Routing Table Report 00:00 GMT Fri 11 Dec, 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: 311387
Prefixes after maximum aggregation: 143026
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 150687
Total ASes present in the Internet Routing Table: 32933
Prefixes per ASN: 9.46
Origin-only ASes present in the Internet Routing Table: 28511
Origin ASes announcing only one prefix: 13911
Transit ASes present in the Internet Routing Table: 4422
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 41
Max AS path prepend of ASN (22394) 36
Prefixes from unregistered ASNs in the Routing Table: 768
Unregistered ASNs in the Routing Table: 175
Number of 32-bit ASNs allocated by the RIRs: 351
Prefixes from 32-bit ASNs in the Routing Table: 297
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 173
Number of addresses announced to Internet: 2161429206
Equivalent to 128 /8s, 212 /16s and 202 /24s
Percentage of available address space announced: 58.3
Percentage of allocated address space announced: 66.1
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 80.3
Total number of prefixes smaller than registry allocations: 150586
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 74393
Total APNIC prefixes after maximum aggregation: 25508
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 71168
Unique aggregates announced from the APNIC address blocks: 30955
APNIC Region origin ASes present in the Internet Routing Table: 3884
APNIC Prefixes per ASN: 18.32
APNIC Region origin ASes announcing only one prefix: 1067
APNIC Region transit ASes present in the Internet Routing Table: 612
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 483827968
Equivalent to 28 /8s, 214 /16s and 161 /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, 133/8, 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: 130702
Total ARIN prefixes after maximum aggregation: 67719
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 104626
Unique aggregates announced from the ARIN address blocks: 38827
ARIN Region origin ASes present in the Internet Routing Table: 13418
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5189
ARIN Region transit ASes present in the Internet Routing Table: 1362
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 41
Number of ARIN addresses announced to Internet: 733759777
Equivalent to 43 /8s, 188 /16s and 73 /24s
Percentage of available ARIN address space announced: 64.3
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: 72212
Total RIPE prefixes after maximum aggregation: 41382
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 65582
Unique aggregates announced from the RIPE address blocks: 42759
RIPE Region origin ASes present in the Internet Routing Table: 13879
RIPE Prefixes per ASN: 4.73
RIPE Region origin ASes announcing only one prefix: 7180
RIPE Region transit ASes present in the Internet Routing Table: 2105
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 406929040
Equivalent to 24 /8s, 65 /16s and 62 /24s
Percentage of available RIPE address space announced: 75.8
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: 27606
Total LACNIC prefixes after maximum aggregation: 6515
LACNIC Deaggregation factor: 4.24
Prefixes being announced from the LACNIC address blocks: 25907
Unique aggregates announced from the LACNIC address blocks: 13780
LACNIC Region origin ASes present in the Internet Routing Table: 1225
LACNIC Prefixes per ASN: 21.15
LACNIC Region origin ASes announcing only one prefix: 384
LACNIC Region transit ASes present in the Internet Routing Table: 203
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 69078800
Equivalent to 4 /8s, 30 /16s and 15 /24s
Percentage of available LACNIC address space announced: 68.6
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: 5915
Total AfriNIC prefixes after maximum aggregation: 1580
AfriNIC Deaggregation factor: 3.74
Prefixes being announced from the AfriNIC address blocks: 4335
Unique aggregates announced from the AfriNIC address blocks: 1513
AfriNIC Region origin ASes present in the Internet Routing Table: 333
AfriNIC Prefixes per ASN: 13.02
AfriNIC Region origin ASes announcing only one prefix: 91
AfriNIC Region transit ASes present in the Internet Routing Table: 72
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC addresses announced to Internet: 14298880
Equivalent to 0 /8s, 218 /16s and 47 /24s
Percentage of available AfriNIC address space announced: 42.6
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 1616 7506 454 Korea Telecom (KIX)
17488 1459 143 132 Hathway IP Over Cable Interne
4755 1279 295 147 Videsh Sanchar Nigam Ltd. Aut
9583 1009 75 503 Sify Limited
18101 986 204 34 Reliance Infocom Ltd Internet
4134 954 19458 393 CHINANET-BACKBONE
7545 917 198 98 TPG Internet Pty Ltd
9829 850 674 22 BSNL National Internet Backbo
17974 850 270 58 PT TELEKOMUNIKASI INDONESIA
24560 809 294 175 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 4228 3883 310 bellsouth.net, inc.
4323 3770 1068 401 Time Warner Telecom
20115 2135 1485 660 Charter Communications
1785 1785 699 135 AppliedTheory Corporation
7018 1593 5812 1030 AT&T WorldNet Services
2386 1292 616 940 AT&T Data Communications Serv
3356 1211 10945 425 Level 3 Communications, LLC
6478 1177 255 336 AT&T Worldnet Services
11492 1145 222 14 Cable One
22773 1123 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 517 98 208 Evolva Telecom
9198 471 202 13 Kazakhtelecom Corporate Sales
35805 462 40 5 United Telecom AS
9116 456 296 30 Goldenlines main autonomous s
3292 450 1903 392 TDC Tele Danmark
702 421 1838 339 UUNET - Commercial IP service
8866 380 110 23 Bulgarian Telecommunication C
8551 379 354 41 Bezeq International
3301 375 1411 303 TeliaNet Sweden
3320 359 7068 305 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 1588 2899 232 Uninet S.A. de C.V.
28573 1011 668 86 Types of queries are: POCs, o
10620 1002 223 136 TVCABLE BOGOTA
7303 666 351 96 Telecom Argentina Stet-France
22047 545 302 14 Types of queries are: POCs, o
11830 474 308 59 Instituto Costarricense de El
7738 453 858 29 Telecomunicacoes da Bahia S.A
11172 446 99 70 Alestra
14117 437 29 11 Telefonica del Sur S.A.
6503 430 163 181 AVANTEL, 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 1032 444 8 TEDATA
24863 709 143 52 LINKdotNET AS number
3741 271 853 232 The Internet Solution
2018 175 196 101 TENET-1
6713 175 167 12 Itissalat Al-MAGHRIB
29571 152 19 9 Ci Telecom Autonomous system
29975 134 506 15 Vodacom
5536 121 8 18 Internet Egypt Network
5713 117 508 67 Telkom SA Ltd
33776 113 6 14 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 4228 3883 310 bellsouth.net, inc.
4323 3770 1068 401 Time Warner Telecom
20115 2135 1485 660 Charter Communications
1785 1785 699 135 AppliedTheory Corporation
4766 1616 7506 454 Korea Telecom (KIX)
7018 1593 5812 1030 AT&T WorldNet Services
8151 1588 2899 232 Uninet S.A. de C.V.
17488 1459 143 132 Hathway IP Over Cable Interne
2386 1292 616 940 AT&T Data Communications Serv
4755 1279 295 147 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3770 3369 Time Warner Telecom
1785 1785 1650 AppliedTheory Corporation
20115 2135 1475 Charter Communications
8151 1588 1356 Uninet S.A. de C.V.
17488 1459 1327 Hathway IP Over Cable Interne
4766 1616 1162 Korea Telecom (KIX)
4755 1279 1132 Videsh Sanchar Nigam Ltd. Aut
11492 1145 1131 Cable One
22773 1123 1057 Cox Communications, Inc.
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 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
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 22351 Intelsat
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
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 /8:23 /9:10 /10:25 /11:65 /12:183
/13:384 /14:646 /15:1231 /16:10834 /17:5111 /18:8722
/19:18108 /20:21835 /21:21889 /22:28286 /23:28285 /24:161647
/25:728 /26:997 /27:406 /28:460 /29:755 /30:476
/31:3 /32:278
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2766 4228 bellsouth.net, inc.
4323 2371 3770 Time Warner Telecom
4766 1269 1616 Korea Telecom (KIX)
1785 1251 1785 AppliedTheory Corporation
17488 1225 1459 Hathway IP Over Cable Interne
20115 1141 2135 Charter Communications
11492 1067 1145 Cable One
18566 1040 1059 Covad Communications
7018 957 1593 AT&T WorldNet Services
8452 928 1032 TEDATA
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 2:1 4:13 8:240 12:2066 13:9
15:22 16:3 17:5 20:37 24:1319 32:151
38:626 40:99 41:1840 43:1 44:3 46:1
47:21 52:6 55:2 56:2 57:36 58:649
59:657 60:444 61:1105 62:983 63:2018 64:3774
65:2373 66:4153 67:1795 68:1044 69:2827 70:686
71:246 72:1910 73:2 74:2042 75:200 76:360
77:853 78:603 79:412 80:955 81:815 82:507
83:450 84:542 85:1026 86:394 87:692 88:419
89:1583 90:63 91:2678 92:447 93:1127 94:1342
95:839 96:200 97:286 98:434 99:24 109:184
110:279 111:500 112:157 113:205 114:287 115:477
116:1093 117:594 118:368 119:803 120:144 121:842
122:1308 123:797 124:1015 125:1355 128:213 129:202
130:134 131:461 132:83 133:16 134:183 135:41
136:229 137:167 138:240 139:93 140:458 141:121
142:376 143:339 144:389 145:53 146:390 147:174
148:568 149:192 150:148 151:173 152:220 153:161
154:2 155:270 156:171 157:327 158:98 159:360
160:296 161:174 162:281 163:163 164:308 165:472
166:490 167:392 168:753 169:159 170:593 171:42
172:1 173:393 174:444 180:208 183:161 184:3
186:236 187:178 188:1090 189:691 190:3401 192:5760
193:4349 194:3399 195:2891 196:1191 198:3558 199:3375
200:5281 201:1478 202:8133 203:8293 204:3983 205:2176
206:2414 207:3042 208:3982 209:3404 210:2562 211:1177
212:1701 213:1648 214:245 215:58 216:4462 217:1375
218:484 219:485 220:1142 221:447 222:300
End of report