Routing Table Report 00:00 GMT Sat 07 Nov, 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: 307613
Prefixes after maximum aggregation: 142283
Deaggregation factor: 2.16
Unique aggregates announced to Internet: 149628
Total ASes present in the Internet Routing Table: 32651
Prefixes per ASN: 9.42
Origin-only ASes present in the Internet Routing Table: 28323
Origin ASes announcing only one prefix: 13785
Transit ASes present in the Internet Routing Table: 4328
Transit-only ASes present in the Internet Routing Table: 99
Average AS path length visible in the Internet Routing Table: 5.1
Max AS path length visible: 32
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 698
Unregistered ASNs in the Routing Table: 159
Number of 32-bit ASNs allocated by the RIRs: 312
Prefixes from 32-bit ASNs in the Routing Table: 259
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 206
Number of addresses announced to Internet: 2132259786
Equivalent to 127 /8s, 23 /16s and 179 /24s
Percentage of available address space announced: 57.5
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 79.8
Total number of prefixes smaller than registry allocations: 148682
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 73467
Total APNIC prefixes after maximum aggregation: 25512
APNIC Deaggregation factor: 2.88
Prefixes being announced from the APNIC address blocks: 69863
Unique aggregates announced from the APNIC address blocks: 30342
APNIC Region origin ASes present in the Internet Routing Table: 3848
APNIC Prefixes per ASN: 18.16
APNIC Region origin ASes announcing only one prefix: 1057
APNIC Region transit ASes present in the Internet Routing Table: 586
Average APNIC Region AS path length visible: 5.6
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 470594304
Equivalent to 28 /8s, 12 /16s and 179 /24s
Percentage of available APNIC address space announced: 80.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 43/8, 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, 175/8, 180/8, 182/8, 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: 129156
Total ARIN prefixes after maximum aggregation: 67561
ARIN Deaggregation factor: 1.91
Prefixes being announced from the ARIN address blocks: 103267
Unique aggregates announced from the ARIN address blocks: 38820
ARIN Region origin ASes present in the Internet Routing Table: 13348
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5160
ARIN Region transit ASes present in the Internet Routing Table: 1347
Average ARIN Region AS path length visible: 4.7
Max ARIN Region AS path length visible: 26
Number of ARIN addresses announced to Internet: 714264577
Equivalent to 42 /8s, 146 /16s and 208 /24s
Percentage of available ARIN address space announced: 62.6
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, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 24/8, 26/8, 28/8, 29/8,
30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8,
44/8, 45/8, 47/8, 48/8, 52/8, 54/8, 55/8,
56/8, 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, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 71612
Total RIPE prefixes after maximum aggregation: 40952
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 64877
Unique aggregates announced from the RIPE address blocks: 42267
RIPE Region origin ASes present in the Internet Routing Table: 13731
RIPE Prefixes per ASN: 4.72
RIPE Region origin ASes announcing only one prefix: 7090
RIPE Region transit ASes present in the Internet Routing Table: 2074
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 403374484
Equivalent to 24 /8s, 11 /16s and 1 /24s
Percentage of available RIPE address space announced: 75.1
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, 47104-52223, 196608-197631
RIPE Address Blocks 2/8, 25/8, 46/8, 51/8, 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: 26806
Total LACNIC prefixes after maximum aggregation: 6397
LACNIC Deaggregation factor: 4.19
Prefixes being announced from the LACNIC address blocks: 25120
Unique aggregates announced from the LACNIC address blocks: 13490
LACNIC Region origin ASes present in the Internet Routing Table: 1207
LACNIC Prefixes per ASN: 20.81
LACNIC Region origin ASes announcing only one prefix: 378
LACNIC Region transit ASes present in the Internet Routing Table: 204
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 32
Number of LACNIC addresses announced to Internet: 68140320
Equivalent to 4 /8s, 15 /16s and 189 /24s
Percentage of available LACNIC address space announced: 67.7
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 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: 6065
Total AfriNIC prefixes after maximum aggregation: 1562
AfriNIC Deaggregation factor: 3.88
Prefixes being announced from the AfriNIC address blocks: 4430
Unique aggregates announced from the AfriNIC address blocks: 1577
AfriNIC Region origin ASes present in the Internet Routing Table: 331
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 100
AfriNIC Region transit ASes present in the Internet Routing Table: 65
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12887552
Equivalent to 0 /8s, 196 /16s and 166 /24s
Percentage of available AfriNIC address space announced: 38.4
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1599 7505 450 Korea Telecom (KIX)
17488 1360 140 125 Hathway IP Over Cable Interne
4755 1271 293 147 Videsh Sanchar Nigam Ltd. Aut
9583 1096 86 530 Sify Limited
18101 972 204 33 Reliance Infocom Ltd Internet
4134 952 19185 393 CHINANET-BACKBONE
7545 902 199 100 TPG Internet Pty Ltd
9829 852 664 24 BSNL National Internet Backbo
17974 822 252 104 PT TELEKOMUNIKASI INDONESIA
23577 799 30 668 KRNIC
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 4252 3883 313 bellsouth.net, inc.
4323 3724 1054 399 Time Warner Telecom
20115 2000 1484 661 Charter Communications
1785 1785 715 140 AppliedTheory Corporation
7018 1578 5829 1043 AT&T WorldNet Services
6478 1321 270 433 AT&T Worldnet Services
2386 1301 622 947 AT&T Data Communications Serv
3356 1225 10964 438 Level 3 Communications, LLC
11492 1137 206 13 Cable One
22773 1101 2600 66 Cox Communications, Inc.
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
30890 515 98 209 Evolva Telecom
3292 449 1906 392 TDC Tele Danmark
9116 445 296 30 Goldenlines main autonomous s
702 417 1822 336 UUNET - Commercial IP service
9198 397 138 12 Kazakhtelecom Corporate Sales
35805 384 40 5 United Telecom AS
3301 377 1412 305 TeliaNet Sweden
8866 364 110 23 Bulgarian Telecommunication C
8997 357 152 8 SPBNIT-RU Autonomous System
3320 354 7067 302 Deutsche Telekom AG
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
8151 1557 2898 234 Uninet S.A. de C.V.
10620 1032 228 102 TVCABLE BOGOTA
28573 978 661 92 Types of queries are: POCs, o
7303 662 349 96 Telecom Argentina Stet-France
22047 546 302 14 Types of queries are: POCs, o
11830 476 310 61 Instituto Costarricense de El
7738 452 862 30 Telecomunicacoes da Bahia S.A
11172 445 99 71 Alestra
14117 437 29 11 Telefonica del Sur S.A.
6471 422 96 31 ENTEL CHILE 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
8452 1042 188 7 TEDATA
24863 940 98 71 LINKdotNET AS number
3741 274 857 234 The Internet Solution
2018 194 188 117 TENET-1
6713 176 167 12 Itissalat Al-MAGHRIB
29571 145 15 8 Ci Telecom Autonomous system
33776 124 7 11 Starcomms Nigeria Limited
5536 122 8 13 Internet Egypt Network
5713 117 508 67 Telkom SA Ltd
20858 109 34 6 EgyNet
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 4252 3883 313 bellsouth.net, inc.
4323 3724 1054 399 Time Warner Telecom
20115 2000 1484 661 Charter Communications
1785 1785 715 140 AppliedTheory Corporation
4766 1599 7505 450 Korea Telecom (KIX)
7018 1578 5829 1043 AT&T WorldNet Services
8151 1557 2898 234 Uninet S.A. de C.V.
17488 1360 140 125 Hathway IP Over Cable Interne
6478 1321 270 433 AT&T Worldnet Services
2386 1301 622 947 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3724 3325 Time Warner Telecom
1785 1785 1645 AppliedTheory Corporation
20115 2000 1339 Charter Communications
8151 1557 1323 Uninet S.A. de C.V.
17488 1360 1235 Hathway IP Over Cable Interne
4766 1599 1149 Korea Telecom (KIX)
4755 1271 1124 Videsh Sanchar Nigam Ltd. Aut
11492 1137 1124 Cable One
18566 1062 1052 Covad Communications
22773 1101 1035 Cox Communications, Inc.
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
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
2.0.0.0/16 12654 RIPE NCC RIS Project
2.1.0.0/21 12654 RIPE NCC RIS Project
2.1.24.0/24 12654 RIPE NCC RIS Project
41.64.0.0/15 15475 Nile Online
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 26452 Local Communications Networks
46.0.0.0/16 12654 RIPE NCC RIS Project
46.1.0.0/21 12654 RIPE NCC RIS Project
46.1.24.0/24 12654 RIPE NCC RIS Project
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 /8:20 /9:10 /10:25 /11:65 /12:180
/13:364 /14:639 /15:1220 /16:10759 /17:5032 /18:8637
/19:17998 /20:21525 /21:21625 /22:27994 /23:27876 /24:158989
/25:829 /26:1072 /27:490 /28:520 /29:821 /30:600
/31:3 /32:320
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2778 4252 bellsouth.net, inc.
4323 2351 3724 Time Warner Telecom
4766 1265 1599 Korea Telecom (KIX)
1785 1249 1785 AppliedTheory Corporation
17488 1136 1360 Hathway IP Over Cable Interne
11492 1061 1137 Cable One
18566 1043 1062 Covad Communications
20115 1006 2000 Charter Communications
9583 948 1096 Sify Limited
7018 947 1578 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:233 12:2145 13:8 15:22
16:3 17:5 20:36 24:1275 32:149 34:2
38:608 40:99 41:1811 43:1 44:2 46:1
47:21 52:6 55:2 56:2 57:37 58:624
59:612 60:442 61:991 62:989 63:2009 64:3682
65:2368 66:4138 67:1766 68:1010 69:2795 70:586
71:164 72:1745 73:2 74:1986 75:188 76:362
77:869 78:599 79:382 80:956 81:819 82:518
83:446 84:550 85:1020 86:388 87:709 88:430
89:1531 90:52 91:2667 92:426 93:1182 94:1270
95:815 96:191 97:274 98:390 99:31 109:114
110:265 111:454 112:145 113:162 114:280 115:420
116:1012 117:589 118:345 119:787 120:127 121:710
122:1302 123:781 124:1054 125:1360 128:222 129:219
130:129 131:426 132:76 133:16 134:187 135:43
136:232 137:167 138:179 139:94 140:439 141:122
142:391 143:346 144:360 145:50 146:393 147:162
148:551 149:200 150:150 151:172 152:213 153:159
154:2 155:273 156:168 157:313 158:93 159:358
160:293 161:173 162:279 163:158 164:278 165:466
166:487 167:392 168:751 169:162 170:582 171:42
172:1 173:387 174:393 175:1 178:1 180:165
182:1 184:1 186:160 187:207 188:1260 189:670
190:3206 192:5778 193:4304 194:3367 195:2848 196:1163
198:3575 199:3357 200:5227 201:1400 202:8058 203:8238
204:3920 205:2155 206:2408 207:2999 208:3983 209:3443
210:2548 211:1175 212:1719 213:1670 214:177 215:40
216:4470 217:1339 218:476 219:468 220:1141 221:455
222:303
End of report