Routing Table Report 00:00 GMT Tue 25 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: 280655
Prefixes after maximum aggregation: 133274
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 132793
Total ASes present in the Internet Routing Table: 29940
Prefixes per ASN: 9.37
Origin-only ASes present in the Internet Routing Table: 26033
Origin ASes announcing only one prefix: 12690
Transit ASes present in the Internet Routing Table: 3907
Transit-only ASes present in the Internet Routing Table: 90
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 25
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 536
Unregistered ASNs in the Routing Table: 198
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: 194
Number of addresses announced to Internet: 1961566876
Equivalent to 116 /8s, 235 /16s and 34 /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: 139394
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 66219
Total APNIC prefixes after maximum aggregation: 23310
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 63171
Unique aggregates announced from the APNIC address blocks: 26604
APNIC Region origin ASes present in the Internet Routing Table: 3476
APNIC Prefixes per ASN: 18.17
APNIC Region origin ASes announcing only one prefix: 945
APNIC Region transit ASes present in the Internet Routing Table: 539
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 386411040
Equivalent to 23 /8s, 8 /16s and 42 /24s
Percentage of available APNIC address space announced: 76.8
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: 124582
Total ARIN prefixes after maximum aggregation: 66341
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 93001
Unique aggregates announced from the ARIN address blocks: 34776
ARIN Region origin ASes present in the Internet Routing Table: 12644
ARIN Prefixes per ASN: 7.36
ARIN Region origin ASes announcing only one prefix: 4880
ARIN Region transit ASes present in the Internet Routing Table: 1240
Average ARIN Region AS path length visible: 3.2
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 401377793
Equivalent to 23 /8s, 236 /16s and 138 /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: 61100
Total RIPE prefixes after maximum aggregation: 36312
RIPE Deaggregation factor: 1.68
Prefixes being announced from the RIPE address blocks: 57101
Unique aggregates announced from the RIPE address blocks: 37384
RIPE Region origin ASes present in the Internet Routing Table: 12239
RIPE Prefixes per ASN: 4.67
RIPE Region origin ASes announcing only one prefix: 6447
RIPE Region transit ASes present in the Internet Routing Table: 1850
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 379459047
Equivalent to 22 /8s, 158 /16s and 21 /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: 24147
Total LACNIC prefixes after maximum aggregation: 5543
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 22180
Unique aggregates announced from the LACNIC address blocks: 11400
LACNIC Region origin ASes present in the Internet Routing Table: 1037
LACNIC Prefixes per ASN: 21.39
LACNIC Region origin ASes announcing only one prefix: 332
LACNIC Region transit ASes present in the Internet Routing Table: 170
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 58385166
Equivalent to 3 /8s, 122 /16s and 227 /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: 4079
Total AfriNIC prefixes after maximum aggregation: 1339
AfriNIC Deaggregation factor: 3.05
Prefixes being announced from the AfriNIC address blocks: 4363
Unique aggregates announced from the AfriNIC address blocks: 2153
AfriNIC Region origin ASes present in the Internet Routing Table: 270
AfriNIC Prefixes per ASN: 16.16
AfriNIC Region origin ASes announcing only one prefix: 86
AfriNIC Region transit ASes present in the Internet Routing Table: 53
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC addresses announced to Internet: 12994432
Equivalent to 0 /8s, 198 /16s and 71 /24s
Percentage of available AfriNIC address space announced: 25.8
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 1433 100 115 Hathway IP Over Cable Interne
4755 1177 563 100 Videsh Sanchar Nigam Ltd. Aut
9583 1152 87 479 Sify Limited
4766 1052 6409 366 Korea Telecom (KIX)
4134 911 15024 371 CHINANET-BACKBONE
18101 786 168 32 Reliance Infocom Ltd Internet
23577 770 33 690 Korea Telecom (ATM-MPLS)
4780 732 357 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 1842 1461 736 Charter Communications
1785 1701 717 154 AppliedTheory Corporation
6478 1674 368 204 AT&T Worldnet Services
2386 1592 686 909 AT&T Data Communications Serv
4323 1591 1068 378 Time Warner Telecom
7018 1412 9943 972 AT&T WorldNet Services
1803 1328 7 1064 SPRINT
11492 1218 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 439 1766 383 TDC Tele Danmark
12479 370 578 6 Uni2 Autonomous System
30890 366 80 196 SC Kappa Invexim SRL
3301 338 1429 307 TeliaNet Sweden
8866 336 111 23 Bulgarian Telecommunication C
29049 333 26 3 AzerSat LLC.
5462 324 794 27 Telewest Broadband
3320 322 7062 270 Deutsche Telekom AG
3215 316 2788 99 France Telecom Transpac
8452 311 188 11 TEDATA
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 1747 244 71 Telecom Argentina Stet-France
8151 1391 2800 219 UniNet S.A. de C.V.
11830 664 299 9 Instituto Costarricense de El
22047 533 270 14 VTR PUNTO NET S.A.
10620 531 121 42 TVCABLE BOGOTA
16814 426 27 10 NSS, S.A.
6471 425 88 50 ENTEL CHILE S.A.
11172 401 102 71 Servicios Alestra S.A de C.V
16735 381 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 461 67 34 LINKdotNET AS number
3741 269 857 226 The Internet Solution
20858 261 34 3 EgyNet
2018 238 215 140 Tertiary Education Network
29571 148 13 8 Ci Telecom Autonomous system
33783 142 10 17 EEPAD TISP TELECOM & INTERNET
6713 137 135 11 Itissalat Al-MAGHRIB
5536 124 8 7 Internet Egypt Network
5713 121 555 70 Telkom SA Ltd
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 1842 1461 736 Charter Communications
7303 1747 244 71 Telecom Argentina Stet-France
1785 1701 717 154 AppliedTheory Corporation
6478 1674 368 204 AT&T Worldnet Services
2386 1592 686 909 AT&T Data Communications Serv
4323 1591 1068 378 Time Warner Telecom
17488 1433 100 115 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 1747 1676 Telecom Argentina Stet-France
1785 1701 1547 AppliedTheory Corporation
6298 2156 1522 Cox Communicatons
6478 1674 1470 AT&T Worldnet Services
17488 1433 1318 Hathway IP Over Cable Interne
4323 1591 1213 Time Warner Telecom
11492 1218 1206 Cable One
8151 1391 1172 UniNet S.A. de C.V.
20115 1842 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
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.251.0/24 22555 Universal Talkware Corporatio
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 /12:162
/13:315 /14:554 /15:1087 /16:10257 /17:4514 /18:7731
/19:16524 /20:19785 /21:19277 /22:25041 /23:25536 /24:146371
/25:653 /26:742 /27:384 /28:810 /29:402 /30:157
/31:0 /32:251
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2858 4366 bellsouth.net, inc.
6298 2130 2156 Cox Communicatons
4538 1799 3357 China Education and Research
1803 1307 1328 SPRINT
7303 1279 1747 Telecom Argentina Stet-France
2386 1272 1592 AT&T Data Communications Serv
17488 1223 1433 Hathway IP Over Cable Interne
11492 1193 1218 Cable One
1785 1161 1701 AppliedTheory Corporation
6478 1106 1674 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 8:160 12:2196 13:2 15:21
16:3 17:5 20:36 24:1142 30:1 32:139
38:518 40:93 41:748 43:1 44:2 47:12
52:3 55:3 56:3 57:47 58:540 59:629
60:456 61:1070 62:1181 63:1937 64:3306 65:2419
66:3562 67:1345 68:850 69:2366 70:897 71:172
72:2099 73:7 74:1308 75:170 76:290 77:892
78:519 79:288 80:938 81:860 82:581 83:411
84:586 85:1052 86:507 87:666 88:355 89:1354
90:29 91:1702 92:310 93:1001 94:688 95:29
96:90 97:138 98:398 99:9 100:1 113:41
114:139 115:161 116:1093 117:412 118:306 119:546
120:106 121:675 122:884 123:465 124:849 125:1285
128:357 129:219 130:135 131:409 132:72 133:9
134:188 135:31 136:223 137:117 138:144 139:92
140:430 141:111 142:393 143:308 144:302 145:52
146:373 147:143 148:606 149:291 150:143 151:210
152:139 153:138 154:10 155:276 156:175 157:302
158:168 159:298 160:273 161:132 162:250 163:133
164:517 165:515 166:363 167:340 168:647 169:155
170:484 171:40 172:10 173:140 174:5 187:18
188:1 189:350 190:2665 192:5865 193:4232 194:3399
195:2691 196:1002 198:3717 199:3304 200:5864 201:1608
202:8140 203:8070 204:3922 205:2190 206:2305 207:2731
208:3748 209:3398 210:3034 211:1325 212:1557 213:1677
214:69 215:25 216:4375 217:1230 218:416 219:500
220:1086 221:439 222:432
End of report