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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 14 Sep, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/09/14/0400
Analysis Summary
----------------
BGP routing table entries examined: 231089
Prefixes after maximum aggregation: 120497
Deaggregation factor: 1.92
Unique aggregates announced to Internet: 112148
Total ASes present in the Internet Routing Table: 26187
Prefixes per ASN: 8.82
Origin-only ASes present in the Internet Routing Table: 22800
Origin ASes announcing only one prefix: 11110
Transit ASes present in the Internet Routing Table: 3387
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (43329) 20
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 4
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1776380000
Equivalent to 105 /8s, 225 /16s and 104 /24s
Percentage of available address space announced: 47.9
Percentage of allocated address space announced: 62.8
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 122893
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53800
Total APNIC prefixes after maximum aggregation: 20879
APNIC Deaggregation factor: 2.58
Prefixes being announced from the APNIC address blocks: 50723
Unique aggregates announced from the APNIC address blocks: 22494
APNIC Region origin ASes present in the Internet Routing Table: 3045
APNIC Prefixes per ASN: 16.66
APNIC Region origin ASes announcing only one prefix: 802
APNIC Region transit ASes present in the Internet Routing Table: 464
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 313657760
Equivalent to 18 /8s, 178 /16s and 9 /24s
Percentage of available APNIC address space announced: 77.7
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: 108939
Total ARIN prefixes after maximum aggregation: 63073
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 80259
Unique aggregates announced from the ARIN address blocks: 31960
ARIN Region origin ASes present in the Internet Routing Table: 11823
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4529
ARIN Region transit ASes present in the Internet Routing Table: 1089
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 344977280
Equivalent to 20 /8s, 143 /16s and 239 /24s
Percentage of available ARIN address space announced: 76.2
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: 48772
Total RIPE prefixes after maximum aggregation: 31051
RIPE Deaggregation factor: 1.57
Prefixes being announced from the RIPE address blocks: 45182
Unique aggregates announced from the RIPE address blocks: 29629
RIPE Region origin ASes present in the Internet Routing Table: 10175
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5429
RIPE Region transit ASes present in the Internet Routing Table: 1620
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 326683264
Equivalent to 19 /8s, 120 /16s and 202 /24s
Percentage of available RIPE address space announced: 74.9
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, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 16820
Total LACNIC prefixes after maximum aggregation: 4452
LACNIC Deaggregation factor: 3.78
Prefixes being announced from the LACNIC address blocks: 14911
Unique aggregates announced from the LACNIC address blocks: 7874
LACNIC Region origin ASes present in the Internet Routing Table: 863
LACNIC Prefixes per ASN: 17.28
LACNIC Region origin ASes announcing only one prefix: 281
LACNIC Region transit ASes present in the Internet Routing Table: 145
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 42254080
Equivalent to 2 /8s, 132 /16s and 191 /24s
Percentage of available LACNIC address space announced: 63.0
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: 2745
Total AfriNIC prefixes after maximum aggregation: 1030
AfriNIC Deaggregation factor: 2.67
Prefixes being announced from the AfriNIC address blocks: 2298
Unique aggregates announced from the AfriNIC address blocks: 1333
AfriNIC Region origin ASes present in the Internet Routing Table: 206
AfriNIC Prefixes per ASN: 11.16
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7459584
Equivalent to 0 /8s, 113 /16s and 211 /24s
Percentage of available AfriNIC address space announced: 22.2
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 1409 383 70 Videsh Sanchar Nigam Ltd. Aut
9583 1127 81 406 Sify Limited
4134 1077 11228 293 CHINANET-BACKBONE
9498 1001 532 64 BHARTI BT INTERNET LTD.
4766 809 5441 321 Korea Telecom (KIX)
17488 800 52 56 Hathway IP Over Cable Interne
23577 791 34 685 Korea Telecom (ATM-MPLS)
7545 723 159 120 TPG Internet Pty Ltd
18101 596 119 50 Reliance Infocom Ltd Internet
4812 548 978 96 China Telecom (Shanghai)
1221 536 1950 417 Telstra Pty Ltd
4668 516 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 484 778 115 CNCGROUP IP network: China169
9443 467 122 77 Primus Telecommunications
4802 438 117 154 Wantree Development
7474 379 216 267 SingTel Optus Pty Ltd
17974 375 130 13 PT TELEKOMUNIKASI INDONESIA
9829 359 257 10 BSNL National Internet Backbo
4837 356 5104 167 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1482 6121 995 AT&T WorldNet Services
4323 1323 990 370 Time Warner Telecom
2386 1218 635 733 AT&T Data Communications Serv
11492 1144 112 15 Cable One
6478 1135 326 164 AT&T Worldnet Services
6197 1033 718 509 BellSouth Network Solutions,
18566 1024 288 9 Covad Communications
174 974 6780 860 Cogent Communications
7011 921 279 549 Citizens Utilities
701 873 6573 678 UUNET Technologies, Inc.
20115 819 752 438 Charter Communications
1239 803 2718 565 Sprint
19262 774 2745 184 Verizon Global Networks
22773 772 2149 50 Cox Communications, Inc.
209 758 3820 598 Qwest
5668 658 176 23 CenturyTel Internet Holdings,
3356 636 10817 362 Level 3 Communications, LLC
6517 590 165 34 Yipes Communications, Inc.
852 579 1096 363 Telus Advanced Communications
15270 575 160 38 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 494 1923 396 UUNET - Commercial IP service
8764 489 200 41 LIETUVOS-TELEKOMAS Autonomous
24863 367 57 40 LINKdotNET AS number
9116 349 168 26 Goldenlines main autonomous s
3301 318 1457 296 TeliaNet Sweden
3320 315 6035 262 Deutsche Telekom AG
6746 289 130 265 Dynamic Network Technologies,
680 269 2045 257 DFN-IP service G-WiN
8551 265 252 37 Bezeq International
8708 262 420 241 Romania Data Systems S.A.
3215 258 2424 98 France Telecom Transpac
8220 256 444 239 COLT Telecommunications
3352 229 1866 39 Ibernet, Internet Access Netw
5089 224 1658 54 NTL Group Limited
3269 223 2839 73 TELECOM ITALIA
9121 214 1441 24 TTnet Autonomous System
3292 196 1379 176 TDC Tele Danmark
3300 194 172 95 AUCS Communications Services
12479 194 578 6 Uni2 Autonomous System
1257 192 1195 170 SWIPnet Swedish IP Network
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 912 1974 206 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 374 114 60 Servicios Alestra S.A de C.V
7303 349 165 53 Telecom Argentina Stet-France
6471 330 75 33 ENTEL CHILE S.A.
14522 329 28 7 SatNet S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 284 19 15 Telefonica del Sur S.A.
10481 278 104 9 Prima S.A.
11664 276 30 13 Keytech SA
10620 235 65 22 TVCABLE BOGOTA
11556 235 128 3 Cable-Wireless Panama
6147 228 178 24 Telefonica Del Peru
6503 201 170 82 AVANTEL, S.A.
23216 197 17 46 RAMtelecom Telecomunicaciones
20299 180 25 31 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
19169 171 12 18 Telconet
21826 171 30 58 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 285 870 226 The Internet Solution
8452 219 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
33783 125 8 12 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 87 48 6 RAYA Telecom - Egypt
15475 76 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 69 24 15 MAURITIUS TELECOM
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
33774 47 29 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
8524 31 2 10 AUCEGYPT Autonomous System
21280 29 4 4 Swift Global Kenya Ltd.Is an
12455 28 6 3 Jambonet Autonomous system
10798 27 16 1 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1409 1339 Videsh Sanchar Nigam Ltd. Aut
11492 1144 1129 Cable One
18566 1024 1015 Covad Communications
6478 1135 971 AT&T Worldnet Services
4323 1323 953 Time Warner Telecom
9498 1001 937 BHARTI BT INTERNET LTD.
4134 1077 784 CHINANET-BACKBONE
17488 800 744 Hathway IP Over Cable Interne
22773 772 722 Cox Communications, Inc.
9583 1127 721 Sify Limited
8151 912 706 UniNet S.A. de C.V.
5668 658 635 CenturyTel Internet Holdings,
7545 723 603 TPG Internet Pty Ltd
19262 774 590 Verizon Global Networks
6517 590 556 Yipes Communications, Inc.
18101 596 546 Reliance Infocom Ltd Internet
15270 575 537 PaeTec.net -a division of Pae
6197 1033 524 BellSouth Network Solutions,
19916 568 517 OLM LLC
4668 516 506 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64586 PRIVATE 192.170.73.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.137.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.140.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.141.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.142.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.143.0/24 4845 Chung Hsiao East Roa
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
101.13.13.0/24 8764 LIETUVOS-TELEKOMAS Autonomous
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 /10:15 /11:37 /12:135
/13:262 /14:471 /15:923 /16:9615 /17:4067 /18:6608
/19:13969 /20:16253 /21:14956 /22:19231 /23:20176 /24:121936
/25:770 /26:1030 /27:512 /28:82 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1136 1144 Cable One
6478 1134 1135 AT&T Worldnet Services
18566 1006 1024 Covad Communications
9583 969 1127 Sify Limited
2386 910 1218 AT&T Data Communications Serv
7018 819 1482 AT&T WorldNet Services
7011 813 921 Citizens Utilities
4755 788 1409 Videsh Sanchar Nigam Ltd. Aut
6197 786 1033 BellSouth Network Solutions,
23577 782 791 Korea Telecom (ATM-MPLS)
9498 673 1001 BHARTI BT INTERNET LTD.
17488 623 800 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
19916 563 568 OLM LLC
6517 556 590 Yipes Communications, Inc.
4323 555 1323 Time Warner Telecom
15270 539 575 PaeTec.net -a division of Pae
5668 523 658 CenturyTel Internet Holdings,
4668 506 516 LG-EDS Systems Inc.
18101 502 596 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:80 12:1805 13:1 15:20
16:3 17:3 18:13 20:36 24:966 25:1
32:60 33:3 38:348 40:60 41:321 44:2
47:4 52:4 55:3 56:3 57:24 58:470
59:411 60:367 61:995 62:920 63:2013 64:3193
65:2374 66:3414 67:799 68:660 69:1977 70:446
71:105 72:1413 73:4 74:650 75:259 76:131
77:345 78:397 80:832 81:867 82:612 83:365
84:621 85:841 86:343 87:517 88:290 89:982
90:24 91:547 96:1 97:6 98:2 101:1
116:314 117:170 118:19 121:289 122:604 123:175
124:670 125:988 128:271 129:212 130:139 131:364
132:55 133:9 134:197 135:34 136:188 137:82
138:154 139:74 140:505 141:173 142:384 143:255
144:300 145:46 146:331 147:124 148:414 149:148
150:111 151:159 152:87 153:119 154:3 155:263
156:161 157:218 158:158 159:173 160:118 161:95
162:175 163:182 164:485 165:396 166:283 167:298
168:516 169:122 170:389 171:22 172:2 189:73
190:1102 192:5721 193:3990 194:3192 195:2286 196:969
198:3822 199:3216 200:5276 201:1197 202:7364 203:7709
204:3924 205:1965 206:2416 207:2847 208:2828 209:3463
210:2471 211:1090 212:1314 213:1483 214:416 215:41
216:3984 217:1198 218:323 219:383 220:1013 221:413
222:261
End of report
