Routing Table Report 00:00 GMT Thu 28 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: 274656
Prefixes after maximum aggregation: 131228
Deaggregation factor: 2.09
Unique aggregates announced to Internet: 129802
Total ASes present in the Internet Routing Table: 29167
Prefixes per ASN: 9.42
Origin-only ASes present in the Internet Routing Table: 25235
Origin ASes announcing only one prefix: 12262
Transit ASes present in the Internet Routing Table: 3932
Transit-only ASes present in the Internet Routing Table: 101
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 28
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 583
Unregistered ASNs in the Routing Table: 223
Number of 32-bit ASNs allocated by the RIRs: 58
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: 778
Number of addresses announced to Internet: 1915037494
Equivalent to 114 /8s, 37 /16s and 39 /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: 136035
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64588
Total APNIC prefixes after maximum aggregation: 22693
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 61653
Unique aggregates announced from the APNIC address blocks: 25920
APNIC Region origin ASes present in the Internet Routing Table: 3362
APNIC Prefixes per ASN: 18.34
APNIC Region origin ASes announcing only one prefix: 898
APNIC Region transit ASes present in the Internet Routing Table: 539
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 374432416
Equivalent to 22 /8s, 81 /16s and 98 /24s
Percentage of available APNIC address space announced: 79.7
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: 123724
Total ARIN prefixes after maximum aggregation: 66453
ARIN Deaggregation factor: 1.86
Prefixes being announced from the ARIN address blocks: 91946
Unique aggregates announced from the ARIN address blocks: 35134
ARIN Region origin ASes present in the Internet Routing Table: 12428
ARIN Prefixes per ASN: 7.40
ARIN Region origin ASes announcing only one prefix: 4766
ARIN Region transit ASes present in the Internet Routing Table: 1249
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 362856449
Equivalent to 21 /8s, 160 /16s and 192 /24s
Percentage of available ARIN address space announced: 74.6
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: 58704
Total RIPE prefixes after maximum aggregation: 35085
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 54076
Unique aggregates announced from the RIPE address blocks: 35434
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: 6196
RIPE Region transit ASes present in the Internet Routing Table: 1851
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 370053248
Equivalent to 22 /8s, 14 /16s and 144 /24s
Percentage of available RIPE address space announced: 84.8
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: 23001
Total LACNIC prefixes after maximum aggregation: 5264
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 21253
Unique aggregates announced from the LACNIC address blocks: 10761
LACNIC Region origin ASes present in the Internet Routing Table: 989
LACNIC Prefixes per ASN: 21.49
LACNIC Region origin ASes announcing only one prefix: 315
LACNIC Region transit ASes present in the Internet Routing Table: 169
Average LACNIC Region AS path length visible: 5.6
Max LACNIC Region AS path length visible: 28
Number of LACNIC addresses announced to Internet: 54642958
Equivalent to 3 /8s, 65 /16s and 201 /24s
Percentage of available LACNIC address space announced: 54.3
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: 4057
Total AfriNIC prefixes after maximum aggregation: 1257
AfriNIC Deaggregation factor: 3.23
Prefixes being announced from the AfriNIC address blocks: 4408
Unique aggregates announced from the AfriNIC address blocks: 1904
AfriNIC Region origin ASes present in the Internet Routing Table: 258
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: 4.6
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 12656640
Equivalent to 0 /8s, 193 /16s and 32 /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 3302 3214 44 China Education and Research
4755 1716 578 91 Videsh Sanchar Nigam Ltd. Aut
17488 1358 89 104 Hathway IP Over Cable Interne
9583 1201 96 496 Sify Limited
4134 851 13619 341 CHINANET-BACKBONE
4766 841 6407 356 Korea Telecom (KIX)
23577 824 33 729 Korea Telecom (ATM-MPLS)
4780 723 353 61 Digital United Inc.
18101 694 167 33 Reliance Infocom Ltd Internet
9498 677 291 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 4068 3417 332 bellsouth.net, inc.
6298 2005 322 708 Cox Communicatons
1785 1651 710 155 AppliedTheory Corporation
2386 1559 692 901 AT&T Data Communications Serv
4323 1496 1073 374 Time Warner Telecom
3549 1454 539 211 Global Crossing
7018 1423 9890 986 AT&T WorldNet Services
20115 1320 1145 656 Charter Communications
1803 1273 8 1005 SPRINT
11492 1214 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 417 1776 372 TDC Tele Danmark
3215 396 2756 106 France Telecom Transpac
8452 359 188 11 TEDATA
3301 333 1444 304 TeliaNet Sweden
3320 322 7047 270 Deutsche Telekom AG
8866 316 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 1692 235 68 Telecom Argentina Stet-France
8151 1531 2590 225 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 420 85 48 ENTEL CHILE S.A.
10620 415 102 71 TVCABLE BOGOTA
16735 414 92 11 Companhia de Telecomunicacoes
11172 409 118 72 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 507 64 35 LINKdotNET AS number
20858 402 34 3 EgyNet
3741 265 855 223 The Internet Solution
2018 228 214 135 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 118 539 70 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 4068 3417 332 bellsouth.net, inc.
4538 3302 3214 44 China Education and Research
6298 2005 322 708 Cox Communicatons
4755 1716 578 91 Videsh Sanchar Nigam Ltd. Aut
7303 1692 235 68 Telecom Argentina Stet-France
1785 1651 710 155 AppliedTheory Corporation
2386 1559 692 901 AT&T Data Communications Serv
8151 1531 2590 225 UniNet S.A. de C.V.
4323 1496 1073 374 Time Warner Telecom
3549 1454 539 211 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 3302 3258 China Education and Research
4755 1716 1625 Videsh Sanchar Nigam Ltd. Aut
7303 1692 1624 Telecom Argentina Stet-France
1785 1651 1496 AppliedTheory Corporation
8151 1531 1306 UniNet S.A. de C.V.
6298 2005 1297 Cox Communicatons
17488 1358 1254 Hathway IP Over Cable Interne
3549 1454 1243 Global Crossing
11492 1214 1192 Cable One
4323 1496 1122 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
/13:298 /14:539 /15:1071 /16:10146 /17:4439 /18:7681
/19:16083 /20:19131 /21:18566 /22:24001 /23:24848 /24:143727
/25:864 /26:1105 /27:374 /28:733 /29:374 /30:225
/31:0 /32:213
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2709 4068 bellsouth.net, inc.
6298 1978 2005 Cox Communicatons
4538 1761 3302 China Education and Research
1803 1251 1273 SPRINT
2386 1236 1559 AT&T Data Communications Serv
7303 1196 1692 Telecom Argentina Stet-France
11492 1195 1214 Cable One
17488 1166 1358 Hathway IP Over Cable Interne
1785 1118 1651 AppliedTheory Corporation
3549 1091 1454 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 12:2152 13:2 14:1 15:22
16:3 17:5 18:13 20:37 24:1082 32:197
38:490 40:92 41:711 43:1 44:2 47:12
52:3 55:3 56:3 57:47 58:564 59:584
60:453 61:995 62:1258 63:1982 64:3422 65:2360
66:3471 67:1230 68:781 69:2303 70:871 71:135
72:2031 73:6 74:1120 75:171 76:324 77:784
78:823 79:239 80:978 81:875 82:595 83:386
84:573 85:982 86:402 87:738 88:340 89:1334
90:43 91:1451 92:255 93:852 94:111 96:59
97:63 98:315 99:6 114:100 115:47 116:1016
117:354 118:205 119:484 120:88 121:607 122:829
123:402 124:849 125:1238 128:355 129:205 130:134
131:414 132:70 133:9 134:188 135:34 136:223
137:94 138:141 139:101 140:509 141:104 142:406
143:342 144:399 145:51 146:384 147:157 148:516
149:203 150:129 151:183 152:148 153:143 154:10
155:278 156:175 157:299 158:163 159:294 160:273
161:135 162:263 163:156 164:518 165:469 166:380
167:333 168:630 169:141 170:454 171:33 172:10
173:33 188:1 189:558 190:2365 192:5816 193:4237
194:3298 195:2636 196:1031 198:3751 199:3322 200:5953
201:1693 202:8244 203:8124 204:3962 205:2165 206:2450
207:2777 208:3666 209:3412 210:2995 211:1248 212:1460
213:1647 214:180 215:50 216:4372 217:1225 218:403
219:521 220:1068 221:459 222:441
End of report