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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 01 May, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/05/01/0400
Analysis Summary
----------------
BGP routing table entries examined: 219238
Prefixes after maximum aggregation: 116756
Deaggregation factor: 1.88
Unique aggregates announced to Internet: 105244
Total ASes present in the Internet Routing Table: 25063
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21839
Origin ASes announcing only one prefix: 10558
Transit ASes present in the Internet Routing Table: 3224
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: 21
Max AS path prepend of ASN (20858) 18
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1716032512
Equivalent to 102 /8s, 72 /16s and 148 /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: 114613
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50395
Total APNIC prefixes after maximum aggregation: 20179
APNIC Deaggregation factor: 2.50
Prefixes being announced from the APNIC address blocks: 47436
Unique aggregates announced from the APNIC address blocks: 21143
APNIC Region origin ASes present in the Internet Routing Table: 2931
APNIC Prefixes per ASN: 16.18
APNIC Region origin ASes announcing only one prefix: 790
APNIC Region transit ASes present in the Internet Routing Table: 437
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 292427264
Equivalent to 17 /8s, 110 /16s and 22 /24s
Percentage of available APNIC address space announced: 72.4
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: 106041
Total ARIN prefixes after maximum aggregation: 61891
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78053
Unique aggregates announced from the ARIN address blocks: 30374
ARIN Region origin ASes present in the Internet Routing Table: 11526
ARIN Prefixes per ASN: 6.77
ARIN Region origin ASes announcing only one prefix: 4414
ARIN Region transit ASes present in the Internet Routing Table: 1051
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 330892160
Equivalent to 19 /8s, 185 /16s and 3 /24s
Percentage of available ARIN address space announced: 73.0
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: 45377
Total RIPE prefixes after maximum aggregation: 29561
RIPE Deaggregation factor: 1.54
Prefixes being announced from the RIPE address blocks: 41954
Unique aggregates announced from the RIPE address blocks: 26850
RIPE Region origin ASes present in the Internet Routing Table: 9551
RIPE Prefixes per ASN: 4.39
RIPE Region origin ASes announcing only one prefix: 5044
RIPE Region transit ASes present in the Internet Routing Table: 1530
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 305962368
Equivalent to 18 /8s, 60 /16s and 157 /24s
Percentage of available RIPE address space announced: 76.0
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: 14846
Total LACNIC prefixes after maximum aggregation: 4119
LACNIC Deaggregation factor: 3.60
Prefixes being announced from the LACNIC address blocks: 12930
Unique aggregates announced from the LACNIC address blocks: 7142
LACNIC Region origin ASes present in the Internet Routing Table: 786
LACNIC Prefixes per ASN: 16.45
LACNIC Region origin ASes announcing only one prefix: 253
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 38379776
Equivalent to 2 /8s, 73 /16s and 161 /24s
Percentage of available LACNIC address space announced: 57.2
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: 2571
Total AfriNIC prefixes after maximum aggregation: 1000
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1945
Unique aggregates announced from the AfriNIC address blocks: 1184
AfriNIC Region origin ASes present in the Internet Routing Table: 188
AfriNIC Prefixes per ASN: 10.35
AfriNIC Region origin ASes announcing only one prefix: 57
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6063872
Equivalent to 0 /8s, 92 /16s and 135 /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 1281 9539 273 CHINANET-BACKBONE
4755 1204 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1098 79 380 Sify Limited
9498 973 469 74 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 777 35 706 Korea Telecom (ATM-MPLS)
17488 672 44 34 Hathway IP Over Cable Interne
7545 627 142 80 TPG Internet Pty Ltd
1221 545 1954 424 Telstra Pty Ltd
18101 531 116 28 Reliance Infocom Ltd Internet
4668 507 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4812 465 799 75 China Telecom (Shanghai)
9443 459 115 75 Primus Telecommunications
7474 408 217 270 SingTel Optus Pty Ltd
9829 358 274 14 BSNL National Internet Backbo
17557 358 35 170 Pakistan Telecom
4802 357 86 146 Wantree Development
4837 346 4725 160 chinanet IDC center beijing n
17974 336 129 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1490 6126 990 AT&T WorldNet Services
4323 1262 1022 359 Time Warner Telecom
2386 1137 580 755 AT&T Data Communications Serv
6478 1090 337 137 AT&T Worldnet Services
11492 1045 103 21 Cable One
6197 1036 688 503 BellSouth Network Solutions,
18566 1001 288 9 Covad Communications
174 961 6793 874 Cogent Communications
701 937 6660 730 UUNET Technologies, Inc.
20115 822 734 426 Charter Communications
1239 818 2717 579 Sprint
7011 787 226 469 Citizens Utilities
209 728 3749 583 Qwest
19262 725 2587 174 Verizon Global Networks
22773 707 1871 40 Cox Communications, Inc.
721 615 21756 273 DLA Systems Automation Center
5668 595 160 17 CenturyTel Internet Holdings,
852 590 1096 375 Telus Advanced Communications
7029 576 456 81 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
702 510 1940 404 UUNET - Commercial IP service
24863 343 47 31 LINKdotNET AS number
3352 342 1799 33 Ibernet, Internet Access Netw
3301 309 1455 289 TeliaNet Sweden
3320 302 4993 250 Deutsche Telekom AG
6746 273 127 250 Dynamic Network Technologies,
8220 260 461 251 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
3215 240 2256 92 France Telecom Transpac
8708 236 287 229 Romania Data Systems S.A.
3269 215 2583 73 TELECOM ITALIA
3246 206 339 196 Song Networks
8551 206 196 30 Bezeq International
20858 196 34 4 EgyNet
1257 190 1180 168 SWIPnet Swedish IP Network
30890 189 15 94 SC Kappa Invexim SRL
9116 188 134 24 Goldenlines main autonomous s
12479 185 578 6 Uni2 Autonomous System
3300 183 171 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 1117 1869 209 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 363 116 63 Servicios Alestra S.A de C.V
16814 362 22 8 NSS, S.A.
22047 311 238 12 VTR PUNTO NET S.A.
7303 270 143 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 216 172 86 AVANTEL, S.A.
20299 192 23 14 NEWCOM AMERICAS
10620 185 53 23 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 155 27 59 INTERCABLE
7910 154 11 29 ANDINET ON LINE
19429 150 92 40 E.T.B.
14522 146 22 5 SatNet S.A.
19169 142 9 27 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 227 188 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 117 7 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 76 174 68 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 51 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
33766 29 2 1 Nyala Communications Pty Ltd
21280 27 4 4 Swift Global Kenya Ltd.Is an
12455 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1204 1132 Videsh Sanchar Nigam Ltd. Aut
11492 1045 1024 Cable One
4134 1281 1008 CHINANET-BACKBONE
18566 1001 992 Covad Communications
6478 1090 953 AT&T Worldnet Services
8151 1117 908 UniNet S.A. de C.V.
4323 1262 903 Time Warner Telecom
9498 973 899 BHARTI BT INTERNET LTD.
9583 1098 718 Sify Limited
22773 707 667 Cox Communications, Inc.
17488 672 638 Hathway IP Over Cable Interne
5668 595 578 CenturyTel Internet Holdings,
19262 725 551 Verizon Global Networks
7545 627 547 TPG Internet Pty Ltd
6197 1036 533 BellSouth Network Solutions,
19916 568 517 OLM LLC
18101 531 503 Reliance Infocom Ltd Internet
855 568 497 Canadian Research Network
4668 507 497 LG-EDS Systems Inc.
7029 576 495 Alltel Information Services,
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
64858 PRIVATE 84.36.180.0/24 20858 EgyNet
64982 PRIVATE 89.207.224.0/24 36385 Google Incorporated
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
64512 PRIVATE 208.103.63.0/24 32703 Indiana Fiber Networ
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
2.0.0.0/24 41856 Flagmanskaya Sluzhba Svyazi
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 /8:20 /9:9 /10:13 /11:34 /12:122
/13:238 /14:448 /15:859 /16:9378 /17:3843 /18:6335
/19:13422 /20:15278 /21:13825 /22:17858 /23:19185 /24:116227
/25:760 /26:823 /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 1081 1090 AT&T Worldnet Services
11492 1031 1045 Cable One
18566 983 1001 Covad Communications
9583 936 1098 Sify Limited
2386 832 1137 AT&T Data Communications Serv
7018 807 1490 AT&T WorldNet Services
6197 797 1036 BellSouth Network Solutions,
23577 763 777 Korea Telecom (ATM-MPLS)
7011 690 787 Citizens Utilities
9498 636 973 BHARTI BT INTERNET LTD.
4755 599 1204 Videsh Sanchar Nigam Ltd. Aut
4766 589 783 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 522 1262 Time Warner Telecom
4668 496 507 LG-EDS Systems Inc.
8151 496 1117 UniNet S.A. de C.V.
15270 494 527 PaeTec.net -a division of Pae
17488 493 672 Hathway IP Over Cable Interne
855 466 568 Canadian Research Network
5668 460 595 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:9 7:1 8:78 9:1 12:1806
15:19 16:3 17:3 18:8 20:37 24:926
25:1 32:53 38:301 40:57 41:126 44:2
47:4 52:4 55:2 56:3 57:26 58:388
59:371 60:270 61:922 62:963 63:1959 64:3096
65:2336 66:3254 67:801 68:640 69:1825 70:500
71:104 72:1283 73:1 74:407 75:257 76:38
77:175 80:918 81:850 82:597 83:373 84:434
85:744 86:361 87:462 88:260 89:857 90:24
91:267 97:6 116:48 121:176 122:519 123:96
124:792 125:915 128:276 129:218 130:122 131:347
132:52 133:10 134:193 135:39 136:181 137:78
138:196 139:64 140:480 141:168 142:370 143:213
144:291 145:43 146:321 147:145 148:397 149:142
150:115 151:145 152:92 153:120 154:4 155:253
156:155 157:183 158:161 159:155 160:104 161:89
162:234 163:146 164:452 165:408 166:234 167:279
168:491 169:120 170:399 171:16 172:1 189:332
190:579 192:5758 193:3796 194:3094 195:2212 196:945
198:3752 199:3297 200:4750 201:982 202:7225 203:7437
204:3954 205:2085 206:2377 207:2889 208:2628 209:3610
210:2471 211:936 212:1307 213:1459 214:394 215:41
216:4004 217:1138 218:355 219:346 220:944 221:396
222:272
End of report
