Routing Table Report 00:00 GMT Sun 07 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: 280526
Prefixes after maximum aggregation: 133279
Deaggregation factor: 2.10
Unique aggregates announced to Internet: 133595
Total ASes present in the Internet Routing Table: 30071
Prefixes per ASN: 9.33
Origin-only ASes present in the Internet Routing Table: 26057
Origin ASes announcing only one prefix: 12716
Transit ASes present in the Internet Routing Table: 4014
Transit-only ASes present in the Internet Routing Table: 98
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: 544
Unregistered ASNs in the Routing Table: 203
Number of 32-bit ASNs allocated by the RIRs: 68
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 5
Prefixes being announced from unallocated address space: 196
Number of addresses announced to Internet: 1966968986
Equivalent to 117 /8s, 61 /16s and 144 /24s
Percentage of available address space announced: 53.1
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: 74.6
Total number of prefixes smaller than registry allocations: 138721
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 66762
Total APNIC prefixes after maximum aggregation: 23420
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 63871
Unique aggregates announced from the APNIC address blocks: 26941
APNIC Region origin ASes present in the Internet Routing Table: 3472
APNIC Prefixes per ASN: 18.40
APNIC Region origin ASes announcing only one prefix: 933
APNIC Region transit ASes present in the Internet Routing Table: 543
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 389359648
Equivalent to 23 /8s, 53 /16s and 40 /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: 122847
Total ARIN prefixes after maximum aggregation: 66019
ARIN Deaggregation factor: 1.86
Prefixes being announced from the ARIN address blocks: 91158
Unique aggregates announced from the ARIN address blocks: 34848
ARIN Region origin ASes present in the Internet Routing Table: 12674
ARIN Prefixes per ASN: 7.19
ARIN Region origin ASes announcing only one prefix: 4889
ARIN Region transit ASes present in the Internet Routing Table: 1252
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 402523905
Equivalent to 23 /8s, 254 /16s and 7 /24s
Percentage of available ARIN address space announced: 82.7
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: 61824
Total RIPE prefixes after maximum aggregation: 36539
RIPE Deaggregation factor: 1.69
Prefixes being announced from the RIPE address blocks: 57813
Unique aggregates announced from the RIPE address blocks: 37648
RIPE Region origin ASes present in the Internet Routing Table: 12329
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 6479
RIPE Region transit ASes present in the Internet Routing Table: 1915
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 31
Number of RIPE addresses announced to Internet: 381035239
Equivalent to 22 /8s, 182 /16s and 34 /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: 24426
Total LACNIC prefixes after maximum aggregation: 5565
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 22497
Unique aggregates announced from the LACNIC address blocks: 11532
LACNIC Region origin ASes present in the Internet Routing Table: 1044
LACNIC Prefixes per ASN: 21.55
LACNIC Region origin ASes announcing only one prefix: 334
LACNIC Region transit ASes present in the Internet Routing Table: 172
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 58573068
Equivalent to 3 /8s, 125 /16s and 193 /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: 4147
Total AfriNIC prefixes after maximum aggregation: 1314
AfriNIC Deaggregation factor: 3.16
Prefixes being announced from the AfriNIC address blocks: 4506
Unique aggregates announced from the AfriNIC address blocks: 2152
AfriNIC Region origin ASes present in the Internet Routing Table: 272
AfriNIC Prefixes per ASN: 16.57
AfriNIC Region origin ASes announcing only one prefix: 81
AfriNIC Region transit ASes present in the Internet Routing Table: 60
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 13017728
Equivalent to 0 /8s, 198 /16s and 162 /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 3401 3245 44 China Education and Research
17488 1443 101 105 Hathway IP Over Cable Interne
4766 1217 6409 366 Korea Telecom (KIX)
4755 1164 563 99 Videsh Sanchar Nigam Ltd. Aut
9583 1139 88 488 Sify Limited
4134 913 15509 355 CHINANET-BACKBONE
18101 784 168 32 Reliance Infocom Ltd Internet
23577 761 33 681 Korea Telecom (ATM-MPLS)
4780 731 357 63 Digital United Inc.
9498 697 295 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 4369 3432 340 bellsouth.net, inc.
20115 1848 1466 745 Charter Communications
1785 1705 717 155 AppliedTheory Corporation
6478 1601 367 285 AT&T Worldnet Services
4323 1598 1066 382 Time Warner Telecom
2386 1594 694 909 AT&T Data Communications Serv
7018 1438 9944 992 AT&T WorldNet Services
1803 1333 8 1068 SPRINT
11492 1222 192 12 Cable One
3356 1099 10990 422 Level 3 Communications, LLC
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 440 1765 383 TDC Tele Danmark
35228 406 144 5 Avatar Broadband Limited
30890 377 79 194 SC Kappa Invexim SRL
12479 373 578 6 Uni2 Autonomous System
3301 335 1413 304 TeliaNet Sweden
8866 331 109 22 Bulgarian Telecommunication C
29049 330 26 3 AzerSat LLC.
3320 329 7064 277 Deutsche Telekom AG
8452 323 188 11 TEDATA
3215 314 2776 97 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 1776 248 76 Telecom Argentina Stet-France
8151 1391 2832 215 UniNet S.A. de C.V.
11830 667 299 9 Instituto Costarricense de El
10620 604 132 44 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 399 102 71 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 575 73 43 LINKdotNET AS number
3741 269 857 227 The Internet Solution
20858 264 34 3 EgyNet
6713 144 135 11 Itissalat Al-MAGHRIB
33783 142 10 17 EEPAD TISP TELECOM & INTERNET
2018 131 115 88 Tertiary Education Network
29571 121 15 8 Ci Telecom Autonomous system
5536 120 8 17 Internet Egypt Network
5713 119 555 68 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 4369 3432 340 bellsouth.net, inc.
4538 3401 3245 44 China Education and Research
20115 1848 1466 745 Charter Communications
7303 1776 248 76 Telecom Argentina Stet-France
1785 1705 717 155 AppliedTheory Corporation
6478 1601 367 285 AT&T Worldnet Services
4323 1598 1066 382 Time Warner Telecom
2386 1594 694 909 AT&T Data Communications Serv
17488 1443 101 105 Hathway IP Over Cable Interne
7018 1438 9944 992 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3401 3357 China Education and Research
7303 1776 1700 Telecom Argentina Stet-France
1785 1705 1550 AppliedTheory Corporation
17488 1443 1338 Hathway IP Over Cable Interne
6478 1601 1316 AT&T Worldnet Services
4323 1598 1216 Time Warner Telecom
11492 1222 1210 Cable One
8151 1391 1176 UniNet S.A. de C.V.
20115 1848 1103 Charter Communications
4755 1164 1065 Videsh Sanchar Nigam Ltd. Aut
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 /12:161
/13:315 /14:559 /15:1087 /16:10258 /17:4517 /18:7774
/19:16576 /20:19885 /21:19124 /22:24953 /23:25243 /24:146572
/25:652 /26:725 /27:384 /28:804 /29:411 /30:177
/31:0 /32:246
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2856 4369 bellsouth.net, inc.
4538 1812 3401 China Education and Research
1803 1311 1333 SPRINT
7303 1308 1776 Telecom Argentina Stet-France
2386 1271 1594 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 1601 AT&T Worldnet Services
18566 1040 1059 Covad Communications
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:164 12:2235 13:2 15:21 16:3
17:5 20:36 24:1121 32:139 38:522 40:92
41:807 43:1 44:2 47:13 52:3 55:3
56:3 57:47 58:547 59:650 60:456 61:1083
62:1185 63:1939 64:3319 65:2431 66:3570 67:1417
68:657 69:2368 70:525 71:172 72:1618 73:7
74:1321 75:183 76:299 77:904 78:517 79:296
80:940 81:869 82:603 83:403 84:590 85:1056
86:505 87:666 88:358 89:1414 90:43 91:1759
92:325 93:1095 94:786 95:50 96:92 97:141
98:166 99:10 100:1 110:1 111:1 113:41
114:149 115:168 116:1105 117:422 118:273 119:554
120:106 121:731 122:897 123:465 124:864 125:1320
128:359 129:219 130:136 131:410 132:72 133:9
134:191 135:31 136:225 137:123 138:144 139:93
140:412 141:112 142:375 143:351 144:315 145:53
146:372 147:139 148:599 149:291 150:144 151:210
152:139 153:138 154:10 155:244 156:165 157:305
158:166 159:298 160:264 161:131 162:252 163:132
164:513 165:505 166:362 167:350 168:644 169:158
170:485 171:40 172:10 173:123 174:10 187:15
188:1 189:385 190:2756 192:5831 193:4254 194:3394
195:2717 196:1014 198:3720 199:3323 200:5872 201:1638
202:8355 203:8026 204:3930 205:2181 206:2309 207:2734
208:3778 209:3408 210:3109 211:1336 212:1565 213:1703
214:75 215:25 216:4379 217:1251 218:422 219:496
220:1190 221:472 222:414
End of report