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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 09 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/09/0400
Analysis Summary
----------------
BGP routing table entries examined: 219746
Prefixes after maximum aggregation: 117026
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 106743
Total ASes present in the Internet Routing Table: 25120
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21885
Origin ASes announcing only one prefix: 10585
Transit ASes present in the Internet Routing Table: 3235
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (15941) 12
Prefixes from unregistered ASNs in the Routing Table: 6
Unregistered ASNs in the Routing Table: 8
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1716379840
Equivalent to 102 /8s, 77 /16s and 224 /24s
Percentage of available address space announced: 46.3
Percentage of allocated address space announced: 62.9
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 114983
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50612
Total APNIC prefixes after maximum aggregation: 20240
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 47602
Unique aggregates announced from the APNIC address blocks: 21262
APNIC Region origin ASes present in the Internet Routing Table: 2939
APNIC Prefixes per ASN: 16.20
APNIC Region origin ASes announcing only one prefix: 790
APNIC Region transit ASes present in the Internet Routing Table: 435
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 292815808
Equivalent to 17 /8s, 116 /16s and 3 /24s
Percentage of available APNIC address space announced: 72.5
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: 106096
Total ARIN prefixes after maximum aggregation: 61962
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78160
Unique aggregates announced from the ARIN address blocks: 30480
ARIN Region origin ASes present in the Internet Routing Table: 11550
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4424
ARIN Region transit ASes present in the Internet Routing Table: 1058
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 332148864
Equivalent to 19 /8s, 204 /16s and 48 /24s
Percentage of available ARIN address space announced: 73.3
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: 45460
Total RIPE prefixes after maximum aggregation: 29695
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 42010
Unique aggregates announced from the RIPE address blocks: 28055
RIPE Region origin ASes present in the Internet Routing Table: 9584
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5060
RIPE Region transit ASes present in the Internet Routing Table: 1536
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 304943744
Equivalent to 18 /8s, 45 /16s and 18 /24s
Percentage of available RIPE address space announced: 75.7
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
40960-44031
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 14981
Total LACNIC prefixes after maximum aggregation: 4112
LACNIC Deaggregation factor: 3.64
Prefixes being announced from the LACNIC address blocks: 13071
Unique aggregates announced from the LACNIC address blocks: 7171
LACNIC Region origin ASes present in the Internet Routing Table: 788
LACNIC Prefixes per ASN: 16.59
LACNIC Region origin ASes announcing only one prefix: 255
LACNIC Region transit ASes present in the Internet Routing Table: 139
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 38487040
Equivalent to 2 /8s, 75 /16s and 68 /24s
Percentage of available LACNIC address space announced: 57.4
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: 2587
Total AfriNIC prefixes after maximum aggregation: 1007
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1953
Unique aggregates announced from the AfriNIC address blocks: 1190
AfriNIC Region origin ASes present in the Internet Routing Table: 186
AfriNIC Prefixes per ASN: 10.50
AfriNIC Region origin ASes announcing only one prefix: 56
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6082816
Equivalent to 0 /8s, 92 /16s and 209 /24s
Percentage of available AfriNIC address space announced: 18.1
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 1282 9603 274 CHINANET-BACKBONE
4755 1208 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1110 79 381 Sify Limited
9498 975 469 72 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 775 35 705 Korea Telecom (ATM-MPLS)
17488 672 44 34 Hathway IP Over Cable Interne
7545 627 142 80 TPG Internet Pty Ltd
1221 543 1954 422 Telstra Pty Ltd
18101 535 116 27 Reliance Infocom Ltd Internet
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 464 799 75 China Telecom (Shanghai)
9443 453 115 74 Primus Telecommunications
7474 411 217 268 SingTel Optus Pty Ltd
4802 359 86 148 Wantree Development
17557 356 37 170 Pakistan Telecom
4837 346 4725 160 chinanet IDC center beijing n
17974 342 129 12 PT TELEKOMUNIKASI INDONESIA
2907 331 1700 302 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1497 6160 992 AT&T WorldNet Services
4323 1265 1027 361 Time Warner Telecom
2386 1131 580 752 AT&T Data Communications Serv
6478 1092 338 131 AT&T Worldnet Services
11492 1052 104 22 Cable One
6197 1033 688 504 BellSouth Network Solutions,
18566 1003 288 9 Covad Communications
174 968 6793 876 Cogent Communications
701 960 6661 733 UUNET Technologies, Inc.
20115 822 738 429 Charter Communications
1239 818 2717 579 Sprint
7011 790 226 471 Citizens Utilities
19262 770 2604 205 Verizon Global Networks
209 728 3846 582 Qwest
22773 709 1872 42 Cox Communications, Inc.
5668 600 160 17 CenturyTel Internet Holdings,
721 594 21755 271 DLA Systems Automation Center
852 589 1096 371 Telus Advanced Communications
7029 581 456 79 Alltel Information Services,
855 568 253 71 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 522 1941 416 UUNET - Commercial IP service
24863 344 47 30 LINKdotNET AS number
3301 310 1455 290 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 275 128 252 Dynamic Network Technologies,
8220 259 461 250 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
3215 238 2254 95 France Telecom Transpac
8708 235 287 228 Romania Data Systems S.A.
3269 214 2583 73 TELECOM ITALIA
3246 208 340 198 Song Networks
8551 206 196 30 Bezeq International
30890 205 17 95 SC Kappa Invexim SRL
3352 200 1783 37 Ibernet, Internet Access Netw
20858 196 34 4 EgyNet
9116 192 136 25 Goldenlines main autonomous s
1257 190 1180 168 SWIPnet Swedish IP Network
12479 185 578 6 Uni2 Autonomous System
3300 183 170 88 AUCS Communications Services
786 177 1795 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1208 1869 211 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 366 116 63 Servicios Alestra S.A de C.V
16814 362 22 8 NSS, S.A.
22047 310 238 12 VTR PUNTO NET S.A.
7303 281 143 30 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 242 17 14 Telefonica del Sur S.A.
11556 235 128 3 Cable-Wireless Panama
6147 221 166 25 Telefonica Del Peru
6503 215 172 86 AVANTEL, S.A.
20299 191 23 13 NEWCOM AMERICAS
10620 185 53 23 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
23216 157 19 42 RAMtelecom Telecomunicaciones
14522 155 25 7 SatNet S.A.
21826 155 27 59 INTERCABLE
7910 154 11 29 ANDINET ON LINE
19429 151 93 41 E.T.B.
19169 143 9 26 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 230 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 137 309 112 Tertiary Education Network
15475 129 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 119 8 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 76 174 73 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 43 13 24 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33776 31 2 6 Starcomms Nigeria Limited
8524 30 2 6 AUCEGYPT Autonomous System
21280 29 4 4 Swift Global Kenya Ltd.Is an
33766 28 2 1 Nyala Communications Pty Ltd
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1208 1136 Videsh Sanchar Nigam Ltd. Aut
11492 1052 1030 Cable One
4134 1282 1008 CHINANET-BACKBONE
8151 1208 997 UniNet S.A. de C.V.
18566 1003 994 Covad Communications
6478 1092 961 AT&T Worldnet Services
4323 1265 904 Time Warner Telecom
9498 975 903 BHARTI BT INTERNET LTD.
9583 1110 729 Sify Limited
22773 709 667 Cox Communications, Inc.
17488 672 638 Hathway IP Over Cable Interne
5668 600 583 CenturyTel Internet Holdings,
19262 770 565 Verizon Global Networks
7545 627 547 TPG Internet Pty Ltd
6197 1033 529 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 535 508 Reliance Infocom Ltd Internet
7029 581 502 Alltel Information Services,
855 568 497 Canadian Research Network
4668 507 497 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
65242 PRIVATE 64.222.142.0/24 13674 Bell Atlantic Global
64858 PRIVATE 84.36.180.0/24 20858 EgyNet
65424 PRIVATE 193.227.230.0/24 35731 Network Technology S
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
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
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
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 /9:9 /10:13 /11:34 /12:123
/13:237 /14:450 /15:863 /16:9374 /17:3839 /18:6371
/19:13465 /20:15295 /21:13841 /22:17935 /23:19202 /24:116534
/25:760 /26:821 /27:487 /28:59 /29:6 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1083 1092 AT&T Worldnet Services
11492 1038 1052 Cable One
18566 985 1003 Covad Communications
9583 948 1110 Sify Limited
2386 828 1131 AT&T Data Communications Serv
7018 806 1497 AT&T WorldNet Services
6197 794 1033 BellSouth Network Solutions,
23577 761 775 Korea Telecom (ATM-MPLS)
7011 693 790 Citizens Utilities
9498 639 975 BHARTI BT INTERNET LTD.
4755 603 1208 Videsh Sanchar Nigam Ltd. Aut
4766 590 783 Korea Telecom (KIX)
8151 585 1208 UniNet S.A. de C.V.
19916 563 568 OLM LLC
4323 524 1265 Time Warner Telecom
15270 497 530 PaeTec.net -a division of Pae
4668 496 507 LG-EDS Systems Inc.
17488 493 672 Hathway IP Over Cable Interne
855 466 568 Canadian Research Network
5668 465 600 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:72 9:1 12:1797 13:1
15:19 16:3 17:3 18:8 20:37 24:925
25:1 32:53 38:307 40:60 41:128 44:2
47:4 52:4 55:2 56:3 57:25 58:390
59:340 60:272 61:934 62:970 63:1971 64:3059
65:2362 66:3263 67:806 68:637 69:1829 70:499
71:104 72:1317 73:1 74:416 75:259 76:47
77:148 80:843 81:805 82:607 83:377 84:434
85:771 86:367 87:470 88:265 89:885 90:6
91:294 97:6 116:56 121:178 122:519 123:93
124:799 125:927 128:281 129:219 130:123 131:349
132:52 133:11 134:191 135:39 136:183 137:78
138:138 139:65 140:477 141:165 142:371 143:235
144:292 145:43 146:322 147:117 148:399 149:144
150:115 151:159 152:92 153:120 154:4 155:253
156:152 157:185 158:161 159:157 160:105 161:90
162:234 163:177 164:447 165:405 166:234 167:279
168:493 169:119 170:400 171:16 172:1 189:427
190:599 192:5762 193:3806 194:3102 195:2220 196:948
198:3751 199:3302 200:4769 201:975 202:7261 203:7474
204:3951 205:2086 206:2361 207:2876 208:2668 209:3576
210:2481 211:940 212:1318 213:1464 214:405 215:40
216:4004 217:1146 218:354 219:353 220:954 221:409
222:269
End of report
