Routing Table Report 00:00 GMT Sat 30 May, 2009
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: 291017
Prefixes after maximum aggregation: 136598
Deaggregation factor: 2.13
Unique aggregates announced to Internet: 142168
Total ASes present in the Internet Routing Table: 31387
Prefixes per ASN: 9.27
Origin-only ASes present in the Internet Routing Table: 27260
Origin ASes announcing only one prefix: 13326
Transit ASes present in the Internet Routing Table: 4127
Transit-only ASes present in the Internet Routing Table: 97
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 28
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 587
Unregistered ASNs in the Routing Table: 175
Number of 32-bit ASNs allocated by the RIRs: 164
Prefixes from 32-bit ASNs in the Routing Table: 44
Special use prefixes present in the Routing Table: 2
Prefixes being announced from unallocated address space: 856
Number of addresses announced to Internet: 2559601643
Equivalent to 152 /8s, 144 /16s and 107 /24s
Percentage of available address space announced: 69.1
Percentage of allocated address space announced: 79.9
Percentage of available address space allocated: 86.4
Percentage of address space in use by end-sites: 77.2
Total number of prefixes smaller than registry allocations: 144077
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 67179
Total APNIC prefixes after maximum aggregation: 23843
APNIC Deaggregation factor: 2.82
Prefixes being announced from the APNIC address blocks: 66587
Unique aggregates announced from the APNIC address blocks: 30721
APNIC Region origin ASes present in the Internet Routing Table: 3633
APNIC Prefixes per ASN: 18.33
APNIC Region origin ASes announcing only one prefix: 1009
APNIC Region transit ASes present in the Internet Routing Table: 562
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 452351648
Equivalent to 26 /8s, 246 /16s and 86 /24s
Percentage of available APNIC address space announced: 84.3
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,
180/8, 183/8, 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: 124701
Total ARIN prefixes after maximum aggregation: 66132
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 125183
Unique aggregates announced from the ARIN address blocks: 51636
ARIN Region origin ASes present in the Internet Routing Table: 13029
ARIN Prefixes per ASN: 9.61
ARIN Region origin ASes announcing only one prefix: 5011
ARIN Region transit ASes present in the Internet Routing Table: 1291
Average ARIN Region AS path length visible: 3.2
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 1017335509
Equivalent to 60 /8s, 163 /16s and 78 /24s
Percentage of available ARIN address space announced: 195.6
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
53248-55295
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, 108/8, 173/8,
174/8, 184/8, 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: 66503
Total RIPE prefixes after maximum aggregation: 38843
RIPE Deaggregation factor: 1.71
Prefixes being announced from the RIPE address blocks: 65952
Unique aggregates announced from the RIPE address blocks: 43536
RIPE Region origin ASes present in the Internet Routing Table: 13074
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 6849
RIPE Region transit ASes present in the Internet Routing Table: 1973
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 481082605
Equivalent to 28 /8s, 172 /16s and 188 /24s
Percentage of available RIPE address space announced: 102.4
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, 47104-52223
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, 109/8,
178/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 25938
Total LACNIC prefixes after maximum aggregation: 5981
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 25815
Unique aggregates announced from the LACNIC address blocks: 13131
LACNIC Region origin ASes present in the Internet Routing Table: 1124
LACNIC Prefixes per ASN: 22.97
LACNIC Region origin ASes announcing only one prefix: 364
LACNIC Region transit ASes present in the Internet Routing Table: 186
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 28
Number of LACNIC addresses announced to Internet: 71575944
Equivalent to 4 /8s, 68 /16s and 41 /24s
Percentage of available LACNIC address space announced: 71.1
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247
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: 6250
Total AfriNIC prefixes after maximum aggregation: 1454
AfriNIC Deaggregation factor: 4.30
Prefixes being announced from the AfriNIC address blocks: 6611
Unique aggregates announced from the AfriNIC address blocks: 2461
AfriNIC Region origin ASes present in the Internet Routing Table: 300
AfriNIC Prefixes per ASN: 22.04
AfriNIC Region origin ASes announcing only one prefix: 93
AfriNIC Region transit ASes present in the Internet Routing Table: 64
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 19382016
Equivalent to 1 /8s, 39 /16s and 191 /24s
Percentage of available AfriNIC address space announced: 57.8
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
17488 1588 130 99 Hathway IP Over Cable Interne
4766 1543 6930 402 Korea Telecom (KIX)
4755 1204 418 174 Videsh Sanchar Nigam Ltd. Aut
9583 1083 86 541 Sify Limited
4134 874 16789 375 CHINANET-BACKBONE
7545 788 198 102 TPG Internet Pty Ltd
18101 747 216 29 Reliance Infocom Ltd Internet
24560 693 230 174 Bharti Airtel Ltd.
9829 669 561 15 BSNL National Internet Backbo
9498 635 231 51 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 4289 3646 320 bellsouth.net, inc.
20115 2063 1442 715 Charter Communications
4323 1858 1035 375 Time Warner Telecom
1785 1699 717 139 AppliedTheory Corporation
7018 1500 9990 1028 AT&T WorldNet Services
6478 1398 310 442 AT&T Worldnet Services
2386 1270 684 922 AT&T Data Communications Serv
3356 1219 10981 456 Level 3 Communications, LLC
11492 1109 208 12 Cable One
18566 1062 296 10 Covad 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
702 636 1864 346 UUNET - Commercial IP service
30890 526 87 196 Evolva Telecom
35228 476 208 6 Avatar Broadband Limited
3292 472 1894 396 TDC Tele Danmark
12479 449 578 6 Uni2 Autonomous System
8866 386 110 26 Bulgarian Telecommunication C
3301 369 1668 304 TeliaNet Sweden
35805 348 24 4 United Telecom AS
3320 344 7066 295 Deutsche Telekom AG
3215 343 3041 108 France Telecom Transpac
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 1951 295 80 Telecom Argentina Stet-France
8151 1451 2862 235 Uninet S.A. de C.V.
10620 929 207 108 TVCABLE BOGOTA
22047 579 302 14 Types of queries are: POCs, o
11830 486 292 54 Instituto Costarricense de El
28573 478 562 35 Types of queries are: POCs, o
6471 443 96 32 ENTEL CHILE S.A.
11172 440 102 70 Alestra
7738 414 794 28 Telecomunicacoes da Bahia S.A
16735 404 108 10 Companhia de Telecomunicacoes
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
8452 1203 188 7 TEDATA
24863 880 81 41 LINKdotNET AS number
20858 326 34 5 EgyNet
3741 278 860 238 The Internet Solution
2018 245 215 143 TENET-1
6713 160 151 12 Itissalat Al-MAGHRIB
33783 152 10 8 EEPAD TISP TELECOM & INTERNET
29571 139 15 8 Ci Telecom Autonomous system
5536 123 8 9 Internet Egypt Network
33776 116 6 7 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 4289 3646 320 bellsouth.net, inc.
20115 2063 1442 715 Charter Communications
7303 1951 295 80 Telecom Argentina Stet-France
4323 1858 1035 375 Time Warner Telecom
1785 1699 717 139 AppliedTheory Corporation
17488 1588 130 99 Hathway IP Over Cable Interne
4766 1543 6930 402 Korea Telecom (KIX)
7018 1500 9990 1028 AT&T WorldNet Services
8151 1451 2862 235 Uninet S.A. de C.V.
6478 1398 310 442 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 1951 1871 Telecom Argentina Stet-France
1785 1699 1560 AppliedTheory Corporation
17488 1588 1489 Hathway IP Over Cable Interne
4323 1858 1483 Time Warner Telecom
20115 2063 1348 Charter Communications
8151 1451 1216 Uninet S.A. de C.V.
8452 1203 1196 TEDATA
4766 1543 1141 Korea Telecom (KIX)
11492 1109 1097 Cable One
18566 1062 1052 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 7018 AT&T WorldNet Servic
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
10.29.248.71/32 286 KPNQwest Backbone AS
198.18.0.0/15 10026 IXNet Hong Kong Limited
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
1.0.0.0/8 10026 IXNet Hong Kong Limited
2.0.0.0/8 10026 IXNet Hong Kong Limited
5.0.0.0/8 10026 IXNet Hong Kong Limited
10.29.248.71/32 286 KPNQwest Backbone AS
14.0.0.0/8 10026 IXNet Hong Kong Limited
23.0.0.0/8 10026 IXNet Hong Kong Limited
27.0.0.0/8 10026 IXNet Hong Kong Limited
31.0.0.0/8 10026 IXNet Hong Kong Limited
36.0.0.0/8 10026 IXNet Hong Kong Limited
37.0.0.0/8 10026 IXNet Hong Kong Limited
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 /8:49 /9:10 /10:22 /11:59 /12:170
/13:350 /14:605 /15:1160 /16:10512 /17:4762 /18:8138
/19:16979 /20:20276 /21:20312 /22:26883 /23:26134 /24:153133
/25:197 /26:283 /27:217 /28:244 /29:248 /30:152
/31:1 /32:121
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2799 4289 bellsouth.net, inc.
7303 1466 1951 Telecom Argentina Stet-France
17488 1307 1588 Hathway IP Over Cable Interne
4766 1236 1543 Korea Telecom (KIX)
1785 1176 1699 AppliedTheory Corporation
8452 1172 1203 TEDATA
20115 1109 2063 Charter Communications
11492 1043 1109 Cable One
18566 1043 1062 Covad Communications
2386 977 1270 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:205 12:2229 13:10 15:19 16:3
17:4 20:35 24:1104 32:146 34:2 38:559
40:97 41:1990 43:1 44:2 47:22 52:4
55:2 56:3 57:37 58:586 59:637 60:459
61:1095 62:1135 63:2022 64:3726 65:2376 66:3675
67:1601 68:835 69:2631 70:533 71:150 72:1696
73:2 74:1546 75:177 76:308 77:860 78:565
79:343 80:978 81:824 82:566 83:431 84:648
85:1042 86:400 87:672 88:354 89:1438 90:60
91:2256 92:339 93:1081 94:1245 95:1183 96:137
97:221 98:242 99:20 109:1 110:126 112:129
113:110 114:270 115:291 116:1163 117:534 118:298
119:702 120:145 121:747 122:1029 123:683 124:979
125:1323 128:222 129:236 130:125 131:411 132:75
133:9 134:186 135:39 136:224 137:155 138:160
139:89 140:443 141:114 142:381 143:342 144:366
145:47 146:375 147:161 148:518 149:303 150:177
151:198 152:147 153:147 154:2 155:275 156:170
157:298 158:114 159:312 160:283 161:143 162:268
163:151 164:479 165:502 166:274 167:361 168:676
169:165 170:493 171:40 172:10 173:288 174:218
178:1 180:1 183:1 186:17 187:132 188:20
189:508 190:3045 192:5812 193:4319 194:3401 195:2785
196:1082 198:3639 199:3370 200:5517 201:1412 202:8031
203:8199 204:3834 205:2253 206:2467 207:2752 208:3905
209:3409 210:2680 211:1146 212:1525 213:1705 214:77
215:31 216:4693 217:1284 218:371 219:426 220:1221
221:476 222:302
End of report