Routing Table Report 00:00 GMT Fri 22 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: 273622
Prefixes after maximum aggregation: 131051
Deaggregation factor: 2.09
Unique aggregates announced to Internet: 129360
Total ASes present in the Internet Routing Table: 29060
Prefixes per ASN: 9.42
Origin-only ASes present in the Internet Routing Table: 25169
Origin ASes announcing only one prefix: 12227
Transit ASes present in the Internet Routing Table: 3891
Transit-only ASes present in the Internet Routing Table: 93
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 29
Max AS path prepend of ASN (17957) 20
Prefixes from unregistered ASNs in the Routing Table: 608
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: 789
Number of addresses announced to Internet: 1913157116
Equivalent to 114 /8s, 8 /16s and 117 /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: 73.2
Total number of prefixes smaller than registry allocations: 135544
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64205
Total APNIC prefixes after maximum aggregation: 22642
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 61272
Unique aggregates announced from the APNIC address blocks: 25774
APNIC Region origin ASes present in the Internet Routing Table: 3345
APNIC Prefixes per ASN: 18.32
APNIC Region origin ASes announcing only one prefix: 888
APNIC Region transit ASes present in the Internet Routing Table: 534
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 373681056
Equivalent to 22 /8s, 69 /16s and 235 /24s
Percentage of available APNIC address space announced: 79.5
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: 123264
Total ARIN prefixes after maximum aggregation: 66535
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 91620
Unique aggregates announced from the ARIN address blocks: 35030
ARIN Region origin ASes present in the Internet Routing Table: 12408
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4764
ARIN Region transit ASes present in the Internet Routing Table: 1234
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 362503425
Equivalent to 21 /8s, 155 /16s and 93 /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: 58236
Total RIPE prefixes after maximum aggregation: 34925
RIPE Deaggregation factor: 1.67
Prefixes being announced from the RIPE address blocks: 53651
Unique aggregates announced from the RIPE address blocks: 35283
RIPE Region origin ASes present in the Internet Routing Table: 11765
RIPE Prefixes per ASN: 4.56
RIPE Region origin ASes announcing only one prefix: 6177
RIPE Region transit ASes present in the Internet Routing Table: 1836
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 29
Number of RIPE addresses announced to Internet: 369539648
Equivalent to 22 /8s, 6 /16s and 186 /24s
Percentage of available RIPE address space announced: 84.7
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: 23301
Total LACNIC prefixes after maximum aggregation: 5238
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 21559
Unique aggregates announced from the LACNIC address blocks: 10737
LACNIC Region origin ASes present in the Internet Routing Table: 985
LACNIC Prefixes per ASN: 21.89
LACNIC Region origin ASes announcing only one prefix: 316
LACNIC Region transit ASes present in the Internet Routing Table: 167
Average LACNIC Region AS path length visible: 5.5
Max LACNIC Region AS path length visible: 28
Number of LACNIC addresses announced to Internet: 54544148
Equivalent to 3 /8s, 64 /16s and 71 /24s
Percentage of available LACNIC address space announced: 54.2
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: 1232
AfriNIC Deaggregation factor: 3.25
Prefixes being announced from the AfriNIC address blocks: 4364
Unique aggregates announced from the AfriNIC address blocks: 1932
AfriNIC Region origin ASes present in the Internet Routing Table: 254
AfriNIC Prefixes per ASN: 17.18
AfriNIC Region origin ASes announcing only one prefix: 82
AfriNIC Region transit ASes present in the Internet Routing Table: 50
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 12624384
Equivalent to 0 /8s, 192 /16s and 162 /24s
Percentage of available AfriNIC address space announced: 37.6
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 3299 3214 44 China Education and Research
4755 1707 578 91 Videsh Sanchar Nigam Ltd. Aut
17488 1308 90 97 Hathway IP Over Cable Interne
9583 1171 92 499 Sify Limited
4134 849 13523 339 CHINANET-BACKBONE
4766 839 6407 356 Korea Telecom (KIX)
23577 826 33 731 Korea Telecom (ATM-MPLS)
4780 721 353 61 Digital United Inc.
18101 694 167 33 Reliance Infocom Ltd Internet
9498 678 291 56 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 3200 3358 208 bellsouth.net, inc.
6298 1981 319 726 Cox Communicatons
1785 1648 710 156 AppliedTheory Corporation
2386 1557 692 899 AT&T Data Communications Serv
4323 1495 1073 376 Time Warner Telecom
3549 1450 539 213 Global Crossing
7018 1421 9905 991 AT&T WorldNet Services
1803 1263 7 1000 SPRINT
11492 1214 151 22 Cable One
20115 1114 1081 574 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 417 1776 372 TDC Tele Danmark
3215 396 2756 106 France Telecom Transpac
8452 358 188 11 TEDATA
3301 332 1444 303 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 1693 235 67 Telecom Argentina Stet-France
8151 1518 2592 223 UniNet S.A. de C.V.
8167 665 593 43 TELESC - Telecomunicacoes de
11830 664 299 9 Instituto Costarricense de El
22047 563 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 421 85 48 ENTEL CHILE S.A.
16735 413 92 12 Companhia de Telecomunicacoes
11172 409 118 71 Servicios Alestra S.A de C.V
10620 380 101 75 TVCABLE BOGOTA
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 496 64 28 LINKdotNET AS number
20858 402 34 3 EgyNet
3741 267 856 221 The Internet Solution
2018 223 213 131 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 118 539 70 Telkom SA Ltd
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
4538 3299 3214 44 China Education and Research
6389 3200 3358 208 bellsouth.net, inc.
6298 1981 319 726 Cox Communicatons
4755 1707 578 91 Videsh Sanchar Nigam Ltd. Aut
7303 1693 235 67 Telecom Argentina Stet-France
1785 1648 710 156 AppliedTheory Corporation
2386 1557 692 899 AT&T Data Communications Serv
8151 1518 2592 223 UniNet S.A. de C.V.
4323 1495 1073 376 Time Warner Telecom
3549 1450 539 213 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
6389 3200 2992 bellsouth.net, inc.
7303 1693 1626 Telecom Argentina Stet-France
4755 1707 1616 Videsh Sanchar Nigam Ltd. Aut
1785 1648 1492 AppliedTheory Corporation
8151 1518 1295 UniNet S.A. de C.V.
6298 1981 1255 Cox Communicatons
3549 1450 1237 Global Crossing
17488 1308 1211 Hathway IP Over Cable Interne
11492 1214 1192 Cable One
4323 1495 1119 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
24.51.159.0/24 7843 Adelphia Corp.
24.53.86.0/24 7843 Adelphia Corp.
24.54.224.0/19 20001 HoldCo LLC - Road Runner
24.55.0.0/18 20001 HoldCo LLC - Road Runner
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
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 /14:538 /15:1069 /16:10133 /17:4427 /18:7649
/19:16034 /20:19072 /21:18473 /22:23831 /23:24698 /24:142763
/25:872 /26:1106 /27:384 /28:734 /29:839 /30:239
/31:0 /32:225
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2037 3200 bellsouth.net, inc.
6298 1954 1981 Cox Communicatons
4538 1759 3299 China Education and Research
1803 1241 1263 SPRINT
2386 1235 1557 AT&T Data Communications Serv
7303 1196 1693 Telecom Argentina Stet-France
11492 1195 1214 Cable One
1785 1117 1648 AppliedTheory Corporation
17488 1115 1308 Hathway IP Over Cable Interne
3549 1087 1450 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:129 12:2139 13:2 14:1 15:22
16:3 17:5 18:13 20:37 24:1084 32:197
38:497 40:92 41:695 43:1 44:2 47:12
50:1 52:3 55:3 56:3 57:47 58:560
59:584 60:453 61:995 62:1252 63:1982 64:3407
65:2353 66:3455 67:1224 68:775 69:2301 70:856
71:134 72:2007 73:7 74:1115 75:166 76:324
77:768 78:820 79:224 80:972 81:869 82:591
83:383 84:568 85:979 86:399 87:729 88:340
89:1317 90:40 91:1415 92:243 93:825 94:79
96:57 97:60 98:312 99:3 114:96 115:33
116:966 117:352 118:199 119:479 120:75 121:597
122:821 123:384 124:842 125:1236 128:354 129:205
130:135 131:408 132:70 133:9 134:184 135:33
136:223 137:94 138:141 139:100 140:505 141:103
142:406 143:311 144:407 145:51 146:385 147:156
148:517 149:202 150:129 151:183 152:147 153:143
154:10 155:280 156:171 157:289 158:166 159:301
160:272 161:131 162:265 163:156 164:518 165:462
166:379 167:333 168:628 169:141 170:448 171:33
172:10 173:16 188:1 189:524 190:2303 192:5814
193:4234 194:3284 195:2613 196:1018 198:3732 199:3311
200:5922 201:1700 202:8212 203:8088 204:3959 205:2155
206:2448 207:2773 208:3649 209:3408 210:2992 211:1244
212:1444 213:1637 214:175 215:50 216:4348 217:1215
218:403 219:517 220:1065 221:455 222:441
End of report