Routing Table Report 00:00 GMT Wed 13 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: 272221
Prefixes after maximum aggregation: 130851
Deaggregation factor: 2.08
Unique aggregates announced to Internet: 128742
Total ASes present in the Internet Routing Table: 28956
Prefixes per ASN: 9.40
Origin-only ASes present in the Internet Routing Table: 25105
Origin ASes announcing only one prefix: 12208
Transit ASes present in the Internet Routing Table: 3851
Transit-only ASes present in the Internet Routing Table: 89
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 26
Max AS path prepend of ASN (17957) 20
Prefixes from unregistered ASNs in the Routing Table: 584
Unregistered ASNs in the Routing Table: 221
Number of 32-bit ASNs allocated by the RIRs: 57
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: 793
Number of addresses announced to Internet: 1908972092
Equivalent to 113 /8s, 200 /16s and 154 /24s
Percentage of available address space announced: 51.5
Percentage of allocated address space announced: 62.5
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: 134605
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64165
Total APNIC prefixes after maximum aggregation: 22667
APNIC Deaggregation factor: 2.83
Prefixes being announced from the APNIC address blocks: 61241
Unique aggregates announced from the APNIC address blocks: 25906
APNIC Region origin ASes present in the Internet Routing Table: 3325
APNIC Prefixes per ASN: 18.42
APNIC Region origin ASes announcing only one prefix: 884
APNIC Region transit ASes present in the Internet Routing Table: 537
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 370889888
Equivalent to 22 /8s, 27 /16s and 84 /24s
Percentage of available APNIC address space announced: 79.0
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: 122725
Total ARIN prefixes after maximum aggregation: 66387
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 91265
Unique aggregates announced from the ARIN address blocks: 34807
ARIN Region origin ASes present in the Internet Routing Table: 12367
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4768
ARIN Region transit ASes present in the Internet Routing Table: 1219
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 361793537
Equivalent to 21 /8s, 144 /16s and 136 /24s
Percentage of available ARIN address space announced: 74.4
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: 57857
Total RIPE prefixes after maximum aggregation: 34829
RIPE Deaggregation factor: 1.66
Prefixes being announced from the RIPE address blocks: 53271
Unique aggregates announced from the RIPE address blocks: 35082
RIPE Region origin ASes present in the Internet Routing Table: 11733
RIPE Prefixes per ASN: 4.54
RIPE Region origin ASes announcing only one prefix: 6158
RIPE Region transit ASes present in the Internet Routing Table: 1815
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 369058432
Equivalent to 21 /8s, 255 /16s and 98 /24s
Percentage of available RIPE address space announced: 84.6
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: 22863
Total LACNIC prefixes after maximum aggregation: 5256
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 21075
Unique aggregates announced from the LACNIC address blocks: 10395
LACNIC Region origin ASes present in the Internet Routing Table: 979
LACNIC Prefixes per ASN: 21.53
LACNIC Region origin ASes announcing only one prefix: 317
LACNIC Region transit ASes present in the Internet Routing Table: 166
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 26
Number of LACNIC addresses announced to Internet: 53844500
Equivalent to 3 /8s, 53 /16s and 154 /24s
Percentage of available LACNIC address space announced: 53.5
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: 4027
Total AfriNIC prefixes after maximum aggregation: 1230
AfriNIC Deaggregation factor: 3.27
Prefixes being announced from the AfriNIC address blocks: 4374
Unique aggregates announced from the AfriNIC address blocks: 1917
AfriNIC Region origin ASes present in the Internet Routing Table: 250
AfriNIC Prefixes per ASN: 17.50
AfriNIC Region origin ASes announcing only one prefix: 81
AfriNIC Region transit ASes present in the Internet Routing Table: 48
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC addresses announced to Internet: 12546816
Equivalent to 0 /8s, 191 /16s and 115 /24s
Percentage of available AfriNIC address space announced: 37.4
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 3293 3134 42 China Education and Research
4755 1696 386 89 Videsh Sanchar Nigam Ltd. Aut
17488 1300 88 97 Hathway IP Over Cable Interne
9583 1175 92 493 Sify Limited
4134 848 13516 355 CHINANET-BACKBONE
4766 829 6390 352 Korea Telecom (KIX)
23577 829 34 734 Korea Telecom (ATM-MPLS)
4780 717 353 61 Digital United Inc.
18101 692 167 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 207 bellsouth.net, inc.
6298 2027 309 694 Cox Communicatons
2386 1561 677 903 AT&T Data Communications Serv
4323 1488 1076 379 Time Warner Telecom
1785 1455 478 102 AppliedTheory Corporation
3549 1448 539 212 Global Crossing
7018 1415 9918 987 AT&T WorldNet Services
1803 1259 7 997 SPRINT
11492 1214 151 22 Cable One
20115 1113 1081 580 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 416 1776 371 TDC Tele Danmark
3215 395 2756 106 France Telecom Transpac
8452 355 188 11 TEDATA
3301 333 1460 304 TeliaNet Sweden
3320 322 7047 270 Deutsche Telekom AG
8866 316 77 21 Bulgarian Telecommunication C
5462 305 666 27 Telewest Broadband
8551 285 268 43 Bezeq International
1257 278 1131 203 SWIPnet Swedish IP Network
680 274 2047 264 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 1676 234 63 Telecom Argentina Stet-France
8151 1512 2590 224 UniNet S.A. de C.V.
8167 670 593 43 TELESC - Telecomunicacoes de
11830 664 299 9 Instituto Costarricense de El
22047 565 270 14 VTR PUNTO NET S.A.
16814 426 27 10 NSS, S.A.
6471 417 85 48 ENTEL CHILE S.A.
11172 410 118 72 Servicios Alestra S.A de C.V
16735 408 92 12 Companhia de Telecomunicacoes
10620 382 101 85 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 495 63 28 LINKdotNET AS number
20858 402 34 3 EgyNet
3741 268 855 224 The Internet Solution
2018 211 213 130 Tertiary Education Network
6713 144 135 11 Itissalat Al-MAGHRIB
33783 136 10 13 EEPAD TISP TELECOM & INTERNET
5713 129 540 74 Telkom SA Ltd
5536 120 8 17 Internet Egypt Network
33776 114 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 3293 3134 42 China Education and Research
6389 3200 3358 207 bellsouth.net, inc.
6298 2027 309 694 Cox Communicatons
4755 1696 386 89 Videsh Sanchar Nigam Ltd. Aut
7303 1676 234 63 Telecom Argentina Stet-France
2386 1561 677 903 AT&T Data Communications Serv
8151 1512 2590 224 UniNet S.A. de C.V.
4323 1488 1076 379 Time Warner Telecom
1785 1455 478 102 AppliedTheory Corporation
3549 1448 539 212 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 2993 bellsouth.net, inc.
7303 1676 1613 Telecom Argentina Stet-France
4755 1696 1607 Videsh Sanchar Nigam Ltd. Aut
1785 1455 1353 AppliedTheory Corporation
6298 2027 1333 Cox Communicatons
8151 1512 1288 UniNet S.A. de C.V.
3549 1448 1236 Global Crossing
17488 1300 1203 Hathway IP Over Cable Interne
11492 1214 1192 Cable One
4323 1488 1109 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
27220 UNALLOCATED 12.35.204.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 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
24.48.0.0/13 19548 Adelphia Business Solutions
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
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 /14:534 /15:1063 /16:10122 /17:4398 /18:7597
/19:15959 /20:18963 /21:18331 /22:23752 /23:24504 /24:142064
/25:875 /26:1125 /27:385 /28:732 /29:840 /30:217
/31:0 /32:224
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2036 3200 bellsouth.net, inc.
6298 2001 2027 Cox Communicatons
4538 1758 3293 China Education and Research
1803 1237 1259 SPRINT
2386 1236 1561 AT&T Data Communications Serv
11492 1195 1214 Cable One
7303 1185 1676 Telecom Argentina Stet-France
17488 1108 1300 Hathway IP Over Cable Interne
3549 1087 1448 Global Crossing
1785 1068 1455 AppliedTheory Corporation
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:131 12:2118 13:2 14:2 15:22
16:3 17:5 18:13 20:37 24:1090 32:197
38:479 40:92 41:690 43:1 44:2 47:12
50:1 52:3 55:3 56:3 57:47 58:558
59:585 60:457 61:1003 62:1240 63:1964 64:3392
65:2359 66:3457 67:1219 68:769 69:2288 70:864
71:117 72:2051 73:7 74:1095 75:157 76:317
77:755 78:752 79:214 80:976 81:874 82:624
83:383 84:569 85:981 86:398 87:691 88:340
89:1307 90:39 91:1416 92:249 93:793 94:101
96:53 97:45 98:311 99:3 114:89 115:33
116:955 117:344 118:197 119:453 120:74 121:603
122:815 123:379 124:899 125:1222 128:360 129:202
130:135 131:410 132:67 133:9 134:187 135:33
136:223 137:94 138:145 139:95 140:500 141:103
142:404 143:338 144:399 145:51 146:383 147:156
148:516 149:201 150:129 151:181 152:146 153:143
154:10 155:277 156:172 157:287 158:186 159:294
160:273 161:120 162:216 163:155 164:517 165:461
166:334 167:334 168:627 169:139 170:452 171:32
172:10 188:1 189:505 190:2166 192:5813 193:4225
194:3286 195:2605 196:1025 198:3739 199:3321 200:5876
201:1607 202:8227 203:8077 204:3968 205:2142 206:2447
207:2777 208:3634 209:3380 210:2969 211:1241 212:1441
213:1624 214:172 215:50 216:4347 217:1215 218:403
219:515 220:1067 221:456 222:440
End of report