Routing Table Report 00:00 GMT Sat 02 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: 270667
Prefixes after maximum aggregation: 130650
Deaggregation factor: 2.07
Unique aggregates announced to Internet: 129000
Total ASes present in the Internet Routing Table: 28892
Prefixes per ASN: 9.37
Origin-only ASes present in the Internet Routing Table: 25066
Origin ASes announcing only one prefix: 12180
Transit ASes present in the Internet Routing Table: 3826
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 29
Max AS path prepend of ASN (18678) 21
Prefixes from unregistered ASNs in the Routing Table: 594
Unregistered ASNs in the Routing Table: 226
Number of 32-bit ASNs allocated by the RIRs: 53
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: 806
Number of addresses announced to Internet: 1890093362
Equivalent to 112 /8s, 168 /16s and 137 /24s
Percentage of available address space announced: 51.0
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 82.3
Percentage of address space in use by end-sites: 73.0
Total number of prefixes smaller than registry allocations: 133429
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 62714
Total APNIC prefixes after maximum aggregation: 22628
APNIC Deaggregation factor: 2.77
Prefixes being announced from the APNIC address blocks: 59796
Unique aggregates announced from the APNIC address blocks: 25783
APNIC Region origin ASes present in the Internet Routing Table: 3328
APNIC Prefixes per ASN: 17.97
APNIC Region origin ASes announcing only one prefix: 894
APNIC Region transit ASes present in the Internet Routing Table: 527
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 370058144
Equivalent to 22 /8s, 14 /16s and 163 /24s
Percentage of available APNIC address space announced: 78.8
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: 122926
Total ARIN prefixes after maximum aggregation: 66401
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 91595
Unique aggregates announced from the ARIN address blocks: 35052
ARIN Region origin ASes present in the Internet Routing Table: 12367
ARIN Prefixes per ASN: 7.41
ARIN Region origin ASes announcing only one prefix: 4781
ARIN Region transit ASes present in the Internet Routing Table: 1197
Average ARIN Region AS path length visible: 3.9
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 361340929
Equivalent to 21 /8s, 137 /16s and 160 /24s
Percentage of available ARIN address space announced: 74.3
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: 57740
Total RIPE prefixes after maximum aggregation: 34706
RIPE Deaggregation factor: 1.66
Prefixes being announced from the RIPE address blocks: 53157
Unique aggregates announced from the RIPE address blocks: 34938
RIPE Region origin ASes present in the Internet Routing Table: 11687
RIPE Prefixes per ASN: 4.55
RIPE Region origin ASes announcing only one prefix: 6118
RIPE Region transit ASes present in the Internet Routing Table: 1818
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 368034624
Equivalent to 21 /8s, 239 /16s and 195 /24s
Percentage of available RIPE address space announced: 84.4
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, 47104-48127
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: 22659
Total LACNIC prefixes after maximum aggregation: 5223
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 20939
Unique aggregates announced from the LACNIC address blocks: 10763
LACNIC Region origin ASes present in the Internet Routing Table: 976
LACNIC Prefixes per ASN: 21.45
LACNIC Region origin ASes announcing only one prefix: 311
LACNIC Region transit ASes present in the Internet Routing Table: 168
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 29
Number of LACNIC addresses announced to Internet: 54045706
Equivalent to 3 /8s, 56 /16s and 172 /24s
Percentage of available LACNIC address space announced: 53.7
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: 4042
Total AfriNIC prefixes after maximum aggregation: 1214
AfriNIC Deaggregation factor: 3.33
Prefixes being announced from the AfriNIC address blocks: 4400
Unique aggregates announced from the AfriNIC address blocks: 1903
AfriNIC Region origin ASes present in the Internet Routing Table: 245
AfriNIC Prefixes per ASN: 17.96
AfriNIC Region origin ASes announcing only one prefix: 76
AfriNIC Region transit ASes present in the Internet Routing Table: 48
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC addresses announced to Internet: 12521472
Equivalent to 0 /8s, 191 /16s and 16 /24s
Percentage of available AfriNIC address space announced: 37.3
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 2099 3134 41 China Education and Research
4755 1690 386 87 Videsh Sanchar Nigam Ltd. Aut
17488 1267 87 91 Hathway IP Over Cable Interne
9583 1145 87 485 Sify Limited
4134 844 13619 339 CHINANET-BACKBONE
23577 833 34 734 Korea Telecom (ATM-MPLS)
4766 823 6390 347 Korea Telecom (KIX)
4780 716 353 64 Digital United Inc.
18101 711 167 33 Reliance Infocom Ltd Internet
9498 665 291 55 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 3204 3359 213 bellsouth.net, inc.
6298 1778 270 769 Cox Communicatons
4323 1492 1076 380 Time Warner Telecom
2386 1490 660 891 AT&T Data Communications Serv
3549 1443 539 213 Global Crossing
7018 1413 9901 984 AT&T WorldNet Services
1785 1390 478 102 AppliedTheory Corporation
1803 1249 7 989 SPRINT
11492 1215 151 23 Cable One
20115 1116 1081 570 Charter Communications
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 1792 372 TDC Tele Danmark
3215 382 2756 106 France Telecom Transpac
8452 347 188 11 TEDATA
3301 332 1460 303 TeliaNet Sweden
3320 321 7047 269 Deutsche Telekom AG
8866 316 77 21 Bulgarian Telecommunication C
5462 308 666 27 Telewest Broadband
8551 288 270 38 Bezeq International
680 274 2047 264 DFN-IP service G-WiN
1257 274 1130 203 SWIPnet Swedish IP Network
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 1687 234 62 Telecom Argentina Stet-France
8151 1444 2590 227 UniNet S.A. de C.V.
11830 612 299 14 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 416 85 48 ENTEL CHILE S.A.
11172 408 118 71 Servicios Alestra S.A de C.V
10620 405 106 58 TVCABLE BOGOTA
16735 396 92 12 Companhia de Telecomunicacoes
14117 375 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 479 62 20 LINKdotNET AS number
20858 398 34 3 EgyNet
3741 267 855 223 The Internet Solution
2018 212 213 131 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 135 10 12 EEPAD TISP TELECOM & INTERNET
5713 129 540 74 Telkom SA Ltd
5536 120 8 17 Internet Egypt Network
33776 114 6 3 Starcomms Nigeria Limited
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 3204 3359 213 bellsouth.net, inc.
4538 2099 3134 41 China Education and Research
6298 1778 270 769 Cox Communicatons
4755 1690 386 87 Videsh Sanchar Nigam Ltd. Aut
7303 1687 234 62 Telecom Argentina Stet-France
4323 1492 1076 380 Time Warner Telecom
2386 1490 660 891 AT&T Data Communications Serv
8151 1444 2590 227 UniNet S.A. de C.V.
3549 1443 539 213 Global Crossing
7018 1413 9901 984 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 2099 2058 China Education and Research
7303 1687 1625 Telecom Argentina Stet-France
4755 1690 1603 Videsh Sanchar Nigam Ltd. Aut
1785 1390 1288 AppliedTheory Corporation
3549 1443 1230 Global Crossing
8151 1444 1217 UniNet S.A. de C.V.
11492 1215 1192 Cable One
17488 1267 1176 Hathway IP Over Cable Interne
4323 1492 1112 Time Warner Telecom
18566 1045 1035 Covad 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
22492 UNALLOCATED 12.2.46.0/24 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
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
27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 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
10.29.246.49/32 286 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
24.48.244.0/23 7843 Adelphia Corp.
24.48.246.0/24 7843 Adelphia Corp.
24.51.159.0/24 7843 Adelphia Corp.
24.54.23.0/24 7843 Adelphia Corp.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.75.160.0/19 7843 Adelphia Corp.
24.75.192.0/18 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
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 /11:47 /12:148
/13:299 /14:526 /15:1060 /16:10114 /17:4378 /18:7560
/19:15889 /20:18681 /21:18246 /22:23475 /23:24141 /24:142175
/25:879 /26:1112 /27:365 /28:723 /29:368 /30:219
/31:0 /32:217
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2033 3204 bellsouth.net, inc.
6298 1752 1778 Cox Communicatons
1803 1227 1249 SPRINT
11492 1196 1215 Cable One
7303 1191 1687 Telecom Argentina Stet-France
2386 1180 1490 AT&T Data Communications Serv
3549 1080 1443 Global Crossing
17488 1077 1267 Hathway IP Over Cable Interne
1785 1047 1390 AppliedTheory Corporation
4755 1040 1690 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:129 12:2122 13:2 14:2 15:22
16:3 17:5 18:13 20:37 24:1091 32:198
38:469 40:92 41:689 43:1 44:2 47:12
50:1 52:3 55:3 56:3 57:46 58:560
59:540 60:456 61:1002 62:1229 63:1969 64:3514
65:2373 66:3557 67:1219 68:747 69:2293 70:820
71:116 72:2004 73:6 74:1072 75:154 76:314
77:760 78:763 79:212 80:977 81:873 82:605
83:383 84:564 85:954 86:401 87:697 88:339
89:1302 90:31 91:1404 92:237 93:761 94:89
96:52 97:41 98:290 99:4 112:1 113:1
114:77 115:28 116:906 117:342 118:189 119:447
120:61 121:575 122:811 123:392 124:906 125:1180
128:360 129:201 130:135 131:412 132:66 133:9
134:187 135:33 136:221 137:95 138:147 139:100
140:497 141:98 142:403 143:315 144:394 145:51
146:383 147:157 148:483 149:197 150:125 151:182
152:140 153:143 154:10 155:252 156:173 157:292
158:187 159:239 160:275 161:119 162:215 163:155
164:516 165:466 166:334 167:331 168:627 169:139
170:451 171:32 172:10 188:1 189:391 190:2437
192:5799 193:4219 194:3280 195:2602 196:1026 198:3731
199:3312 200:5959 201:1640 202:8212 203:8065 204:3982
205:2145 206:2442 207:2779 208:3645 209:3550 210:2968
211:1237 212:1429 213:1614 214:161 215:49 216:4543
217:1248 218:395 219:511 220:1063 221:455 222:375
End of report