Routing Table Report 00:00 GMT Wed 03 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: 274573
Prefixes after maximum aggregation: 130993
Deaggregation factor: 2.10
Unique aggregates announced to Internet: 129972
Total ASes present in the Internet Routing Table: 29159
Prefixes per ASN: 9.42
Origin-only ASes present in the Internet Routing Table: 25311
Origin ASes announcing only one prefix: 12287
Transit ASes present in the Internet Routing Table: 3848
Transit-only ASes present in the Internet Routing Table: 87
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 30
Max AS path prepend of ASN (13791) 17
Prefixes from unregistered ASNs in the Routing Table: 609
Unregistered ASNs in the Routing Table: 224
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: 773
Number of addresses announced to Internet: 1915045622
Equivalent to 114 /8s, 37 /16s and 70 /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: 136018
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64545
Total APNIC prefixes after maximum aggregation: 22643
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 61588
Unique aggregates announced from the APNIC address blocks: 25973
APNIC Region origin ASes present in the Internet Routing Table: 3368
APNIC Prefixes per ASN: 18.29
APNIC Region origin ASes announcing only one prefix: 908
APNIC Region transit ASes present in the Internet Routing Table: 530
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 375316384
Equivalent to 22 /8s, 94 /16s and 223 /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: 123718
Total ARIN prefixes after maximum aggregation: 66237
ARIN Deaggregation factor: 1.87
Prefixes being announced from the ARIN address blocks: 91621
Unique aggregates announced from the ARIN address blocks: 35079
ARIN Region origin ASes present in the Internet Routing Table: 12425
ARIN Prefixes per ASN: 7.37
ARIN Region origin ASes announcing only one prefix: 4778
ARIN Region transit ASes present in the Internet Routing Table: 1217
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 362575617
Equivalent to 21 /8s, 156 /16s and 119 /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: 58567
Total RIPE prefixes after maximum aggregation: 35101
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 54145
Unique aggregates announced from the RIPE address blocks: 35405
RIPE Region origin ASes present in the Internet Routing Table: 11819
RIPE Prefixes per ASN: 4.58
RIPE Region origin ASes announcing only one prefix: 6193
RIPE Region transit ASes present in the Internet Routing Table: 1823
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 370423872
Equivalent to 22 /8s, 20 /16s and 56 /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: 23105
Total LACNIC prefixes after maximum aggregation: 5294
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 21356
Unique aggregates announced from the LACNIC address blocks: 10837
LACNIC Region origin ASes present in the Internet Routing Table: 996
LACNIC Prefixes per ASN: 21.44
LACNIC Region origin ASes announcing only one prefix: 323
LACNIC Region transit ASes present in the Internet Routing Table: 168
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 54928910
Equivalent to 3 /8s, 70 /16s and 38 /24s
Percentage of available LACNIC address space announced: 54.6
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: 4030
Total AfriNIC prefixes after maximum aggregation: 1245
AfriNIC Deaggregation factor: 3.24
Prefixes being announced from the AfriNIC address blocks: 4373
Unique aggregates announced from the AfriNIC address blocks: 1955
AfriNIC Region origin ASes present in the Internet Routing Table: 255
AfriNIC Prefixes per ASN: 17.15
AfriNIC Region origin ASes announcing only one prefix: 85
AfriNIC Region transit ASes present in the Internet Routing Table: 54
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 12585472
Equivalent to 0 /8s, 192 /16s and 10 /24s
Percentage of available AfriNIC address space announced: 37.5
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 3306 3214 44 China Education and Research
4755 1721 579 93 Videsh Sanchar Nigam Ltd. Aut
17488 1366 90 103 Hathway IP Over Cable Interne
9583 1111 89 492 Sify Limited
4134 852 13627 342 CHINANET-BACKBONE
4766 843 6407 358 Korea Telecom (KIX)
23577 823 33 728 Korea Telecom (ATM-MPLS)
4780 718 353 61 Digital United Inc.
18101 714 167 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 4285 3416 338 bellsouth.net, inc.
6298 2015 324 718 Cox Communicatons
1785 1648 710 154 AppliedTheory Corporation
2386 1561 692 900 AT&T Data Communications Serv
20115 1525 1259 701 Charter Communications
4323 1497 1071 374 Time Warner Telecom
3549 1458 540 214 Global Crossing
7018 1409 9873 979 AT&T WorldNet Services
1803 1281 8 1011 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 306 666 26 Telewest Broadband
8551 287 270 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 1723 239 67 Telecom Argentina Stet-France
8151 1592 2608 228 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 418 103 67 TVCABLE BOGOTA
16735 413 92 11 Companhia de Telecomunicacoes
11172 407 118 71 Servicios Alestra S.A de C.V
14117 343 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 513 65 35 LINKdotNET AS number
20858 402 34 3 EgyNet
3741 265 855 223 The Internet Solution
2018 233 214 138 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 137 10 13 EEPAD TISP TELECOM & INTERNET
5536 120 8 17 Internet Egypt Network
33776 119 6 3 Starcomms Nigeria Limited
5713 118 555 68 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 4285 3416 338 bellsouth.net, inc.
4538 3306 3214 44 China Education and Research
6298 2015 324 718 Cox Communicatons
7303 1723 239 67 Telecom Argentina Stet-France
4755 1721 579 93 Videsh Sanchar Nigam Ltd. Aut
1785 1648 710 154 AppliedTheory Corporation
8151 1592 2608 228 UniNet S.A. de C.V.
2386 1561 692 900 AT&T Data Communications Serv
20115 1525 1259 701 Charter Communications
4323 1497 1071 374 Time Warner Telecom
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3306 3262 China Education and Research
7303 1723 1656 Telecom Argentina Stet-France
4755 1721 1628 Videsh Sanchar Nigam Ltd. Aut
1785 1648 1494 AppliedTheory Corporation
8151 1592 1364 UniNet S.A. de C.V.
6298 2015 1297 Cox Communicatons
17488 1366 1263 Hathway IP Over Cable Interne
3549 1458 1244 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 /8:19 /9:9 /10:17 /11:46 /12:147
/13:297 /14:536 /15:1073 /16:10148 /17:4426 /18:7688
/19:16094 /20:19132 /21:18611 /22:23991 /23:24776 /24:143665
/25:876 /26:1106 /27:367 /28:740 /29:375 /30:225
/31:0 /32:209
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2846 4285 bellsouth.net, inc.
6298 1988 2015 Cox Communicatons
4538 1762 3306 China Education and Research
1803 1259 1281 SPRINT
2386 1238 1561 AT&T Data Communications Serv
7303 1225 1723 Telecom Argentina Stet-France
11492 1192 1211 Cable One
17488 1174 1366 Hathway IP Over Cable Interne
1785 1119 1648 AppliedTheory Corporation
3549 1093 1458 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:138 12:2162 13:2 14:1 15:22
16:3 17:5 18:13 20:37 24:1076 32:197
38:490 40:92 41:708 43:1 44:2 47:12
52:3 55:3 56:3 57:47 58:559 59:589
60:453 61:973 62:1286 63:1976 64:3414 65:2356
66:3483 67:1227 68:778 69:2296 70:848 71:132
72:2024 73:6 74:1127 75:172 76:288 77:785
78:801 79:246 80:972 81:873 82:586 83:383
84:576 85:981 86:399 87:729 88:339 89:1337
90:43 91:1453 92:254 93:860 94:131 96:63
97:65 98:320 99:6 114:93 115:41 116:1033
117:342 118:202 119:478 120:85 121:606 122:831
123:406 124:851 125:1245 128:356 129:205 130:134
131:411 132:70 133:9 134:188 135:34 136:222
137:93 138:141 139:101 140:505 141:102 142:407
143:321 144:403 145:51 146:383 147:157 148:503
149:291 150:128 151:181 152:147 153:143 154:10
155:283 156:174 157:297 158:163 159:300 160:273
161:137 162:255 163:158 164:516 165:499 166:379
167:451 168:627 169:144 170:456 171:33 172:10
173:33 188:1 189:595 190:2355 192:5814 193:4258
194:3352 195:2655 196:1007 198:3735 199:3303 200:5965
201:1681 202:8210 203:8097 204:3944 205:2151 206:2416
207:2752 208:3668 209:3411 210:2984 211:1253 212:1437
213:1640 214:186 215:50 216:4349 217:1216 218:404
219:522 220:1070 221:428 222:445
End of report