Routing Table Report 00:00 GMT Tue 02 Sep, 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: 274178
Prefixes after maximum aggregation: 130918
Deaggregation factor: 2.09
Unique aggregates announced to Internet: 129887
Total ASes present in the Internet Routing Table: 29124
Prefixes per ASN: 9.41
Origin-only ASes present in the Internet Routing Table: 25295
Origin ASes announcing only one prefix: 12263
Transit ASes present in the Internet Routing Table: 3829
Transit-only ASes present in the Internet Routing Table: 88
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 30
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 615
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: 771
Number of addresses announced to Internet: 1897560822
Equivalent to 113 /8s, 26 /16s and 122 /24s
Percentage of available address space announced: 51.2
Percentage of allocated address space announced: 62.2
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: 135764
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64431
Total APNIC prefixes after maximum aggregation: 22645
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 61477
Unique aggregates announced from the APNIC address blocks: 25981
APNIC Region origin ASes present in the Internet Routing Table: 3358
APNIC Prefixes per ASN: 18.31
APNIC Region origin ASes announcing only one prefix: 903
APNIC Region transit ASes present in the Internet Routing Table: 530
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 375232416
Equivalent to 22 /8s, 93 /16s and 151 /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: 123698
Total ARIN prefixes after maximum aggregation: 66207
ARIN Deaggregation factor: 1.87
Prefixes being announced from the ARIN address blocks: 91634
Unique aggregates announced from the ARIN address blocks: 35072
ARIN Region origin ASes present in the Internet Routing Table: 12417
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4774
ARIN Region transit ASes present in the Internet Routing Table: 1207
Average ARIN Region AS path length visible: 5.1
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 362491393
Equivalent to 21 /8s, 155 /16s and 46 /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: 58373
Total RIPE prefixes after maximum aggregation: 35066
RIPE Deaggregation factor: 1.66
Prefixes being announced from the RIPE address blocks: 53964
Unique aggregates announced from the RIPE address blocks: 35426
RIPE Region origin ASes present in the Internet Routing Table: 11807
RIPE Prefixes per ASN: 4.57
RIPE Region origin ASes announcing only one prefix: 6181
RIPE Region transit ASes present in the Internet Routing Table: 1815
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 370286400
Equivalent to 22 /8s, 18 /16s and 31 /24s
Percentage of available RIPE address space announced: 84.9
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: 23037
Total LACNIC prefixes after maximum aggregation: 5274
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 21280
Unique aggregates announced from the LACNIC address blocks: 10815
LACNIC Region origin ASes present in the Internet Routing Table: 990
LACNIC Prefixes per ASN: 21.49
LACNIC Region origin ASes announcing only one prefix: 320
LACNIC Region transit ASes present in the Internet Routing Table: 166
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 54766862
Equivalent to 3 /8s, 67 /16s and 173 /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: 4024
Total AfriNIC prefixes after maximum aggregation: 1252
AfriNIC Deaggregation factor: 3.21
Prefixes being announced from the AfriNIC address blocks: 4361
Unique aggregates announced from the AfriNIC address blocks: 1898
AfriNIC Region origin ASes present in the Internet Routing Table: 254
AfriNIC Prefixes per ASN: 17.17
AfriNIC Region origin ASes announcing only one prefix: 85
AfriNIC Region transit ASes present in the Internet Routing Table: 52
Average AfriNIC Region AS path length visible: 5.9
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 12651776
Equivalent to 0 /8s, 193 /16s and 13 /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 3303 3214 44 China Education and Research
4755 1720 579 93 Videsh Sanchar Nigam Ltd. Aut
17488 1366 90 103 Hathway IP Over Cable Interne
9583 1113 89 493 Sify Limited
4134 851 13619 341 CHINANET-BACKBONE
4766 842 6407 358 Korea Telecom (KIX)
23577 823 33 728 Korea Telecom (ATM-MPLS)
4780 718 353 61 Digital United Inc.
18101 692 167 29 Reliance Infocom Ltd Internet
9498 676 291 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 4287 3416 337 bellsouth.net, inc.
6298 2013 323 717 Cox Communicatons
1785 1648 710 154 AppliedTheory Corporation
2386 1555 691 898 AT&T Data Communications Serv
4323 1496 1071 373 Time Warner Telecom
20115 1469 1189 676 Charter Communications
3549 1455 539 212 Global Crossing
7018 1407 9872 978 AT&T WorldNet Services
1803 1276 8 1007 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 418 1776 373 TDC Tele Danmark
3215 396 2756 106 France Telecom Transpac
8452 359 188 11 TEDATA
3301 334 1444 305 TeliaNet Sweden
3320 324 7047 272 Deutsche Telekom AG
8866 317 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 1704 236 64 Telecom Argentina Stet-France
8151 1592 2608 226 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 413 92 11 Companhia de Telecomunicacoes
11172 407 118 71 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 519 65 36 LINKdotNET AS number
20858 402 34 3 EgyNet
3741 265 855 223 The Internet Solution
2018 232 214 137 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
5713 117 539 69 Telkom SA Ltd
29571 107 13 8 Ci Telecom Autonomous system
33776 97 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 4287 3416 337 bellsouth.net, inc.
4538 3303 3214 44 China Education and Research
6298 2013 323 717 Cox Communicatons
4755 1720 579 93 Videsh Sanchar Nigam Ltd. Aut
7303 1704 236 64 Telecom Argentina Stet-France
1785 1648 710 154 AppliedTheory Corporation
8151 1592 2608 226 UniNet S.A. de C.V.
2386 1555 691 898 AT&T Data Communications Serv
4323 1496 1071 373 Time Warner Telecom
20115 1469 1189 676 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 3303 3259 China Education and Research
7303 1704 1640 Telecom Argentina Stet-France
4755 1720 1627 Videsh Sanchar Nigam Ltd. Aut
1785 1648 1494 AppliedTheory Corporation
8151 1592 1366 UniNet S.A. de C.V.
6298 2013 1296 Cox Communicatons
17488 1366 1263 Hathway IP Over Cable Interne
3549 1455 1243 Global Crossing
11492 1211 1189 Cable One
4323 1496 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 /8:18 /9:9 /10:17 /11:46 /12:147
/13:297 /14:535 /15:1072 /16:10145 /17:4418 /18:7673
/19:16077 /20:19106 /21:18572 /22:23938 /23:24764 /24:143470
/25:862 /26:1095 /27:370 /28:737 /29:374 /30:224
/31:0 /32:212
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2850 4287 bellsouth.net, inc.
6298 1986 2013 Cox Communicatons
4538 1761 3303 China Education and Research
1803 1254 1276 SPRINT
2386 1233 1555 AT&T Data Communications Serv
7303 1208 1704 Telecom Argentina Stet-France
11492 1192 1211 Cable One
17488 1174 1366 Hathway IP Over Cable Interne
1785 1119 1648 AppliedTheory Corporation
3549 1090 1455 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:135 12:2153 13:2 14:1 15:22
16:3 17:5 18:13 20:37 24:1081 32:197
38:491 40:92 41:685 43:1 44:2 47:12
52:3 55:3 56:3 57:47 58:557 59:589
60:452 61:972 62:1289 63:1974 64:3417 65:2356
66:3477 67:1224 68:779 69:2297 70:871 71:131
72:2022 73:6 74:1126 75:171 76:325 77:784
78:759 79:244 80:965 81:867 82:586 83:379
84:578 85:978 86:397 87:727 88:340 89:1329
90:43 91:1416 92:255 93:859 94:116 96:63
97:65 98:320 99:6 114:92 115:32 116:1030
117:343 118:210 119:481 120:84 121:606 122:830
123:405 124:838 125:1233 128:354 129:205 130:134
131:413 132:70 133:9 134:188 135:34 136:222
137:93 138:141 139:101 140:506 141:103 142:407
143:314 144:409 145:51 146:384 147:157 148:514
149:292 150:127 151:180 152:146 153:143 154:10
155:281 156:174 157:297 158:163 159:298 160:274
161:136 162:257 163:158 164:516 165:499 166:381
167:444 168:627 169:144 170:454 171:33 172:10
173:33 188:1 189:594 190:2348 192:5804 193:4258
194:3348 195:2656 196:1023 198:3734 199:3303 200:5958
201:1678 202:8200 203:8100 204:3931 205:2163 206:2430
207:2755 208:3648 209:3406 210:2984 211:1252 212:1431
213:1639 214:183 215:50 216:4345 217:1211 218:404
219:521 220:1062 221:428 222:445
End of report