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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 14 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 237694
Prefixes after maximum aggregation: 122580
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 115925
Total ASes present in the Internet Routing Table: 26632
Prefixes per ASN: 8.93
Origin-only ASes present in the Internet Routing Table: 23195
Origin ASes announcing only one prefix: 11278
Transit ASes present in the Internet Routing Table: 3437
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 28
Max AS path prepend of ASN (35389) 25
Prefixes from unregistered ASNs in the Routing Table: 13
Unregistered ASNs in the Routing Table: 7
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1791993216
Equivalent to 106 /8s, 207 /16s and 165 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 110582
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55402
Total APNIC prefixes after maximum aggregation: 21178
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 52290
Unique aggregates announced from the APNIC address blocks: 23183
APNIC Region origin ASes present in the Internet Routing Table: 3081
APNIC Prefixes per ASN: 16.97
APNIC Region origin ASes announcing only one prefix: 803
APNIC Region transit ASes present in the Internet Routing Table: 468
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 324383936
Equivalent to 19 /8s, 85 /16s and 180 /24s
Percentage of available APNIC address space announced: 74.2
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, 114/7, 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: 111601
Total ARIN prefixes after maximum aggregation: 63815
ARIN Deaggregation factor: 1.75
Prefixes being announced from the ARIN address blocks: 82435
Unique aggregates announced from the ARIN address blocks: 32725
ARIN Region origin ASes present in the Internet Routing Table: 11927
ARIN Prefixes per ASN: 6.91
ARIN Region origin ASes announcing only one prefix: 4589
ARIN Region transit ASes present in the Internet Routing Table: 1118
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 353235840
Equivalent to 21 /8s, 13 /16s and 243 /24s
Percentage of available ARIN address space announced: 78.0
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, 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: 49659
Total RIPE prefixes after maximum aggregation: 31925
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 46564
Unique aggregates announced from the RIPE address blocks: 30773
RIPE Region origin ASes present in the Internet Routing Table: 10457
RIPE Prefixes per ASN: 4.45
RIPE Region origin ASes announcing only one prefix: 5538
RIPE Region transit ASes present in the Internet Routing Table: 1633
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 336420992
Equivalent to 20 /8s, 13 /16s and 96 /24s
Percentage of available RIPE address space announced: 77.1
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
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 17781
Total LACNIC prefixes after maximum aggregation: 4576
LACNIC Deaggregation factor: 3.89
Prefixes being announced from the LACNIC address blocks: 15692
Unique aggregates announced from the LACNIC address blocks: 8740
LACNIC Region origin ASes present in the Internet Routing Table: 875
LACNIC Prefixes per ASN: 17.93
LACNIC Region origin ASes announcing only one prefix: 282
LACNIC Region transit ASes present in the Internet Routing Table: 149
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 46029824
Equivalent to 2 /8s, 190 /16s and 92 /24s
Percentage of available LACNIC address space announced: 45.7
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3230
Total AfriNIC prefixes after maximum aggregation: 1072
AfriNIC Deaggregation factor: 3.01
Prefixes being announced from the AfriNIC address blocks: 2382
Unique aggregates announced from the AfriNIC address blocks: 1404
AfriNIC Region origin ASes present in the Internet Routing Table: 211
AfriNIC Prefixes per ASN: 11.29
AfriNIC Region origin ASes announcing only one prefix: 66
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 8169728
Equivalent to 0 /8s, 124 /16s and 169 /24s
Percentage of available AfriNIC address space announced: 24.3
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 1476 383 69 Videsh Sanchar Nigam Ltd. Aut
4134 1101 11564 302 CHINANET-BACKBONE
9583 1089 81 423 Sify Limited
9498 1047 549 64 BHARTI BT INTERNET LTD.
17488 879 57 70 Hathway IP Over Cable Interne
4766 816 5474 329 Korea Telecom (KIX)
23577 779 34 680 Korea Telecom (ATM-MPLS)
7545 721 159 123 TPG Internet Pty Ltd
18101 609 119 53 Reliance Infocom Ltd Internet
1221 543 1951 423 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 524 866 77 China Telecom (Shanghai)
4668 521 68 10 LG-EDS Systems Inc.
17676 504 10919 64 Softbank BB Corp.
4808 497 799 122 CNCGROUP IP network: China169
4802 481 130 141 Wantree Development
9443 440 121 70 Primus Telecommunications
17974 401 146 14 PT TELEKOMUNIKASI INDONESIA
7474 383 202 269 SingTel Optus Pty Ltd
4837 356 5050 168 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1500 6146 1011 AT&T WorldNet Services
4323 1366 1014 359 Time Warner Telecom
2386 1262 632 772 AT&T Data Communications Serv
11492 1169 121 43 Cable One
6478 1122 329 181 AT&T Worldnet Services
18566 1031 288 9 Covad Communications
6197 1030 719 509 BellSouth Network Solutions,
7011 985 291 568 Citizens Utilities
174 977 6864 842 Cogent Communications
701 899 6571 704 UUNET Technologies, Inc.
20115 849 774 457 Charter Communications
3356 829 10887 412 Level 3 Communications, LLC
22773 816 2133 54 Cox Communications, Inc.
19262 811 2925 182 Verizon Global Networks
1239 802 2713 558 Sprint
209 730 3784 573 Qwest
5668 664 176 17 CenturyTel Internet Holdings,
15270 600 161 41 PaeTec.net -a division of Pae
3561 588 2324 370 Savvis
6517 587 163 33 Yipes Communications, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 469 1917 382 UUNET - Commercial IP service
9116 349 184 28 Goldenlines main autonomous s
8551 326 314 40 Bezeq International
3301 316 1441 293 TeliaNet Sweden
3320 316 6035 262 Deutsche Telekom AG
8866 275 62 25 Bulgarian Telecommunication C
6746 274 129 252 Dynamic Network Technologies,
8708 274 421 245 Romania Data Systems S.A.
680 268 2045 254 DFN-IP service G-WiN
8452 268 188 7 TEDATA
3215 265 2519 91 France Telecom Transpac
8220 255 444 236 COLT Telecommunications
3352 235 1932 41 Ibernet, Internet Access Netw
3269 229 2967 71 TELECOM ITALIA
9121 210 1442 25 TTnet Autonomous System
3300 198 171 93 AUCS Communications Services
3246 195 257 185 Song Networks
12479 195 578 6 Uni2 Autonomous System
1257 194 1195 177 SWIPnet Swedish IP Network
3292 193 1380 177 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1160 2419 216 UniNet S.A. de C.V.
11830 539 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 381 33 8 SatNet S.A.
7303 376 182 56 Telecom Argentina Stet-France
11172 374 114 60 Servicios Alestra S.A de C.V
6471 358 85 38 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima S.A.
14117 285 19 15 Telefonica del Sur S.A.
10620 254 71 43 TVCABLE BOGOTA
6147 242 182 20 Telefonica Del Peru
11556 236 128 4 Cable-Wireless Panama
23216 220 18 48 RAMtelecom Telecomunicaciones
6503 218 187 86 AVANTEL, S.A.
28573 214 314 27 NET Servicos de Comunicao S.A
7738 206 538 24 Telecomunicacoes da Bahia S.A
20299 188 33 30 NEWCOM AMERICAS
21826 186 33 47 INTERCABLE
19169 182 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 384 60 41 LINKdotNET AS number
3741 281 869 226 The Internet Solution
20858 198 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 126 8 12 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 81 84 4 Nile Online
2905 76 176 73 The Internetworking Company o
23889 76 24 15 MAURITIUS TELECOM
20484 64 5 6 Yalla Online Autonomous Syste
15706 58 12 4 Sudatel Internet Exchange Aut
29571 55 11 7 Ci Telecom Autonomous system
33774 48 33 26 AS Number for Telecom Algeria
5713 46 422 36 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
16637 31 21 29 Johnnic e-Ventures
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1476 1407 Videsh Sanchar Nigam Ltd. Aut
11492 1169 1126 Cable One
18566 1031 1022 Covad Communications
4323 1366 1007 Time Warner Telecom
9498 1047 983 BHARTI BT INTERNET LTD.
8151 1160 944 UniNet S.A. de C.V.
6478 1122 941 AT&T Worldnet Services
17488 879 809 Hathway IP Over Cable Interne
4134 1101 799 CHINANET-BACKBONE
22773 816 762 Cox Communications, Inc.
9583 1089 666 Sify Limited
5668 664 647 CenturyTel Internet Holdings,
19262 811 629 Verizon Global Networks
7545 721 598 TPG Internet Pty Ltd
15270 600 559 PaeTec.net -a division of Pae
18101 609 556 Reliance Infocom Ltd Internet
6517 587 554 Yipes Communications, Inc.
11830 539 530 Instituto Costarricense de El
19916 569 522 OLM LLC
6197 1030 521 BellSouth Network Solutions,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64999 PRIVATE 78.24.120.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.122.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.124.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.125.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.126.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.127.0/24 3257 Tiscali Intl Network
65068 PRIVATE 79.171.184.0/21 43895 *
64718 PRIVATE 81.200.197.0/24 25325 AS of Deutsche Bahn
64718 PRIVATE 81.200.198.0/23 25325 AS of Deutsche Bahn
64719 PRIVATE 81.200.204.0/24 25325 AS of Deutsche Bahn
65300 PRIVATE 216.243.221.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.222.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.223.0/24 11320 Internet Express, In
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
50.50.50.0/24 9730 The Best ISP to go Multimedia
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
172.14.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
172.15.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
172.33.1.0/24 7018 AT&T WorldNet Services
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 /10:16 /11:39 /12:136
/13:271 /14:485 /15:948 /16:9715 /17:4192 /18:6767
/19:14670 /20:16753 /21:15656 /22:19873 /23:20885 /24:124763
/25:814 /26:1013 /27:544 /28:114 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1160 1169 Cable One
6478 1121 1122 AT&T Worldnet Services
18566 1013 1031 Covad Communications
2386 954 1262 AT&T Data Communications Serv
9583 933 1089 Sify Limited
7011 872 985 Citizens Utilities
4755 849 1476 Videsh Sanchar Nigam Ltd. Aut
7018 825 1500 AT&T WorldNet Services
6197 773 1030 BellSouth Network Solutions,
23577 770 779 Korea Telecom (ATM-MPLS)
9498 731 1047 BHARTI BT INTERNET LTD.
17488 694 879 Hathway IP Over Cable Interne
4766 606 816 Korea Telecom (KIX)
4323 579 1366 Time Warner Telecom
19916 564 569 OLM LLC
15270 562 600 PaeTec.net -a division of Pae
6517 543 587 Yipes Communications, Inc.
5668 522 664 CenturyTel Internet Holdings,
4668 511 521 LG-EDS Systems Inc.
18101 509 609 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1830 15:19 16:3 17:6
18:13 20:35 24:994 25:1 32:63 33:3
38:360 40:64 41:390 44:2 47:8 50:1
52:3 55:3 56:3 57:21 58:479 59:413
60:384 61:987 62:939 63:1980 64:3299 65:2373
66:3592 67:909 68:679 69:2016 70:466 71:106
72:1437 73:7 74:760 75:264 76:153 77:420
78:272 79:11 80:876 81:793 82:579 83:350
84:617 85:824 86:358 87:597 88:283 89:1018
90:39 91:741 92:5 96:2 97:6 98:11
116:430 117:224 118:44 121:338 122:642 123:207
124:711 125:1043 128:309 129:195 130:142 131:369
132:56 133:9 134:194 135:34 136:192 137:82
138:152 139:74 140:516 141:146 142:373 143:258
144:323 145:48 146:326 147:125 148:486 149:184
150:169 151:137 152:95 153:121 154:11 155:261
156:164 157:224 158:160 159:197 160:155 161:101
162:190 163:184 164:497 165:405 166:290 167:309
168:513 169:130 170:420 171:29 172:5 189:116
190:1200 192:5725 193:4036 194:3202 195:2446 196:927
198:3804 199:3227 200:5250 201:1252 202:7477 203:7832
204:3981 205:2001 206:2421 207:2781 208:2955 209:3596
210:2492 211:1079 212:1308 213:1536 214:419 215:44
216:4095 217:1189 218:320 219:399 220:1016 221:407
222:266
End of report
