Routing Table Report 00:00 GMT Sun 31 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: 274296
Prefixes after maximum aggregation: 130967
Deaggregation factor: 2.09
Unique aggregates announced to Internet: 129877
Total ASes present in the Internet Routing Table: 29134
Prefixes per ASN: 9.41
Origin-only ASes present in the Internet Routing Table: 25302
Origin ASes announcing only one prefix: 12263
Transit ASes present in the Internet Routing Table: 3832
Transit-only ASes present in the Internet Routing Table: 89
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: 607
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: 772
Number of addresses announced to Internet: 1914160886
Equivalent to 114 /8s, 23 /16s and 198 /24s
Percentage of available address space announced: 51.6
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: 135846
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64351
Total APNIC prefixes after maximum aggregation: 22642
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 61409
Unique aggregates announced from the APNIC address blocks: 25901
APNIC Region origin ASes present in the Internet Routing Table: 3355
APNIC Prefixes per ASN: 18.30
APNIC Region origin ASes announcing only one prefix: 895
APNIC Region transit ASes present in the Internet Routing Table: 533
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 375133856
Equivalent to 22 /8s, 92 /16s and 22 /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: 123881
Total ARIN prefixes after maximum aggregation: 66254
ARIN Deaggregation factor: 1.87
Prefixes being announced from the ARIN address blocks: 91794
Unique aggregates announced from the ARIN address blocks: 35127
ARIN Region origin ASes present in the Internet Routing Table: 12423
ARIN Prefixes per ASN: 7.39
ARIN Region origin ASes announcing only one prefix: 4771
ARIN Region transit ASes present in the Internet Routing Table: 1211
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 362542849
Equivalent to 21 /8s, 155 /16s and 247 /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: 58442
Total RIPE prefixes after maximum aggregation: 35081
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 54053
Unique aggregates announced from the RIPE address blocks: 35442
RIPE Region origin ASes present in the Internet Routing Table: 11812
RIPE Prefixes per ASN: 4.58
RIPE Region origin ASes announcing only one prefix: 6189
RIPE Region transit ASes present in the Internet Routing Table: 1812
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 370136384
Equivalent to 22 /8s, 15 /16s and 213 /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: 23008
Total LACNIC prefixes after maximum aggregation: 5269
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 21263
Unique aggregates announced from the LACNIC address blocks: 10813
LACNIC Region origin ASes present in the Internet Routing Table: 991
LACNIC Prefixes per ASN: 21.46
LACNIC Region origin ASes announcing only one prefix: 321
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: 54870286
Equivalent to 3 /8s, 69 /16s and 65 /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: 4008
Total AfriNIC prefixes after maximum aggregation: 1246
AfriNIC Deaggregation factor: 3.22
Prefixes being announced from the AfriNIC address blocks: 4324
Unique aggregates announced from the AfriNIC address blocks: 1897
AfriNIC Region origin ASes present in the Internet Routing Table: 253
AfriNIC Prefixes per ASN: 17.09
AfriNIC Region origin ASes announcing only one prefix: 87
AfriNIC Region transit ASes present in the Internet Routing Table: 52
Average AfriNIC Region AS path length visible: 6.0
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12635648
Equivalent to 0 /8s, 192 /16s and 206 /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 1719 579 93 Videsh Sanchar Nigam Ltd. Aut
17488 1362 89 103 Hathway IP Over Cable Interne
9583 1114 89 490 Sify Limited
4134 851 13619 341 CHINANET-BACKBONE
4766 842 6407 358 Korea Telecom (KIX)
23577 824 33 729 Korea Telecom (ATM-MPLS)
4780 718 353 61 Digital United Inc.
18101 690 167 29 Reliance Infocom Ltd Internet
9498 674 291 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 4302 3416 343 bellsouth.net, inc.
6298 2013 323 717 Cox Communicatons
1785 1650 710 156 AppliedTheory Corporation
2386 1558 691 900 AT&T Data Communications Serv
4323 1498 1071 373 Time Warner Telecom
20115 1478 1194 670 Charter Communications
3549 1457 539 211 Global Crossing
7018 1410 5777 977 AT&T WorldNet Services
1803 1277 8 1008 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
3301 334 1444 305 TeliaNet Sweden
8452 330 188 11 TEDATA
3320 323 7047 271 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 1697 235 66 Telecom Argentina Stet-France
8151 1591 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
11172 407 118 71 Servicios Alestra S.A de C.V
16735 407 92 11 Companhia de Telecomunicacoes
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 117 539 71 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 4302 3416 343 bellsouth.net, inc.
4538 3303 3214 44 China Education and Research
6298 2013 323 717 Cox Communicatons
4755 1719 579 93 Videsh Sanchar Nigam Ltd. Aut
7303 1697 235 66 Telecom Argentina Stet-France
1785 1650 710 156 AppliedTheory Corporation
8151 1591 2608 226 UniNet S.A. de C.V.
2386 1558 691 900 AT&T Data Communications Serv
4323 1498 1071 373 Time Warner Telecom
20115 1478 1194 670 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 1697 1631 Telecom Argentina Stet-France
4755 1719 1626 Videsh Sanchar Nigam Ltd. Aut
1785 1650 1494 AppliedTheory Corporation
8151 1591 1365 UniNet S.A. de C.V.
6298 2013 1296 Cox Communicatons
17488 1362 1259 Hathway IP Over Cable Interne
3549 1457 1246 Global Crossing
11492 1211 1189 Cable One
4323 1498 1125 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 /14:535 /15:1072 /16:10142 /17:4422 /18:7679
/19:16079 /20:19113 /21:18528 /22:23934 /23:24755 /24:143627
/25:861 /26:1097 /27:369 /28:737 /29:374 /30:224
/31:0 /32:213
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2858 4302 bellsouth.net, inc.
6298 1986 2013 Cox Communicatons
4538 1761 3303 China Education and Research
1803 1255 1277 SPRINT
2386 1236 1558 AT&T Data Communications Serv
7303 1201 1697 Telecom Argentina Stet-France
11492 1192 1211 Cable One
17488 1170 1362 Hathway IP Over Cable Interne
1785 1119 1650 AppliedTheory Corporation
3549 1093 1457 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:137 12:2155 13:2 14:1 15:22
16:3 17:5 18:13 20:37 24:1080 32:197
38:491 40:92 41:690 43:1 44:2 47:12
52:3 55:3 56:3 57:47 58:559 59:582
60:452 61:975 62:1287 63:1977 64:3419 65:2361
66:3480 67:1223 68:780 69:2297 70:871 71:132
72:2026 73:6 74:1128 75:171 76:325 77:783
78:801 79:240 80:978 81:855 82:594 83:382
84:577 85:978 86:400 87:729 88:340 89:1327
90:43 91:1437 92:251 93:853 94:115 96:62
97:65 98:319 99:7 114:93 115:41 116:1022
117:356 118:203 119:481 120:85 121:606 122:828
123:403 124:836 125:1238 128:352 129:205 130:134
131:412 132:70 133:9 134:188 135:34 136:223
137:93 138:141 139:101 140:507 141:103 142:407
143:311 144:411 145:51 146:382 147:157 148:510
149:292 150:128 151:181 152:147 153:143 154:10
155:281 156:174 157:300 158:163 159:299 160:274
161:136 162:257 163:158 164:516 165:495 166:381
167:446 168:627 169:144 170:456 171:33 172:10
173:33 188:1 189:590 190:2357 192:5800 193:4251
194:3352 195:2658 196:1022 198:3741 199:3304 200:5951
201:1679 202:8183 203:8091 204:3947 205:2164 206:2438
207:2776 208:3667 209:3415 210:2987 211:1252 212:1426
213:1638 214:183 215:49 216:4351 217:1221 218:404
219:521 220:1067 221:429 222:444
End of report