Routing Table Report 00:00 GMT Fri 29 Aug, 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: 274555
Prefixes after maximum aggregation: 131136
Deaggregation factor: 2.09
Unique aggregates announced to Internet: 129876
Total ASes present in the Internet Routing Table: 29156
Prefixes per ASN: 9.42
Origin-only ASes present in the Internet Routing Table: 25263
Origin ASes announcing only one prefix: 12265
Transit ASes present in the Internet Routing Table: 3893
Transit-only ASes present in the Internet Routing Table: 98
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 28
Max AS path prepend of ASN (17957) 20
Prefixes from unregistered ASNs in the Routing Table: 580
Unregistered ASNs in the Routing Table: 220
Number of 32-bit ASNs allocated by the RIRs: 59
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 779
Number of addresses announced to Internet: 1914323190
Equivalent to 114 /8s, 26 /16s and 64 /24s
Percentage of available address space announced: 51.6
Percentage of allocated address space announced: 62.7
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.3
Total number of prefixes smaller than registry allocations: 135939
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64466
Total APNIC prefixes after maximum aggregation: 22700
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 61537
Unique aggregates announced from the APNIC address blocks: 25984
APNIC Region origin ASes present in the Internet Routing Table: 3361
APNIC Prefixes per ASN: 18.31
APNIC Region origin ASes announcing only one prefix: 897
APNIC Region transit ASes present in the Internet Routing Table: 537
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 375033504
Equivalent to 22 /8s, 90 /16s and 142 /24s
Percentage of available APNIC address space announced: 79.8
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, 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: 123884
Total ARIN prefixes after maximum aggregation: 66360
ARIN Deaggregation factor: 1.87
Prefixes being announced from the ARIN address blocks: 91819
Unique aggregates announced from the ARIN address blocks: 35121
ARIN Region origin ASes present in the Internet Routing Table: 12427
ARIN Prefixes per ASN: 7.39
ARIN Region origin ASes announcing only one prefix: 4774
ARIN Region transit ASes present in the Internet Routing Table: 1240
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 362648577
Equivalent to 21 /8s, 157 /16s and 148 /24s
Percentage of available ARIN address space announced: 74.5
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: 58512
Total RIPE prefixes after maximum aggregation: 35075
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 54085
Unique aggregates announced from the RIPE address blocks: 35432
RIPE Region origin ASes present in the Internet Routing Table: 11811
RIPE Prefixes per ASN: 4.58
RIPE Region origin ASes announcing only one prefix: 6191
RIPE Region transit ASes present in the Internet Routing Table: 1832
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 370014784
Equivalent to 22 /8s, 13 /16s and 250 /24s
Percentage of available RIPE address space announced: 84.8
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, 47104-48127
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: 23060
Total LACNIC prefixes after maximum aggregation: 5269
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 21308
Unique aggregates announced from the LACNIC address blocks: 10802
LACNIC Region origin ASes present in the Internet Routing Table: 992
LACNIC Prefixes per ASN: 21.48
LACNIC Region origin ASes announcing only one prefix: 317
LACNIC Region transit ASes present in the Internet Routing Table: 167
Average LACNIC Region AS path length visible: 5.6
Max LACNIC Region AS path length visible: 28
Number of LACNIC addresses announced to Internet: 54734862
Equivalent to 3 /8s, 67 /16s and 48 /24s
Percentage of available LACNIC address space announced: 54.4
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: 4054
Total AfriNIC prefixes after maximum aggregation: 1256
AfriNIC Deaggregation factor: 3.23
Prefixes being announced from the AfriNIC address blocks: 4400
Unique aggregates announced from the AfriNIC address blocks: 1886
AfriNIC Region origin ASes present in the Internet Routing Table: 256
AfriNIC Prefixes per ASN: 17.19
AfriNIC Region origin ASes announcing only one prefix: 86
AfriNIC Region transit ASes present in the Internet Routing Table: 52
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 12646912
Equivalent to 0 /8s, 192 /16s and 250 /24s
Percentage of available AfriNIC address space announced: 37.7
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4538 3301 3214 44 China Education and Research
4755 1716 578 91 Videsh Sanchar Nigam Ltd. Aut
17488 1379 89 104 Hathway IP Over Cable Interne
9583 1124 91 500 Sify Limited
4134 851 13619 341 CHINANET-BACKBONE
4766 841 6407 356 Korea Telecom (KIX)
23577 825 33 730 Korea Telecom (ATM-MPLS)
4780 717 353 61 Digital United Inc.
18101 695 167 33 Reliance Infocom Ltd Internet
9498 675 291 54 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 4068 3417 334 bellsouth.net, inc.
6298 2006 322 708 Cox Communicatons
1785 1650 710 156 AppliedTheory Corporation
2386 1561 692 900 AT&T Data Communications Serv
4323 1497 1073 374 Time Warner Telecom
20115 1455 1167 650 Charter Communications
3549 1452 539 213 Global Crossing
7018 1413 9873 977 AT&T WorldNet Services
1803 1275 8 1006 SPRINT
11492 1211 151 22 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 417 1776 372 TDC Tele Danmark
3215 396 2756 106 France Telecom Transpac
8452 358 188 11 TEDATA
3301 334 1444 305 TeliaNet Sweden
3320 322 7047 270 Deutsche Telekom AG
8866 316 77 21 Bulgarian Telecommunication C
5462 304 666 27 Telewest Broadband
8551 288 270 38 Bezeq International
1257 279 1131 204 SWIPnet Swedish IP Network
680 275 2047 265 DFN-IP service G-WiN
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 1691 235 68 Telecom Argentina Stet-France
8151 1578 2590 225 UniNet S.A. de C.V.
11830 664 299 9 Instituto Costarricense de El
22047 564 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 421 85 48 ENTEL CHILE S.A.
10620 417 102 66 TVCABLE BOGOTA
16735 415 92 12 Companhia de Telecomunicacoes
11172 408 118 72 Servicios Alestra S.A de C.V
14117 345 23 9 Telefonica del Sur 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 64 35 LINKdotNET AS number
20858 402 34 3 EgyNet
3741 265 855 223 The Internet Solution
2018 229 214 135 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 136 10 13 EEPAD TISP TELECOM & INTERNET
5536 120 8 17 Internet Egypt Network
33776 119 6 3 Starcomms Nigeria Limited
5713 118 539 70 Telkom SA Ltd
29571 107 13 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 4068 3417 334 bellsouth.net, inc.
4538 3301 3214 44 China Education and Research
6298 2006 322 708 Cox Communicatons
4755 1716 578 91 Videsh Sanchar Nigam Ltd. Aut
7303 1691 235 68 Telecom Argentina Stet-France
1785 1650 710 156 AppliedTheory Corporation
8151 1578 2590 225 UniNet S.A. de C.V.
2386 1561 692 900 AT&T Data Communications Serv
4323 1497 1073 374 Time Warner Telecom
20115 1455 1167 650 Charter Communications
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3301 3257 China Education and Research
4755 1716 1625 Videsh Sanchar Nigam Ltd. Aut
7303 1691 1623 Telecom Argentina Stet-France
1785 1650 1494 AppliedTheory Corporation
8151 1578 1353 UniNet S.A. de C.V.
6298 2006 1298 Cox Communicatons
17488 1379 1275 Hathway IP Over Cable Interne
3549 1452 1239 Global Crossing
11492 1211 1189 Cable One
4323 1497 1123 Time Warner Telecom
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
22492 UNALLOCATED 12.2.46.0/24 1239 Sprint
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.20.55.0/24 6517 Yipes Communications
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
13632 UNALLOCATED 12.31.25.0/24 6517 Yipes Communications
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 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
10.29.246.49/32 286 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
24.75.160.0/19 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
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.71.0/24 701 UUNET Technologies, Inc.
63.143.115.0/24 701 UUNET Technologies, Inc.
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 /8:20 /9:9 /10:17 /11:46 /12:147
/13:297 /14:535 /15:1072 /16:10145 /17:4420 /18:7678
/19:16085 /20:19124 /21:18553 /22:23944 /23:24807 /24:143768
/25:865 /26:1104 /27:372 /28:735 /29:374 /30:225
/31:0 /32:213
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2708 4068 bellsouth.net, inc.
6298 1979 2006 Cox Communicatons
4538 1761 3301 China Education and Research
1803 1253 1275 SPRINT
2386 1238 1561 AT&T Data Communications Serv
7303 1195 1691 Telecom Argentina Stet-France
11492 1192 1211 Cable One
17488 1187 1379 Hathway IP Over Cable Interne
1785 1118 1650 AppliedTheory Corporation
3549 1089 1452 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:139 12:2155 13:2 14:1 15:22
16:3 17:5 18:13 20:37 24:1082 32:197
38:490 40:92 41:713 43:1 44:2 47:12
50:1 52:3 55:3 56:3 57:47 58:559
59:583 60:469 61:978 62:1291 63:1980 64:3414
65:2359 66:3475 67:1221 68:780 69:2293 70:868
71:132 72:2028 73:6 74:1127 75:171 76:325
77:771 78:800 79:239 80:978 81:875 82:594
83:381 84:572 85:983 86:402 87:730 88:339
89:1330 90:43 91:1447 92:256 93:854 94:111
96:62 97:64 98:317 99:6 114:100 115:47
116:1024 117:353 118:197 119:483 120:88 121:607
122:829 123:402 124:842 125:1238 128:355 129:205
130:134 131:415 132:70 133:9 134:188 135:34
136:223 137:94 138:141 139:102 140:507 141:104
142:405 143:345 144:412 145:51 146:384 147:157
148:514 149:290 150:129 151:179 152:148 153:143
154:10 155:279 156:175 157:300 158:163 159:298
160:272 161:135 162:257 163:158 164:516 165:470
166:381 167:332 168:628 169:142 170:455 171:33
172:10 173:33 188:1 189:605 190:2350 192:5810
193:4267 194:3360 195:2656 196:1026 198:3749 199:3320
200:5962 201:1697 202:8201 203:8115 204:3958 205:2165
206:2449 207:2774 208:3662 209:3405 210:2985 211:1247
212:1431 213:1652 214:176 215:50 216:4364 217:1224
218:404 219:521 220:1067 221:433 222:443
End of report