the RIPE address blocks: 21728
RIPE Region origin ASes present in the Internet Routing Table: 8093
RIPE Region origin ASes announcing only one prefix: 4429
RIPE Region transit ASes present in the Internet Routing Table: 1389
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 241307940
Equivalent to 14 /8s, 98 /16s and 17 /24s
Percentage of available RIPE address space announced: 65.4
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
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: 13688
Total LACNIC prefixes after maximum aggregation: 3970
LACNIC Deaggregation factor: 3.45
Prefixes being announced from the LACNIC address blocks: 11912
Unique aggregates announced from the LACNIC address blocks: 7269
LACNIC Region origin ASes present in the Internet Routing Table: 759
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: 37222912
Equivalent to 2 /8s, 55 /16s and 250 /24s
Percentage of available LACNIC address space announced: 55.5
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: 2216
Total AfriNIC prefixes after maximum aggregation: 880
AfriNIC Deaggregation factor: 2.52
Prefixes being announced from the AfriNIC address blocks: 1830
Unique aggregates announced from the AfriNIC address blocks: 1150
AfriNIC Region origin ASes present in the Internet Routing Table: 159
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: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5393152
Equivalent to 0 /8s, 82 /16s and 75 /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
4755 976 343 70 Videsh Sanchar Nigam Ltd. Aut
9498 942 467 65 BHARTI BT INTERNET LTD.
4134 600 5268 186 CHINANET-BACKBONE
17488 592 37 21 Hathway IP Over Cable Interne
1221 571 1698 440 Telstra Pty Ltd
9583 439 53 13 Sify Limited
7545 422 94 72 TPG Internet Pty Ltd
7474 375 215 254 SingTel Optus Pty Ltd
4802 359 86 149 Wantree Development
17557 354 30 164 Pakistan Telecom
4766 353 2603 123 Korea Telecom (KIX)
9443 353 79 72 Primus Telecommunications
2907 336 1749 309 SINET Japan
23577 323 12 291 Korea Telecom (ATM-MPLS)
17849 305 30 56 Telecommunications Technology
10139 301 31 6 Meridian Telekoms
2764 286 209 188 AAPT Limited
4668 254 67 9 LG-EDS Systems Inc.
4812 254 458 43 China Telecom (Shanghai)
9829 242 257 10 National Internet Backbone
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1459 6093 953 AT&T WorldNet Services
2386 1090 567 720 AT&T Data Communications Serv
18566 988 288 9 Covad Communications
6197 982 640 476 BellSouth Network Solutions,
11492 919 100 14 Cable One
174 918 6748 849 Cogent Communications
701 901 6620 716 UUNET Technologies, Inc.
4323 897 783 284 Time Warner Telecom
1239 803 2720 556 Sprint
20115 796 694 413 Charter Communications
19262 764 2590 178 Verizon Global Networks
22773 722 1870 40 Cox Communications, Inc.
7011 721 220 452 Citizens Utilities
209 682 3638 534 Qwest
721 615 15692 279 DLA Systems Automation Center
852 598 1064 386 Telus Advanced Communications
5668 577 161 17 CenturyTel Internet Holdings,
855 561 250 73 Canadian Research Network
3602 526 123 105 Sprint Canada, Inc.
6198 507 514 235 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 479 1575 389 UUNET - Commercial IP service
3301 298 985 280 TeliaNet Sweden
3320 290 4060 242 Deutsche Telekom AG
24863 282 40 22 LINKdotNET AS number
680 256 2028 250 DFN-IP service G-WiN
6746 244 91 227 Dynamic Network Technologies,
8220 236 319 228 COLT Telecommunications
3215 227 2093 84 France Telecom Transpac
8708 200 275 189 Romania Data Systems S.A.
20858 197 34 3 EgyNet
3246 191 300 181 Song Networks
30890 186 15 92 SC Kappa Invexim SRL
5416 184 12 10 BATELCO-BH
3269 183 2192 56 TELECOM ITALIA
8551 181 174 25 Bezeq International
1257 177 996 162 SWIPnet Swedish IP Network
12479 177 576 5 Uni2 Autonomous System
3300 175 155 89 AUCS Communications Services
786 170 1761 170 The JANET IP Service
3352 154 1595 23 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 978 2110 202 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 362 110 76 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 235 105 35 Telecom Argentina Stet-France
11556 235 116 6 Cable-Wireless Panama
6147 227 182 20 Telefonica Del Peru
6503 219 159 93 AVANTEL, S.A.
14117 215 14 12 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7910 152 11 32 ANDINET ON LINE
21826 149 25 54 INTERCABLE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 144 22 16 NEWCOM AMERICAS
19169 142 9 24 Telconet
19429 139 84 34 E.T.B.
14522 137 22 9 SatNet 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 197 56 4 TEDATA
2018 138 309 113 Tertiary Education Network
6713 138 127 10 Itissalat Al-MAGHRIB
33783 114 6 5 EEPAD TISP TELECOM & INTERNET
15475 105 20 3 Nile Online
5536 94 6 11 Internet Egypt Network
24835 74 44 5 RAYA Telecom - Egypt
2905 72 171 65 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
23889 52 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
15706 38 10 3 Sudatel Internet Exchange Aut
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
33774 31 11 17 AS Number for Telecom Algeria
33776 27 2 5 Starcomms Nigeria Limited
10798 23 1 14 Standard Bank of South Africa
21491 21 17 2 UTL On-line is RF broadband I
12455 19 4 2 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 988 979 Covad Communications
4755 976 906 Videsh Sanchar Nigam Ltd. Aut
11492 919 905 Cable One
9498 942 877 BHARTI BT INTERNET LTD.
8151 978 776 UniNet S.A. de C.V.
22773 722 682 Cox Communications, Inc.
4323 897 613 Time Warner Telecom
19262 764 586 Verizon Global Networks
17488 592 571 Hathway IP Over Cable Interne
5668 577 560 CenturyTel Internet Holdings,
6197 982 506 BellSouth Network Solutions,
855 561 488 Canadian Research Network
15270 503 471 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
9583 439 426 Sify Limited
3602 526 421 Sprint Canada, Inc.
4134 600 414 CHINANET-BACKBONE
33588 425 402 Bresnan Communications, LLC.
6517 416 384 Yipes Communications, Inc.
20115 796 383 Charter Communications
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
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
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 /8:18 /9:9 /10:11 /11:29 /12:101
/13:191 /14:364 /15:706 /16:8222 /17:3052 /18:4880
/19:10011 /20:11974 /21:11466 /22:14740 /23:15977 /24:100129
/25:443 /26:325 /27:223 /28:67 /29:40 /30:85
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 970 988 Covad Communications
11492 905 919 Cable One
2386 815 1090 AT&T Data Communications Serv
7018 774 1459 AT&T WorldNet Services
6197 756 982 BellSouth Network Solutions,
7011 623 721 Citizens Utilities
9498 600 942 BHARTI BT INTERNET LTD.
15270 472 503 PaeTec.net -a division of Pae
855 460 561 Canadian Research Network
5668 448 577 CenturyTel Internet Holdings,
17488 415 592 Hathway IP Over Cable Interne
33588 403 425 Bresnan Communications, LLC.
4755 401 976 Videsh Sanchar Nigam Ltd. Aut
6517 390 416 Yipes Communications, Inc.
1239 389 803 Sprint
22773 383 722 Cox Communications, Inc.
7066 378 475 Virginia Polytechnic Institut
11830 362 482 Instituto Costarricense de El
19916 351 356 OLM LLC
6198 348 507 BellSouth Network Solutions,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 6:1 7:1 8:64 9:1 12:1653
13:1 15:16 16:3 17:3 18:5 20:36
24:874 25:1 32:53 38:278 40:57 41:68
44:2 47:7 52:4 55:1 56:3 57:25
58:302 59:376 60:203 61:921 62:1030 63:1907
64:3229 65:2312 66:3117 67:711 68:644 69:1710
70:441 71:97 72:1182 73:1 74:164 75:71
76:22 77:7 80:833 81:781 82:655 83:351
84:515 85:740 86:456 87:480 88:217 89:773
90:1 91:200 97:1 116:1 117:1 118:1
119:1 120:1 121:131 122:76 123:32 124:563
125:801 128:312 129:219 130:126 131:342 132:47
133:9 134:184 135:44 136:180 137:113 138:191
139:53 140:521 141:142 142:371 143:210 144:270
145:43 146:305 147:140 148:366 149:190 150:114
151:116 152:91 153:119 154:5 155:250 156:129
157:174 158:168 159:148 160:97 161:85 162:228
163:162 164:450 165:330 166:246 167:280 168:495
169:120 170:383 171:15 172:1 189:156 190:363
192:5746 193:3677 194:2946 195:2204 196:942 198:3766
199:3283 200:4613 201:968 202:7185 203:7338 204:3961
205:2100 206:2381 207:2880 208:2454 209:3591 210:1767
End of report
Report Website: http://thyme.apnic.net
