Routing Table Report 00:00 GMT Thu 27 Nov, 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: 278087
Prefixes after maximum aggregation: 133433
Deaggregation factor: 2.08
Unique aggregates announced to Internet: 133381
Total ASes present in the Internet Routing Table: 29991
Prefixes per ASN: 9.27
Origin-only ASes present in the Internet Routing Table: 26001
Origin ASes announcing only one prefix: 12698
Transit ASes present in the Internet Routing Table: 3990
Transit-only ASes present in the Internet Routing Table: 98
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 25
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 537
Unregistered ASNs in the Routing Table: 199
Number of 32-bit ASNs allocated by the RIRs: 64
Prefixes from 32-bit ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 5
Prefixes being announced from unallocated address space: 197
Number of addresses announced to Internet: 1964811164
Equivalent to 117 /8s, 28 /16s and 163 /24s
Percentage of available address space announced: 53.0
Percentage of allocated address space announced: 63.3
Percentage of available address space allocated: 83.7
Percentage of address space in use by end-sites: 74.5
Total number of prefixes smaller than registry allocations: 138080
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 63077
Total APNIC prefixes after maximum aggregation: 23382
APNIC Deaggregation factor: 2.70
Prefixes being announced from the APNIC address blocks: 60022
Unique aggregates announced from the APNIC address blocks: 27113
APNIC Region origin ASes present in the Internet Routing Table: 3473
APNIC Prefixes per ASN: 17.28
APNIC Region origin ASes announcing only one prefix: 941
APNIC Region transit ASes present in the Internet Routing Table: 539
Average APNIC Region AS path length visible: 4.7
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 388563744
Equivalent to 23 /8s, 41 /16s and 3 /24s
Percentage of available APNIC address space announced: 77.2
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, 110/8, 111/8, 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: 124959
Total ARIN prefixes after maximum aggregation: 66409
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 93350
Unique aggregates announced from the ARIN address blocks: 34790
ARIN Region origin ASes present in the Internet Routing Table: 12671
ARIN Prefixes per ASN: 7.37
ARIN Region origin ASes announcing only one prefix: 4898
ARIN Region transit ASes present in the Internet Routing Table: 1254
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 402028289
Equivalent to 23 /8s, 246 /16s and 119 /24s
Percentage of available ARIN address space announced: 82.6
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: 61218
Total RIPE prefixes after maximum aggregation: 36315
RIPE Deaggregation factor: 1.69
Prefixes being announced from the RIPE address blocks: 57228
Unique aggregates announced from the RIPE address blocks: 37362
RIPE Region origin ASes present in the Internet Routing Table: 12253
RIPE Prefixes per ASN: 4.67
RIPE Region origin ASes announcing only one prefix: 6442
RIPE Region transit ASes present in the Internet Routing Table: 1908
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 379876071
Equivalent to 22 /8s, 164 /16s and 114 /24s
Percentage of available RIPE address space announced: 87.1
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, 47104-49151
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: 24144
Total LACNIC prefixes after maximum aggregation: 5549
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 22186
Unique aggregates announced from the LACNIC address blocks: 11413
LACNIC Region origin ASes present in the Internet Routing Table: 1039
LACNIC Prefixes per ASN: 21.35
LACNIC Region origin ASes announcing only one prefix: 332
LACNIC Region transit ASes present in the Internet Routing Table: 172
Average LACNIC Region AS path length visible: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 58247694
Equivalent to 3 /8s, 120 /16s and 202 /24s
Percentage of available LACNIC address space announced: 57.9
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: 4159
Total AfriNIC prefixes after maximum aggregation: 1349
AfriNIC Deaggregation factor: 3.08
Prefixes being announced from the AfriNIC address blocks: 4440
Unique aggregates announced from the AfriNIC address blocks: 2228
AfriNIC Region origin ASes present in the Internet Routing Table: 272
AfriNIC Prefixes per ASN: 16.32
AfriNIC Region origin ASes announcing only one prefix: 85
AfriNIC Region transit ASes present in the Internet Routing Table: 57
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 13035904
Equivalent to 0 /8s, 198 /16s and 233 /24s
Percentage of available AfriNIC address space announced: 25.9
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
17488 1439 100 113 Hathway IP Over Cable Interne
9583 1152 88 480 Sify Limited
4755 1115 434 164 Videsh Sanchar Nigam Ltd. Aut
4766 1081 6409 366 Korea Telecom (KIX)
4134 887 15536 371 CHINANET-BACKBONE
18101 785 168 31 Reliance Infocom Ltd Internet
23577 768 33 688 Korea Telecom (ATM-MPLS)
9498 692 295 51 BHARTI BT INTERNET LTD.
7545 648 152 83 TPG Internet Pty Ltd
24560 625 193 160 Bharti Airtel 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 4369 3419 338 bellsouth.net, inc.
6298 2159 333 635 Cox Communicatons
20115 1841 1460 737 Charter Communications
1785 1703 717 154 AppliedTheory Corporation
6478 1606 368 204 AT&T Worldnet Services
2386 1595 686 910 AT&T Data Communications Serv
4323 1591 1050 376 Time Warner Telecom
7018 1410 9910 967 AT&T WorldNet Services
1803 1329 7 1064 SPRINT
11492 1219 192 12 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 438 1765 382 TDC Tele Danmark
12479 370 578 6 Uni2 Autonomous System
30890 369 80 196 SC Kappa Invexim SRL
3301 338 1429 307 TeliaNet Sweden
29049 333 26 3 AzerSat LLC.
8866 330 109 22 Bulgarian Telecommunication C
3320 326 7063 274 Deutsche Telekom AG
3215 314 2776 97 France Telecom Transpac
8452 311 188 11 TEDATA
8551 303 286 37 Bezeq International
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 1754 244 74 Telecom Argentina Stet-France
8151 1349 2749 212 UniNet S.A. de C.V.
11830 664 299 9 Instituto Costarricense de El
22047 534 270 14 VTR PUNTO NET S.A.
10620 533 121 43 TVCABLE BOGOTA
16814 426 27 10 NSS, S.A.
6471 425 88 50 ENTEL CHILE S.A.
11172 400 86 70 Servicios Alestra S.A de C.V
16735 377 92 9 Companhia de Telecomunicacoes
7738 373 730 27 Telecomunicacoes da Bahia 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 513 72 46 LINKdotNET AS number
3741 269 857 226 The Internet Solution
20858 262 34 3 EgyNet
2018 238 215 140 Tertiary Education Network
33783 143 10 17 EEPAD TISP TELECOM & INTERNET
6713 137 135 11 Itissalat Al-MAGHRIB
29571 124 13 8 Ci Telecom Autonomous system
5536 120 8 17 Internet Egypt Network
5713 119 555 68 Telkom SA Ltd
33776 116 6 3 Starcomms Nigeria Limited
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 4369 3419 338 bellsouth.net, inc.
6298 2159 333 635 Cox Communicatons
20115 1841 1460 737 Charter Communications
7303 1754 244 74 Telecom Argentina Stet-France
1785 1703 717 154 AppliedTheory Corporation
6478 1606 368 204 AT&T Worldnet Services
2386 1595 686 910 AT&T Data Communications Serv
4323 1591 1050 376 Time Warner Telecom
17488 1439 100 113 Hathway IP Over Cable Interne
7018 1410 9910 967 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7303 1754 1680 Telecom Argentina Stet-France
1785 1703 1549 AppliedTheory Corporation
6298 2159 1524 Cox Communicatons
6478 1606 1402 AT&T Worldnet Services
17488 1439 1326 Hathway IP Over Cable Interne
4323 1591 1215 Time Warner Telecom
11492 1219 1207 Cable One
8151 1349 1137 UniNet S.A. de C.V.
20115 1841 1104 Charter Communications
18566 1059 1049 Covad Communications
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
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 3549 Global Crossing
25639 UNALLOCATED 12.41.169.0/24 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
10.29.248.65/32 286 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
24.75.116.0/22 10796 ServiceCo 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
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
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 /10:19 /11:56 /12:162
/13:316 /14:552 /15:1086 /16:10217 /17:4496 /18:7667
/19:16374 /20:19327 /21:19028 /22:24800 /23:25261 /24:145313
/25:653 /26:731 /27:378 /28:801 /29:400 /30:175
/31:0 /32:247
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2859 4369 bellsouth.net, inc.
6298 2133 2159 Cox Communicatons
1803 1308 1329 SPRINT
7303 1286 1754 Telecom Argentina Stet-France
2386 1275 1595 AT&T Data Communications Serv
17488 1229 1439 Hathway IP Over Cable Interne
11492 1194 1219 Cable One
1785 1164 1703 AppliedTheory Corporation
6478 1106 1606 AT&T Worldnet Services
18566 1040 1059 Covad Communications
Complete listing at http://thyme.apnic.net/rviews/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:12 8:163 12:2201 13:2 15:21 16:3
17:5 20:36 24:1140 32:139 38:519 40:93
41:812 43:1 44:2 47:12 52:3 55:3
56:3 57:48 58:504 59:552 60:456 61:1064
62:1187 63:1940 64:3364 65:2433 66:3594 67:1367
68:852 69:2367 70:897 71:172 72:2101 73:7
74:1314 75:172 76:291 77:898 78:520 79:287
80:939 81:854 82:599 83:411 84:588 85:1055
86:507 87:668 88:352 89:1361 90:29 91:1720
92:318 93:1006 94:695 95:39 96:92 97:138
98:398 99:9 100:1 113:41 114:134 115:162
116:1058 117:411 118:297 119:554 120:106 121:651
122:892 123:459 124:847 125:1240 128:357 129:219
130:134 131:411 132:72 133:9 134:187 135:31
136:223 137:117 138:144 139:93 140:429 141:111
142:394 143:289 144:307 145:52 146:373 147:143
148:606 149:291 150:143 151:208 152:139 153:138
154:10 155:276 156:175 157:302 158:169 159:298
160:273 161:132 162:251 163:133 164:517 165:524
166:361 167:341 168:647 169:155 170:485 171:40
172:10 173:124 174:7 187:18 188:1 189:375
190:2684 192:5863 193:4232 194:3398 195:2698 196:1011
198:3716 199:3321 200:5864 201:1606 202:7828 203:7922
204:3920 205:2191 206:2313 207:2738 208:3785 209:3476
210:2564 211:1157 212:1550 213:1656 214:68 215:25
216:4433 217:1246 218:363 219:411 220:1087 221:447
222:308
End of report