Routing Table Report 00:00 GMT Sat 22 Nov, 2008
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 280797
Prefixes after maximum aggregation: 133234
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 132647
Total ASes present in the Internet Routing Table: 29930
Prefixes per ASN: 9.38
Origin-only ASes present in the Internet Routing Table: 25962
Origin ASes announcing only one prefix: 12651
Transit ASes present in the Internet Routing Table: 3968
Transit-only ASes present in the Internet Routing Table: 92
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 21
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 536
Unregistered ASNs in the Routing Table: 200
Number of 32-bit ASNs allocated by the RIRs: 65
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 5
Prefixes being announced from unallocated address space: 201
Number of addresses announced to Internet: 1960774300
Equivalent to 116 /8s, 223 /16s and 10 /24s
Percentage of available address space announced: 52.9
Percentage of allocated address space announced: 63.2
Percentage of available address space allocated: 83.7
Percentage of address space in use by end-sites: 74.4
Total number of prefixes smaller than registry allocations: 139521
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 66037
Total APNIC prefixes after maximum aggregation: 23234
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 62991
Unique aggregates announced from the APNIC address blocks: 26519
APNIC Region origin ASes present in the Internet Routing Table: 3470
APNIC Prefixes per ASN: 18.15
APNIC Region origin ASes announcing only one prefix: 944
APNIC Region transit ASes present in the Internet Routing Table: 539
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 385452832
Equivalent to 22 /8s, 249 /16s and 139 /24s
Percentage of available APNIC address space announced: 76.6
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 110/8, 111/8, 112/8,
113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8,
120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8,
202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8,
221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 124542
Total ARIN prefixes after maximum aggregation: 66319
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 92989
Unique aggregates announced from the ARIN address blocks: 34778
ARIN Region origin ASes present in the Internet Routing Table: 12639
ARIN Prefixes per ASN: 7.36
ARIN Region origin ASes announcing only one prefix: 4865
ARIN Region transit ASes present in the Internet Routing Table: 1251
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 401319425
Equivalent to 23 /8s, 235 /16s and 166 /24s
Percentage of available ARIN address space announced: 82.5
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, 46080-47103
ARIN Address Blocks 24/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8,
69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
76/8, 96/8, 97/8, 98/8, 99/8, 173/8, 174/8,
199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8,
216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 61246
Total RIPE prefixes after maximum aggregation: 36340
RIPE Deaggregation factor: 1.69
Prefixes being announced from the RIPE address blocks: 57228
Unique aggregates announced from the RIPE address blocks: 37332
RIPE Region origin ASes present in the Internet Routing Table: 12237
RIPE Prefixes per ASN: 4.68
RIPE Region origin ASes announcing only one prefix: 6429
RIPE Region transit ASes present in the Internet Routing Table: 1891
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 379585767
Equivalent to 22 /8s, 160 /16s and 4 /24s
Percentage of available RIPE address space announced: 87.0
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
40960-45055, 47104-49151
RIPE Address Blocks 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 193/8,
194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 24175
Total LACNIC prefixes after maximum aggregation: 5548
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 22210
Unique aggregates announced from the LACNIC address blocks: 11400
LACNIC Region origin ASes present in the Internet Routing Table: 1035
LACNIC Prefixes per ASN: 21.46
LACNIC Region origin ASes announcing only one prefix: 331
LACNIC Region transit ASes present in the Internet Routing Table: 171
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 58365710
Equivalent to 3 /8s, 122 /16s and 151 /24s
Percentage of available LACNIC address space announced: 58.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 4269
Total AfriNIC prefixes after maximum aggregation: 1362
AfriNIC Deaggregation factor: 3.13
Prefixes being announced from the AfriNIC address blocks: 4556
Unique aggregates announced from the AfriNIC address blocks: 2173
AfriNIC Region origin ASes present in the Internet Routing Table: 271
AfriNIC Prefixes per ASN: 16.81
AfriNIC Region origin ASes announcing only one prefix: 82
AfriNIC Region transit ASes present in the Internet Routing Table: 55
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 12954240
Equivalent to 0 /8s, 197 /16s and 170 /24s
Percentage of available AfriNIC address space announced: 25.7
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4538 3357 3245 44 China Education and Research
17488 1425 100 114 Hathway IP Over Cable Interne
4755 1179 563 102 Videsh Sanchar Nigam Ltd. Aut
9583 1150 87 479 Sify Limited
4766 1026 6409 366 Korea Telecom (KIX)
4134 909 14768 369 CHINANET-BACKBONE
18101 788 167 31 Reliance Infocom Ltd Internet
23577 767 33 688 Korea Telecom (ATM-MPLS)
4780 735 357 63 Digital United Inc.
9498 690 295 50 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4366 3431 338 bellsouth.net, inc.
6298 2156 333 634 Cox Communicatons
20115 1841 1461 735 Charter Communications
1785 1704 717 155 AppliedTheory Corporation
6478 1677 369 200 AT&T Worldnet Services
2386 1590 676 908 AT&T Data Communications Serv
4323 1587 1068 376 Time Warner Telecom
7018 1406 9925 967 AT&T WorldNet Services
1803 1342 9 1073 SPRINT
11492 1217 192 12 Cable One
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3292 437 1766 382 TDC Tele Danmark
12479 370 578 6 Uni2 Autonomous System
30890 366 95 188 SC Kappa Invexim SRL
3301 338 1429 307 TeliaNet Sweden
29049 338 26 3 AzerSat LLC.
8866 337 111 23 Bulgarian Telecommunication C
5462 325 794 27 Telewest Broadband
3320 324 7062 272 Deutsche Telekom AG
8452 322 188 11 TEDATA
3215 316 2788 99 France Telecom Transpac
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7303 1754 244 73 Telecom Argentina Stet-France
8151 1398 2832 220 UniNet S.A. de C.V.
11830 671 299 9 Instituto Costarricense de El
10620 568 128 51 TVCABLE BOGOTA
22047 533 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 425 88 50 ENTEL CHILE S.A.
11172 402 118 72 Servicios Alestra S.A de C.V
16735 380 92 9 Companhia de Telecomunicacoes
7738 373 730 27 Telecomunicacoes da Bahia S.A
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 562 71 46 LINKdotNET AS number
3741 270 857 227 The Internet Solution
20858 261 34 3 EgyNet
2018 239 215 139 Tertiary Education Network
29571 147 13 8 Ci Telecom Autonomous system
6713 144 135 11 Itissalat Al-MAGHRIB
33783 141 10 15 EEPAD TISP TELECOM & INTERNET
5713 121 555 70 Telkom SA Ltd
5536 120 8 17 Internet Egypt Network
33776 116 6 3 Starcomms Nigeria Limited
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4366 3431 338 bellsouth.net, inc.
4538 3357 3245 44 China Education and Research
6298 2156 333 634 Cox Communicatons
20115 1841 1461 735 Charter Communications
7303 1754 244 73 Telecom Argentina Stet-France
1785 1704 717 155 AppliedTheory Corporation
6478 1677 369 200 AT&T Worldnet Services
2386 1590 676 908 AT&T Data Communications Serv
4323 1587 1068 376 Time Warner Telecom
17488 1425 100 114 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3357 3313 China Education and Research
7303 1754 1681 Telecom Argentina Stet-France
1785 1704 1549 AppliedTheory Corporation
6298 2156 1522 Cox Communicatons
6478 1677 1477 AT&T Worldnet Services
17488 1425 1311 Hathway IP Over Cable Interne
4323 1587 1211 Time Warner Telecom
11492 1217 1205 Cable One
8151 1398 1178 UniNet S.A. de C.V.
20115 1841 1106 Charter Communications
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 3549 Global Crossing
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.246.47/32 286 KPNQwest Backbone AS
10.29.246.48/32 286 KPNQwest Backbone AS
10.29.248.65/32 286 KPNQwest Backbone AS
10.29.248.71/32 286 KPNQwest Backbone AS
192.168.192.0/21 7497 Computer Network Information
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
24.75.116.0/22 10796 ServiceCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.142.40.0/21 7018 AT&T WorldNet Services
24.142.160.0/19 7018 AT&T WorldNet Services
24.246.0.0/17 7018 AT&T WorldNet Services
24.246.128.0/18 7018 AT&T WorldNet Services
41.187.0.0/16 20928 Noor Advanced Technologies AS
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
62.212.32.0/19 34797 Egrisi JSC.
Complete listing at http://thyme.apnic.net/rviews/data-add-IANA
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 /10:19 /11:55 /12:161
/13:315 /14:554 /15:1089 /16:10254 /17:4513 /18:7731
/19:16559 /20:19828 /21:19327 /22:25119 /23:25536 /24:146360
/25:649 /26:725 /27:381 /28:804 /29:401 /30:139
/31:0 /32:250
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2857 4366 bellsouth.net, inc.
6298 2130 2156 Cox Communicatons
4538 1800 3357 China Education and Research
1803 1320 1342 SPRINT
7303 1286 1754 Telecom Argentina Stet-France
2386 1272 1590 AT&T Data Communications Serv
17488 1215 1425 Hathway IP Over Cable Interne
11492 1192 1217 Cable One
1785 1163 1704 AppliedTheory Corporation
6478 1106 1677 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:12 8:162 12:2196 13:2 15:21
16:3 17:5 20:36 24:1139 30:1 32:139
38:519 40:93 41:804 43:1 44:2 47:12
52:3 55:3 56:3 57:48 58:541 59:626
60:454 61:1069 62:1197 63:1939 64:3304 65:2422
66:3573 67:1334 68:850 69:2369 70:897 71:172
72:2107 73:7 74:1306 75:170 76:290 77:892
78:518 79:291 80:940 81:865 82:609 83:410
84:590 85:1055 86:507 87:671 88:351 89:1365
90:29 91:1687 92:307 93:1000 94:684 95:28
96:90 97:137 98:394 99:15 100:1 113:39
114:134 115:155 116:1084 117:412 118:307 119:552
120:107 121:673 122:823 123:465 124:840 125:1234
128:359 129:219 130:135 131:407 132:72 133:9
134:188 135:31 136:223 137:118 138:144 139:92
140:431 141:111 142:393 143:313 144:301 145:53
146:373 147:144 148:607 149:290 150:142 151:210
152:140 153:138 154:10 155:277 156:175 157:302
158:168 159:297 160:273 161:132 162:250 163:136
164:516 165:512 166:362 167:339 168:645 169:155
170:483 171:40 172:10 173:140 174:5 187:18
188:1 189:371 190:2668 192:5832 193:4237 194:3394
195:2702 196:1025 198:3717 199:3286 200:5872 201:1616
202:8125 203:8069 204:3922 205:2172 206:2305 207:2728
208:3747 209:3401 210:3039 211:1322 212:1561 213:1687
214:69 215:25 216:4380 217:1243 218:416 219:499
220:1080 221:436 222:432
End of report