Routing Table Report 00:00 GMT Mon 01 Dec, 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: 281903
Prefixes after maximum aggregation: 133478
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 133252
Total ASes present in the Internet Routing Table: 29994
Prefixes per ASN: 9.40
Origin-only ASes present in the Internet Routing Table: 26006
Origin ASes announcing only one prefix: 12694
Transit ASes present in the Internet Routing Table: 3988
Transit-only ASes present in the Internet Routing Table: 96
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 24
Max AS path prepend of ASN (17565) 18
Prefixes from unregistered ASNs in the Routing Table: 540
Unregistered ASNs in the Routing Table: 203
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: 1966070172
Equivalent to 117 /8s, 47 /16s and 217 /24s
Percentage of available address space announced: 53.0
Percentage of allocated address space announced: 63.4
Percentage of available address space allocated: 83.7
Percentage of address space in use by end-sites: 74.5
Total number of prefixes smaller than registry allocations: 140427
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 66398
Total APNIC prefixes after maximum aggregation: 23351
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 63341
Unique aggregates announced from the APNIC address blocks: 26709
APNIC Region origin ASes present in the Internet Routing Table: 3475
APNIC Prefixes per ASN: 18.23
APNIC Region origin ASes announcing only one prefix: 939
APNIC Region transit ASes present in the Internet Routing Table: 538
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 388860704
Equivalent to 23 /8s, 45 /16s and 139 /24s
Percentage of available APNIC address space announced: 77.3
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: 124952
Total ARIN prefixes after maximum aggregation: 66396
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 93350
Unique aggregates announced from the ARIN address blocks: 34780
ARIN Region origin ASes present in the Internet Routing Table: 12653
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4881
ARIN Region transit ASes present in the Internet Routing Table: 1248
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 402048769
Equivalent to 23 /8s, 246 /16s and 199 /24s
Percentage of available ARIN address space announced: 82.6
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: 61598
Total RIPE prefixes after maximum aggregation: 36425
RIPE Deaggregation factor: 1.69
Prefixes being announced from the RIPE address blocks: 57585
Unique aggregates announced from the RIPE address blocks: 37610
RIPE Region origin ASes present in the Internet Routing Table: 12278
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 6458
RIPE Region transit ASes present in the Internet Routing Table: 1906
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 380692711
Equivalent to 22 /8s, 176 /16s and 232 /24s
Percentage of available RIPE address space announced: 87.3
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: 24287
Total LACNIC prefixes after maximum aggregation: 5531
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 22332
Unique aggregates announced from the LACNIC address blocks: 11475
LACNIC Region origin ASes present in the Internet Routing Table: 1039
LACNIC Prefixes per ASN: 21.49
LACNIC Region origin ASes announcing only one prefix: 333
LACNIC Region transit ASes present in the Internet Routing Table: 173
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 58510094
Equivalent to 3 /8s, 124 /16s and 203 /24s
Percentage of available LACNIC address space announced: 58.1
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: 4137
Total AfriNIC prefixes after maximum aggregation: 1343
AfriNIC Deaggregation factor: 3.08
Prefixes being announced from the AfriNIC address blocks: 4424
Unique aggregates announced from the AfriNIC address blocks: 2208
AfriNIC Region origin ASes present in the Internet Routing Table: 267
AfriNIC Prefixes per ASN: 16.57
AfriNIC Region origin ASes announcing only one prefix: 83
AfriNIC Region transit ASes present in the Internet Routing Table: 57
Average AfriNIC Region AS path length visible: 5.1
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 13015680
Equivalent to 0 /8s, 198 /16s and 154 /24s
Percentage of available AfriNIC address space announced: 25.9
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 3361 3245 44 China Education and Research
17488 1442 101 104 Hathway IP Over Cable Interne
4766 1164 6409 366 Korea Telecom (KIX)
4755 1160 563 101 Videsh Sanchar Nigam Ltd. Aut
9583 1134 88 485 Sify Limited
4134 911 15536 371 CHINANET-BACKBONE
18101 787 168 32 Reliance Infocom Ltd Internet
23577 769 33 687 Korea Telecom (ATM-MPLS)
4780 731 357 63 Digital United Inc.
9498 689 295 51 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 4372 3432 342 bellsouth.net, inc.
6298 2173 335 633 Cox Communicatons
20115 1841 1460 737 Charter Communications
1785 1704 717 155 AppliedTheory Corporation
6478 1609 369 198 AT&T Worldnet Services
2386 1595 686 910 AT&T Data Communications Serv
4323 1591 1066 377 Time Warner Telecom
7018 1430 9944 985 AT&T WorldNet Services
1803 1328 7 1063 SPRINT
11492 1219 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 438 1765 382 TDC Tele Danmark
12479 370 578 6 Uni2 Autonomous System
30890 369 80 196 SC Kappa Invexim SRL
3301 336 1413 305 TeliaNet Sweden
29049 331 26 3 AzerSat LLC.
8866 330 109 22 Bulgarian Telecommunication C
3320 327 7063 275 Deutsche Telekom AG
3215 314 2776 97 France Telecom Transpac
8452 311 188 11 TEDATA
8551 302 286 36 Bezeq International
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 1749 244 73 Telecom Argentina Stet-France
8151 1394 2832 216 UniNet S.A. de C.V.
11830 664 299 9 Instituto Costarricense de El
22047 552 270 14 VTR PUNTO NET S.A.
10620 546 122 40 TVCABLE BOGOTA
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 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 516 72 47 LINKdotNET AS number
3741 269 857 226 The Internet Solution
20858 265 34 3 EgyNet
2018 239 215 140 Tertiary Education Network
33783 143 10 17 EEPAD TISP TELECOM & INTERNET
6713 137 135 11 Itissalat Al-MAGHRIB
5536 120 8 17 Internet Egypt Network
5713 119 555 68 Telkom SA Ltd
33776 116 6 3 Starcomms Nigeria Limited
29571 113 15 8 Ci Telecom Autonomous system
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 4372 3432 342 bellsouth.net, inc.
4538 3361 3245 44 China Education and Research
6298 2173 335 633 Cox Communicatons
20115 1841 1460 737 Charter Communications
7303 1749 244 73 Telecom Argentina Stet-France
1785 1704 717 155 AppliedTheory Corporation
6478 1609 369 198 AT&T Worldnet Services
2386 1595 686 910 AT&T Data Communications Serv
4323 1591 1066 377 Time Warner Telecom
17488 1442 101 104 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 3361 3317 China Education and Research
7303 1749 1676 Telecom Argentina Stet-France
1785 1704 1549 AppliedTheory Corporation
6298 2173 1540 Cox Communicatons
6478 1609 1411 AT&T Worldnet Services
17488 1442 1338 Hathway IP Over Cable Interne
4323 1591 1214 Time Warner Telecom
11492 1219 1207 Cable One
8151 1394 1178 UniNet S.A. de C.V.
20115 1841 1104 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 /11:56 /12:162
/13:316 /14:556 /15:1090 /16:10265 /17:4525 /18:7748
/19:16573 /20:19857 /21:19303 /22:25174 /23:25615 /24:147223
/25:653 /26:730 /27:377 /28:805 /29:405 /30:175
/31:0 /32:248
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2858 4372 bellsouth.net, inc.
6298 2147 2173 Cox Communicatons
4538 1801 3361 China Education and Research
1803 1307 1328 SPRINT
7303 1282 1749 Telecom Argentina Stet-France
2386 1274 1595 AT&T Data Communications Serv
17488 1232 1442 Hathway IP Over Cable Interne
11492 1194 1219 Cable One
1785 1164 1704 AppliedTheory Corporation
6478 1106 1609 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:12 8:163 12:2199 13:2 15:21 16:3
17:5 20:36 24:1140 32:139 38:523 40:93
41:795 43:1 44:2 47:12 52:3 55:3
56:3 57:47 58:541 59:633 60:457 61:1063
62:1193 63:1939 64:3368 65:2432 66:3589 67:1369
68:852 69:2370 70:899 71:172 72:2107 73:7
74:1314 75:172 76:290 77:900 78:517 79:293
80:940 81:858 82:599 83:412 84:592 85:1056
86:507 87:670 88:353 89:1401 90:29 91:1723
92:325 93:1052 94:763 95:50 96:92 97:138
98:403 99:9 100:1 110:1 111:1 113:41
114:138 115:165 116:1083 117:414 118:270 119:558
120:108 121:704 122:898 123:458 124:853 125:1293
128:358 129:219 130:136 131:411 132:72 133:9
134:188 135:31 136:223 137:117 138:144 139:93
140:427 141:111 142:372 143:303 144:309 145:52
146:370 147:143 148:603 149:291 150:143 151:210
152:143 153:138 154:10 155:276 156:165 157:303
158:164 159:298 160:274 161:132 162:252 163:133
164:517 165:524 166:363 167:341 168:651 169:154
170:487 171:40 172:10 173:126 174:7 187:18
188:1 189:371 190:2707 192:5863 193:4260 194:3394
195:2689 196:1007 198:3718 199:3319 200:5876 201:1620
202:8142 203:8063 204:3917 205:2177 206:2309 207:2736
208:3784 209:3478 210:3050 211:1334 212:1558 213:1668
214:71 215:25 216:4439 217:1247 218:422 219:500
220:1105 221:465 222:410
End of report