Routing Table Report 00:00 GMT Fri 01 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: 270571
Prefixes after maximum aggregation: 130711
Deaggregation factor: 2.07
Unique aggregates announced to Internet: 129014
Total ASes present in the Internet Routing Table: 28867
Prefixes per ASN: 9.37
Origin-only ASes present in the Internet Routing Table: 25055
Origin ASes announcing only one prefix: 12147
Transit ASes present in the Internet Routing Table: 3812
Transit-only ASes present in the Internet Routing Table: 90
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 35
Max AS path prepend of ASN (35412) 22
Prefixes from unregistered ASNs in the Routing Table: 605
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: 8
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 807
Number of addresses announced to Internet: 1906329906
Equivalent to 113 /8s, 160 /16s and 73 /24s
Percentage of available address space announced: 51.4
Percentage of allocated address space announced: 62.5
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: 133389
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 62642
Total APNIC prefixes after maximum aggregation: 22656
APNIC Deaggregation factor: 2.76
Prefixes being announced from the APNIC address blocks: 59718
Unique aggregates announced from the APNIC address blocks: 25751
APNIC Region origin ASes present in the Internet Routing Table: 3334
APNIC Prefixes per ASN: 17.91
APNIC Region origin ASes announcing only one prefix: 894
APNIC Region transit ASes present in the Internet Routing Table: 534
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 370015136
Equivalent to 22 /8s, 13 /16s and 251 /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: 122931
Total ARIN prefixes after maximum aggregation: 66439
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 91607
Unique aggregates announced from the ARIN address blocks: 35075
ARIN Region origin ASes present in the Internet Routing Table: 12342
ARIN Prefixes per ASN: 7.42
ARIN Region origin ASes announcing only one prefix: 4760
ARIN Region transit ASes present in the Internet Routing Table: 1195
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 361308417
Equivalent to 21 /8s, 137 /16s and 33 /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: 57739
Total RIPE prefixes after maximum aggregation: 34689
RIPE Deaggregation factor: 1.66
Prefixes being announced from the RIPE address blocks: 53160
Unique aggregates announced from the RIPE address blocks: 34931
RIPE Region origin ASes present in the Internet Routing Table: 11672
RIPE Prefixes per ASN: 4.55
RIPE Region origin ASes announcing only one prefix: 6108
RIPE Region transit ASes present in the Internet Routing Table: 1792
Average RIPE Region AS path length visible: 4.5
Max RIPE Region AS path length visible: 35
Number of RIPE addresses announced to Internet: 367445056
Equivalent to 21 /8s, 230 /16s and 196 /24s
Percentage of available RIPE address space announced: 84.2
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: 22627
Total LACNIC prefixes after maximum aggregation: 5230
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 20871
Unique aggregates announced from the LACNIC address blocks: 10760
LACNIC Region origin ASes present in the Internet Routing Table: 974
LACNIC Prefixes per ASN: 21.43
LACNIC Region origin ASes announcing only one prefix: 308
LACNIC Region transit ASes present in the Internet Routing Table: 167
Average LACNIC Region AS path length visible: 4.7
Max LACNIC Region AS path length visible: 27
Number of LACNIC addresses announced to Internet: 54033162
Equivalent to 3 /8s, 56 /16s and 123 /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: 4035
Total AfriNIC prefixes after maximum aggregation: 1217
AfriNIC Deaggregation factor: 3.32
Prefixes being announced from the AfriNIC address blocks: 4392
Unique aggregates announced from the AfriNIC address blocks: 1888
AfriNIC Region origin ASes present in the Internet Routing Table: 246
AfriNIC Prefixes per ASN: 17.85
AfriNIC Region origin ASes announcing only one prefix: 77
AfriNIC Region transit ASes present in the Internet Routing Table: 49
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12510208
Equivalent to 0 /8s, 190 /16s and 228 /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 1688 386 88 Videsh Sanchar Nigam Ltd. Aut
17488 1258 86 90 Hathway IP Over Cable Interne
9583 1134 86 486 Sify Limited
4134 843 13619 338 CHINANET-BACKBONE
23577 835 34 736 Korea Telecom (ATM-MPLS)
4766 824 6390 348 Korea Telecom (KIX)
4780 716 353 64 Digital United Inc.
18101 711 167 33 Reliance Infocom Ltd Internet
9498 663 291 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 3203 3359 213 bellsouth.net, inc.
6298 1774 254 767 Cox Communicatons
4323 1490 1062 380 Time Warner Telecom
2386 1486 651 887 AT&T Data Communications Serv
3549 1442 539 213 Global Crossing
7018 1407 9916 979 AT&T WorldNet Services
1785 1389 478 102 AppliedTheory Corporation
1803 1249 7 989 SPRINT
11492 1213 151 23 Cable One
20115 1114 1080 571 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 416 1792 371 TDC Tele Danmark
3215 356 2756 106 France Telecom Transpac
8452 347 188 11 TEDATA
3301 332 1460 303 TeliaNet Sweden
3320 322 7047 270 Deutsche Telekom AG
8866 316 77 21 Bulgarian Telecommunication C
5462 308 666 27 Telewest Broadband
8551 287 270 38 Bezeq International
680 274 2047 264 DFN-IP service G-WiN
1257 272 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 1686 234 61 Telecom Argentina Stet-France
8151 1392 2539 216 UniNet S.A. de C.V.
11830 612 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 417 85 48 ENTEL CHILE S.A.
11172 407 102 70 Servicios Alestra S.A de C.V
10620 405 106 58 TVCABLE BOGOTA
16735 398 92 13 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 478 62 19 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 115 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 3203 3359 213 bellsouth.net, inc.
4538 2099 3134 41 China Education and Research
6298 1774 254 767 Cox Communicatons
4755 1688 386 88 Videsh Sanchar Nigam Ltd. Aut
7303 1686 234 61 Telecom Argentina Stet-France
4323 1490 1062 380 Time Warner Telecom
2386 1486 651 887 AT&T Data Communications Serv
3549 1442 539 213 Global Crossing
7018 1407 9916 979 AT&T WorldNet Services
8151 1392 2539 216 UniNet S.A. de C.V.
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 1686 1625 Telecom Argentina Stet-France
4755 1688 1600 Videsh Sanchar Nigam Ltd. Aut
1785 1389 1287 AppliedTheory Corporation
3549 1442 1229 Global Crossing
11492 1213 1190 Cable One
8151 1392 1176 UniNet S.A. de C.V.
17488 1258 1168 Hathway IP Over Cable Interne
4323 1490 1110 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
/13:298 /14:526 /15:1060 /16:10113 /17:4376 /18:7561
/19:15884 /20:18674 /21:18255 /22:23467 /23:24117 /24:142120
/25:878 /26:1114 /27:369 /28:720 /29:368 /30:220
/31:0 /32:211
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2034 3203 bellsouth.net, inc.
6298 1749 1774 Cox Communicatons
1803 1226 1249 SPRINT
11492 1194 1213 Cable One
7303 1190 1686 Telecom Argentina Stet-France
2386 1180 1486 AT&T Data Communications Serv
3549 1079 1442 Global Crossing
17488 1068 1258 Hathway IP Over Cable Interne
1785 1046 1389 AppliedTheory Corporation
4755 1036 1688 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 12:2119 13:2 14:1 15:23
16:3 17:5 18:13 20:37 24:1097 32:198
38:468 40:92 41:683 43:1 44:2 47:12
50:2 52:3 55:3 56:3 57:46 58:562
59:524 60:455 61:1005 62:1229 63:1968 64:3524
65:2374 66:3559 67:1216 68:744 69:2294 70:818
71:117 72:2006 73:6 74:1072 75:154 76:314
77:762 78:763 79:212 80:978 81:862 82:614
83:384 84:568 85:955 86:414 87:698 88:339
89:1322 90:15 91:1403 92:233 93:761 94:90
96:52 97:39 98:288 99:4 112:1 113:1
114:74 115:21 116:889 117:342 118:187 119:448
120:60 121:572 122:811 123:374 124:905 125:1180
128:360 129:201 130:135 131:410 132:66 133:9
134:188 135:33 136:223 137:95 138:146 139:100
140:497 141:98 142:405 143:322 144:393 145:51
146:380 147:156 148:517 149:197 150:125 151:182
152:146 153:143 154:10 155:251 156:173 157:291
158:187 159:239 160:275 161:119 162:215 163:155
164:517 165:466 166:334 167:331 168:627 169:139
170:452 171:32 172:10 188:1 189:364 190:2442
192:5801 193:4216 194:3282 195:2600 196:1025 198:3732
199:3307 200:5950 201:1629 202:8206 203:8057 204:3981
205:2145 206:2447 207:2781 208:3641 209:3549 210:2972
211:1237 212:1437 213:1614 214:155 215:49 216:4542
217:1246 218:395 219:511 220:1065 221:453 222:375
End of report