Routing Table Report 00:00 GMT Fri 05 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: 282606
Prefixes after maximum aggregation: 133803
Deaggregation factor: 2.11
Unique aggregates announced to Internet: 133452
Total ASes present in the Internet Routing Table: 30054
Prefixes per ASN: 9.40
Origin-only ASes present in the Internet Routing Table: 26061
Origin ASes announcing only one prefix: 12724
Transit ASes present in the Internet Routing Table: 3993
Transit-only ASes present in the Internet Routing Table: 96
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 31
Max AS path prepend of ASN (16327) 25
Prefixes from unregistered ASNs in the Routing Table: 554
Unregistered ASNs in the Routing Table: 203
Number of 32-bit ASNs allocated by the RIRs: 66
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: 200
Number of addresses announced to Internet: 1950975900
Equivalent to 116 /8s, 73 /16s and 135 /24s
Percentage of available address space announced: 52.6
Percentage of allocated address space announced: 62.9
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: 140826
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 66991
Total APNIC prefixes after maximum aggregation: 23420
APNIC Deaggregation factor: 2.86
Prefixes being announced from the APNIC address blocks: 63944
Unique aggregates announced from the APNIC address blocks: 26880
APNIC Region origin ASes present in the Internet Routing Table: 3478
APNIC Prefixes per ASN: 18.39
APNIC Region origin ASes announcing only one prefix: 937
APNIC Region transit ASes present in the Internet Routing Table: 541
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 389334048
Equivalent to 23 /8s, 52 /16s and 196 /24s
Percentage of available APNIC address space announced: 77.4
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: 124779
Total ARIN prefixes after maximum aggregation: 66496
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 93199
Unique aggregates announced from the ARIN address blocks: 34813
ARIN Region origin ASes present in the Internet Routing Table: 12664
ARIN Prefixes per ASN: 7.36
ARIN Region origin ASes announcing only one prefix: 4891
ARIN Region transit ASes present in the Internet Routing Table: 1245
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 402740481
Equivalent to 24 /8s, 1 /16s and 85 /24s
Percentage of available ARIN address space announced: 82.8
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: 61737
Total RIPE prefixes after maximum aggregation: 36543
RIPE Deaggregation factor: 1.69
Prefixes being announced from the RIPE address blocks: 57750
Unique aggregates announced from the RIPE address blocks: 37601
RIPE Region origin ASes present in the Internet Routing Table: 12317
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 6481
RIPE Region transit ASes present in the Internet Routing Table: 1907
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 381077479
Equivalent to 22 /8s, 182 /16s and 199 /24s
Percentage of available RIPE address space announced: 87.4
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: 24402
Total LACNIC prefixes after maximum aggregation: 5551
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 22440
Unique aggregates announced from the LACNIC address blocks: 11528
LACNIC Region origin ASes present in the Internet Routing Table: 1041
LACNIC Prefixes per ASN: 21.56
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: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 58565134
Equivalent to 3 /8s, 125 /16s and 162 /24s
Percentage of available LACNIC address space announced: 58.2
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: 4152
Total AfriNIC prefixes after maximum aggregation: 1367
AfriNIC Deaggregation factor: 3.04
Prefixes being announced from the AfriNIC address blocks: 4435
Unique aggregates announced from the AfriNIC address blocks: 2189
AfriNIC Region origin ASes present in the Internet Routing Table: 273
AfriNIC Prefixes per ASN: 16.25
AfriNIC Region origin ASes announcing only one prefix: 83
AfriNIC Region transit ASes present in the Internet Routing Table: 59
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 13021056
Equivalent to 0 /8s, 198 /16s and 175 /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 3402 3245 44 China Education and Research
17488 1443 101 105 Hathway IP Over Cable Interne
4766 1217 6409 366 Korea Telecom (KIX)
4755 1160 563 99 Videsh Sanchar Nigam Ltd. Aut
9583 1138 88 485 Sify Limited
4134 914 15509 355 CHINANET-BACKBONE
18101 785 168 33 Reliance Infocom Ltd Internet
23577 762 33 682 Korea Telecom (ATM-MPLS)
4780 730 357 63 Digital United Inc.
9498 695 295 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 4373 3433 341 bellsouth.net, inc.
6298 2177 335 632 Cox Communicatons
20115 1848 1466 745 Charter Communications
1785 1705 717 155 AppliedTheory Corporation
6478 1635 367 285 AT&T Worldnet Services
2386 1610 686 908 AT&T Data Communications Serv
4323 1601 1066 382 Time Warner Telecom
7018 1438 9944 996 AT&T WorldNet Services
1803 1332 8 1067 SPRINT
11492 1222 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 1765 383 TDC Tele Danmark
35228 404 144 5 Avatar Broadband Limited
30890 377 79 194 SC Kappa Invexim SRL
12479 372 578 6 Uni2 Autonomous System
3301 335 1413 304 TeliaNet Sweden
8866 331 109 22 Bulgarian Telecommunication C
29049 331 26 3 AzerSat LLC.
3320 329 7064 277 Deutsche Telekom AG
3215 314 2776 97 France Telecom Transpac
8452 312 188 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 1774 248 77 Telecom Argentina Stet-France
8151 1391 2832 215 UniNet S.A. de C.V.
11830 664 299 9 Instituto Costarricense de El
10620 602 132 43 TVCABLE BOGOTA
22047 553 270 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 507 70 53 LINKdotNET AS number
3741 269 857 227 The Internet Solution
20858 265 34 3 EgyNet
2018 239 215 140 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 143 10 17 EEPAD TISP TELECOM & INTERNET
5536 120 8 17 Internet Egypt Network
5713 119 555 68 Telkom SA Ltd
33776 116 6 3 Starcomms Nigeria Limited
29571 114 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 4373 3433 341 bellsouth.net, inc.
4538 3402 3245 44 China Education and Research
6298 2177 335 632 Cox Communicatons
20115 1848 1466 745 Charter Communications
7303 1774 248 77 Telecom Argentina Stet-France
1785 1705 717 155 AppliedTheory Corporation
6478 1635 367 285 AT&T Worldnet Services
2386 1610 686 908 AT&T Data Communications Serv
4323 1601 1066 382 Time Warner Telecom
17488 1443 101 105 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 3402 3358 China Education and Research
7303 1774 1697 Telecom Argentina Stet-France
1785 1705 1550 AppliedTheory Corporation
6298 2177 1545 Cox Communicatons
6478 1635 1350 AT&T Worldnet Services
17488 1443 1338 Hathway IP Over Cable Interne
4323 1601 1219 Time Warner Telecom
11492 1222 1210 Cable One
8151 1391 1176 UniNet S.A. de C.V.
20115 1848 1103 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 /8:18 /9:9 /10:19 /11:56 /12:161
/13:316 /14:559 /15:1087 /16:10278 /17:4521 /18:7771
/19:16565 /20:19878 /21:19305 /22:25273 /23:25577 /24:147786
/25:651 /26:732 /27:381 /28:806 /29:411 /30:197
/31:0 /32:249
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2860 4373 bellsouth.net, inc.
6298 2151 2177 Cox Communicatons
4538 1813 3402 China Education and Research
1803 1310 1332 SPRINT
7303 1305 1774 Telecom Argentina Stet-France
2386 1289 1610 AT&T Data Communications Serv
17488 1232 1443 Hathway IP Over Cable Interne
11492 1197 1222 Cable One
1785 1164 1705 AppliedTheory Corporation
6478 1126 1635 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 8:164 12:2228 13:2 15:21 16:3
17:5 20:36 24:1166 32:139 38:523 40:92
41:793 43:1 44:2 47:7 52:3 55:3
56:3 57:47 58:547 59:648 60:456 61:1079
62:1183 63:1937 64:3319 65:2431 66:3574 67:1413
68:855 69:2368 70:902 71:172 72:2109 73:7
74:1320 75:172 76:298 77:902 78:517 79:295
80:938 81:859 82:594 83:411 84:603 85:1053
86:505 87:671 88:355 89:1415 90:43 91:1751
92:325 93:1095 94:782 95:50 96:91 97:140
98:405 99:10 100:1 110:1 111:1 113:41
114:144 115:169 116:1084 117:421 118:273 119:556
120:105 121:721 122:897 123:465 124:864 125:1319
128:359 129:219 130:131 131:411 132:72 133:9
134:188 135:31 136:225 137:123 138:144 139:93
140:428 141:108 142:374 143:335 144:316 145:52
146:372 147:142 148:604 149:291 150:143 151:210
152:145 153:138 154:10 155:251 156:165 157:305
158:166 159:321 160:273 161:131 162:253 163:134
164:513 165:505 166:363 167:350 168:656 169:159
170:487 171:40 172:10 173:135 174:10 187:15
188:1 189:378 190:2741 192:5794 193:4248 194:3392
195:2708 196:1016 198:3717 199:3312 200:5856 201:1634
202:8346 203:8059 204:3928 205:2164 206:2308 207:2734
208:3772 209:3388 210:3143 211:1341 212:1548 213:1697
214:75 215:25 216:4383 217:1250 218:422 219:496
220:1198 221:472 222:413
End of report