Routing Table Report 00:00 GMT Sun 17 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: 272964
Prefixes after maximum aggregation: 130953
Deaggregation factor: 2.08
Unique aggregates announced to Internet: 129189
Total ASes present in the Internet Routing Table: 28985
Prefixes per ASN: 9.42
Origin-only ASes present in the Internet Routing Table: 25133
Origin ASes announcing only one prefix: 12201
Transit ASes present in the Internet Routing Table: 3852
Transit-only ASes present in the Internet Routing Table: 91
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 30
Max AS path prepend of ASN (17957) 20
Prefixes from unregistered ASNs in the Routing Table: 625
Unregistered ASNs in the Routing Table: 242
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: 825
Number of addresses announced to Internet: 1910164380
Equivalent to 113 /8s, 218 /16s and 203 /24s
Percentage of available address space announced: 51.5
Percentage of allocated address space announced: 62.6
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: 135180
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 64119
Total APNIC prefixes after maximum aggregation: 22643
APNIC Deaggregation factor: 2.83
Prefixes being announced from the APNIC address blocks: 61211
Unique aggregates announced from the APNIC address blocks: 25858
APNIC Region origin ASes present in the Internet Routing Table: 3333
APNIC Prefixes per ASN: 18.37
APNIC Region origin ASes announcing only one prefix: 892
APNIC Region transit ASes present in the Internet Routing Table: 535
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 371837344
Equivalent to 22 /8s, 41 /16s and 201 /24s
Percentage of available APNIC address space announced: 79.2
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: 122981
Total ARIN prefixes after maximum aggregation: 66488
ARIN Deaggregation factor: 1.85
Prefixes being announced from the ARIN address blocks: 91383
Unique aggregates announced from the ARIN address blocks: 34858
ARIN Region origin ASes present in the Internet Routing Table: 12382
ARIN Prefixes per ASN: 7.38
ARIN Region origin ASes announcing only one prefix: 4760
ARIN Region transit ASes present in the Internet Routing Table: 1224
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 362102529
Equivalent to 21 /8s, 149 /16s and 63 /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: 57979
Total RIPE prefixes after maximum aggregation: 34848
RIPE Deaggregation factor: 1.66
Prefixes being announced from the RIPE address blocks: 53395
Unique aggregates announced from the RIPE address blocks: 35192
RIPE Region origin ASes present in the Internet Routing Table: 11738
RIPE Prefixes per ASN: 4.55
RIPE Region origin ASes announcing only one prefix: 6155
RIPE Region transit ASes present in the Internet Routing Table: 1814
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 369091296
Equivalent to 21 /8s, 255 /16s and 226 /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: 23269
Total LACNIC prefixes after maximum aggregation: 5261
LACNIC Deaggregation factor: 4.42
Prefixes being announced from the LACNIC address blocks: 21529
Unique aggregates announced from the LACNIC address blocks: 10719
LACNIC Region origin ASes present in the Internet Routing Table: 980
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 315
LACNIC Region transit ASes present in the Internet Routing Table: 166
Average LACNIC Region AS path length visible: 6.3
Max LACNIC Region AS path length visible: 30
Number of LACNIC addresses announced to Internet: 54389268
Equivalent to 3 /8s, 61 /16s and 234 /24s
Percentage of available LACNIC address space announced: 54.0
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: 3991
Total AfriNIC prefixes after maximum aggregation: 1234
AfriNIC Deaggregation factor: 3.23
Prefixes being announced from the AfriNIC address blocks: 4336
Unique aggregates announced from the AfriNIC address blocks: 1914
AfriNIC Region origin ASes present in the Internet Routing Table: 250
AfriNIC Prefixes per ASN: 17.34
AfriNIC Region origin ASes announcing only one prefix: 79
AfriNIC Region transit ASes present in the Internet Routing Table: 49
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC addresses announced to Internet: 12728576
Equivalent to 0 /8s, 194 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 37.9
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 3294 3134 41 China Education and Research
4755 1698 578 91 Videsh Sanchar Nigam Ltd. Aut
17488 1302 89 99 Hathway IP Over Cable Interne
9583 1167 92 495 Sify Limited
4134 849 13523 339 CHINANET-BACKBONE
4766 829 6390 352 Korea Telecom (KIX)
23577 826 33 731 Korea Telecom (ATM-MPLS)
4780 720 353 61 Digital United Inc.
18101 692 167 33 Reliance Infocom Ltd Internet
9498 676 291 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 3198 3358 208 bellsouth.net, inc.
6298 2004 323 731 Cox Communicatons
1785 1646 710 156 AppliedTheory Corporation
2386 1559 692 898 AT&T Data Communications Serv
4323 1492 1078 379 Time Warner Telecom
3549 1444 539 211 Global Crossing
7018 1416 9903 983 AT&T WorldNet Services
1803 1262 7 1000 SPRINT
11492 1214 151 22 Cable One
20115 1113 1080 573 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 395 2756 106 France Telecom Transpac
8452 357 188 11 TEDATA
3301 332 1444 303 TeliaNet Sweden
3320 322 7047 270 Deutsche Telekom AG
8866 317 77 21 Bulgarian Telecommunication C
5462 307 666 27 Telewest Broadband
8551 289 270 39 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 1700 236 65 Telecom Argentina Stet-France
8151 1514 2592 224 UniNet S.A. de C.V.
8167 666 593 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 409 118 71 Servicios Alestra S.A de C.V
16735 409 92 12 Companhia de Telecomunicacoes
10620 371 99 90 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 64 27 LINKdotNET AS number
20858 402 34 3 EgyNet
3741 266 855 224 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 116 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 3294 3134 41 China Education and Research
6389 3198 3358 208 bellsouth.net, inc.
6298 2004 323 731 Cox Communicatons
7303 1700 236 65 Telecom Argentina Stet-France
4755 1698 578 91 Videsh Sanchar Nigam Ltd. Aut
1785 1646 710 156 AppliedTheory Corporation
2386 1559 692 898 AT&T Data Communications Serv
8151 1514 2592 224 UniNet S.A. de C.V.
4323 1492 1078 379 Time Warner Telecom
3549 1444 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
6389 3198 2990 bellsouth.net, inc.
7303 1700 1635 Telecom Argentina Stet-France
4755 1698 1607 Videsh Sanchar Nigam Ltd. Aut
1785 1646 1490 AppliedTheory Corporation
8151 1514 1290 UniNet S.A. de C.V.
6298 2004 1273 Cox Communicatons
3549 1444 1233 Global Crossing
17488 1302 1203 Hathway IP Over Cable Interne
11492 1214 1192 Cable One
4323 1492 1113 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 /14:534 /15:1064 /16:10121 /17:4405 /18:7603
/19:16005 /20:19018 /21:18380 /22:23748 /23:24593 /24:142552
/25:878 /26:1127 /27:387 /28:734 /29:838 /30:217
/31:0 /32:224
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2035 3198 bellsouth.net, inc.
6298 1977 2004 Cox Communicatons
4538 1759 3294 China Education and Research
1803 1240 1262 SPRINT
2386 1238 1559 AT&T Data Communications Serv
7303 1203 1700 Telecom Argentina Stet-France
11492 1195 1214 Cable One
1785 1114 1646 AppliedTheory Corporation
17488 1109 1302 Hathway IP Over Cable Interne
3549 1082 1444 Global Crossing
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:134 12:2125 13:2 14:2 15:22
16:3 17:5 18:13 20:37 24:1084 32:197
38:483 40:92 41:691 43:1 44:2 47:12
50:1 52:3 55:3 56:3 57:48 58:558
59:581 60:453 61:990 62:1244 63:1962 64:3394
65:2361 66:3449 67:1222 68:766 69:2283 70:864
71:132 72:2037 73:7 74:1118 75:166 76:318
77:757 78:820 79:225 80:953 81:868 82:624
83:382 84:575 85:984 86:396 87:725 88:339
89:1314 90:39 91:1396 92:232 93:807 94:107
96:54 97:51 98:307 99:3 114:86 115:41
116:964 117:346 118:199 119:461 120:75 121:605
122:819 123:379 124:894 125:1230 128:351 129:205
130:135 131:407 132:70 133:9 134:188 135:33
136:217 137:94 138:145 139:101 140:502 141:103
142:406 143:338 144:402 145:51 146:384 147:156
148:516 149:202 150:129 151:183 152:148 153:143
154:10 155:278 156:173 157:290 158:166 159:294
160:273 161:119 162:265 163:155 164:515 165:460
166:379 167:331 168:628 169:139 170:451 171:33
172:10 173:13 188:1 189:500 190:2321 192:5807
193:4225 194:3283 195:2608 196:1009 198:3732 199:3313
200:5949 201:1704 202:8186 203:8086 204:3960 205:2150
206:2449 207:2772 208:3635 209:3391 210:2996 211:1243
212:1442 213:1595 214:179 215:50 216:4350 217:1200
218:404 219:517 220:1066 221:456 222:440
End of report