Routing Table Report 00:00 GMT Sat 30 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: 274867
Prefixes after maximum aggregation: 131093
Deaggregation factor: 2.10
Unique aggregates announced to Internet: 129903
Total ASes present in the Internet Routing Table: 29176
Prefixes per ASN: 9.42
Origin-only ASes present in the Internet Routing Table: 25268
Origin ASes announcing only one prefix: 12282
Transit ASes present in the Internet Routing Table: 3908
Transit-only ASes present in the Internet Routing Table: 94
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 28
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 608
Unregistered ASNs in the Routing Table: 221
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: 774
Number of addresses announced to Internet: 1914824182
Equivalent to 114 /8s, 33 /16s and 229 /24s
Percentage of available address space announced: 51.7
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: 136127
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64556
Total APNIC prefixes after maximum aggregation: 22693
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 61596
Unique aggregates announced from the APNIC address blocks: 25945
APNIC Region origin ASes present in the Internet Routing Table: 3358
APNIC Prefixes per ASN: 18.34
APNIC Region origin ASes announcing only one prefix: 896
APNIC Region transit ASes present in the Internet Routing Table: 523
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 27
Number of APNIC addresses announced to Internet: 375167136
Equivalent to 22 /8s, 92 /16s and 152 /24s
Percentage of available APNIC address space announced: 79.9
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: 124005
Total ARIN prefixes after maximum aggregation: 66288
ARIN Deaggregation factor: 1.87
Prefixes being announced from the ARIN address blocks: 91946
Unique aggregates announced from the ARIN address blocks: 35147
ARIN Region origin ASes present in the Internet Routing Table: 12437
ARIN Prefixes per ASN: 7.39
ARIN Region origin ASes announcing only one prefix: 4779
ARIN Region transit ASes present in the Internet Routing Table: 1244
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 362674689
Equivalent to 21 /8s, 157 /16s and 250 /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: 58583
Total RIPE prefixes after maximum aggregation: 35108
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 54147
Unique aggregates announced from the RIPE address blocks: 35460
RIPE Region origin ASes present in the Internet Routing Table: 11827
RIPE Prefixes per ASN: 4.58
RIPE Region origin ASes announcing only one prefix: 6196
RIPE Region transit ASes present in the Internet Routing Table: 1856
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 370067008
Equivalent to 22 /8s, 14 /16s and 198 /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: 23056
Total LACNIC prefixes after maximum aggregation: 5270
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 21298
Unique aggregates announced from the LACNIC address blocks: 10812
LACNIC Region origin ASes present in the Internet Routing Table: 995
LACNIC Prefixes per ASN: 21.41
LACNIC Region origin ASes announcing only one prefix: 325
LACNIC Region transit ASes present in the Internet Routing Table: 165
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 28
Number of LACNIC addresses announced to Internet: 54891278
Equivalent to 3 /8s, 69 /16s and 147 /24s
Percentage of available LACNIC address space announced: 54.5
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: 4060
Total AfriNIC prefixes after maximum aggregation: 1258
AfriNIC Deaggregation factor: 3.23
Prefixes being announced from the AfriNIC address blocks: 4411
Unique aggregates announced from the AfriNIC address blocks: 1900
AfriNIC Region origin ASes present in the Internet Routing Table: 254
AfriNIC Prefixes per ASN: 17.37
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: 5.1
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 12648448
Equivalent to 0 /8s, 193 /16s and 0 /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 1719 578 92 Videsh Sanchar Nigam Ltd. Aut
17488 1371 89 104 Hathway IP Over Cable Interne
9583 1128 91 500 Sify Limited
4134 851 13619 341 CHINANET-BACKBONE
4766 844 6407 358 Korea Telecom (KIX)
23577 824 33 729 Korea Telecom (ATM-MPLS)
4780 717 353 61 Digital United Inc.
18101 694 167 31 Reliance Infocom Ltd Internet
9498 675 291 53 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 4311 3386 337 bellsouth.net, inc.
6298 2016 324 712 Cox Communicatons
1785 1650 710 156 AppliedTheory Corporation
2386 1561 677 908 AT&T Data Communications Serv
4323 1500 1071 373 Time Warner Telecom
3549 1478 539 214 Global Crossing
20115 1478 1196 677 Charter Communications
7018 1396 5776 962 AT&T WorldNet Services
1803 1277 8 1008 SPRINT
11492 1214 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 418 1776 373 TDC Tele Danmark
3215 396 2756 106 France Telecom Transpac
8452 358 188 11 TEDATA
3301 334 1444 305 TeliaNet Sweden
3320 323 7047 271 Deutsche Telekom AG
8866 316 77 21 Bulgarian Telecommunication C
5462 307 666 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 1697 235 66 Telecom Argentina Stet-France
8151 1591 2608 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 422 85 49 ENTEL CHILE S.A.
10620 417 102 66 TVCABLE BOGOTA
16735 414 92 11 Companhia de Telecomunicacoes
11172 409 118 73 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 508 65 36 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 4311 3386 337 bellsouth.net, inc.
4538 3301 3214 44 China Education and Research
6298 2016 324 712 Cox Communicatons
4755 1719 578 92 Videsh Sanchar Nigam Ltd. Aut
7303 1697 235 66 Telecom Argentina Stet-France
1785 1650 710 156 AppliedTheory Corporation
8151 1591 2608 225 UniNet S.A. de C.V.
2386 1561 677 908 AT&T Data Communications Serv
4323 1500 1071 373 Time Warner Telecom
3549 1478 539 214 Global Crossing
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
7303 1697 1631 Telecom Argentina Stet-France
4755 1719 1627 Videsh Sanchar Nigam Ltd. Aut
1785 1650 1494 AppliedTheory Corporation
8151 1591 1366 UniNet S.A. de C.V.
6298 2016 1304 Cox Communicatons
17488 1371 1267 Hathway IP Over Cable Interne
3549 1478 1264 Global Crossing
11492 1214 1192 Cable One
4323 1500 1127 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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
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 /8:19 /9:9 /10:17 /11:46 /12:147
/13:297 /14:535 /15:1073 /16:10152 /17:4422 /18:7686
/19:16097 /20:19141 /21:18584 /22:23997 /23:24835 /24:143923
/25:863 /26:1103 /27:372 /28:737 /29:374 /30:225
/31:0 /32:213
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2869 4311 bellsouth.net, inc.
6298 1989 2016 Cox Communicatons
4538 1761 3301 China Education and Research
1803 1255 1277 SPRINT
2386 1239 1561 AT&T Data Communications Serv
7303 1201 1697 Telecom Argentina Stet-France
11492 1195 1214 Cable One
17488 1179 1371 Hathway IP Over Cable Interne
1785 1119 1650 AppliedTheory Corporation
3549 1106 1478 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 12:2158 13:2 14:1 15:22
16:3 17:5 18:13 20:37 24:1082 32:197
38:491 40:92 41:715 43:1 44:2 47:12
52:3 55:3 56:3 57:47 58:559 59:582
60:452 61:978 62:1294 63:1982 64:3421 65:2361
66:3481 67:1226 68:784 69:2299 70:870 71:132
72:2027 73:6 74:1129 75:171 76:325 77:783
78:804 79:243 80:980 81:875 82:595 83:381
84:577 85:984 86:402 87:731 88:340 89:1332
90:43 91:1439 92:251 93:853 94:107 96:62
97:65 98:319 99:7 114:100 115:48 116:1026
117:352 118:199 119:483 120:87 121:607 122:829
123:403 124:844 125:1247 128:356 129:205 130:134
131:415 132:70 133:9 134:188 135:34 136:223
137:95 138:141 139:102 140:507 141:104 142:407
143:344 144:412 145:51 146:384 147:157 148:514
149:292 150:130 151:180 152:148 153:143 154:10
155:279 156:175 157:300 158:163 159:299 160:274
161:136 162:257 163:158 164:516 165:498 166:381
167:332 168:628 169:144 170:456 171:33 172:10
173:33 188:1 189:602 190:2346 192:5815 193:4263
194:3356 195:2663 196:1029 198:3751 199:3323 200:5950
201:1688 202:8207 203:8124 204:3959 205:2165 206:2453
207:2776 208:3669 209:3421 210:2991 211:1255 212:1431
213:1652 214:178 215:50 216:4367 217:1226 218:404
219:521 220:1068 221:436 222:443
End of report