Routing Table Report 00:00 GMT Thu 26 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: 309293
Prefixes after maximum aggregation: 142537
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 100861
Total ASes present in the Internet Routing Table: 32829
Prefixes per ASN: 9.42
Origin-only ASes present in the Internet Routing Table: 28468
Origin ASes announcing only one prefix: 13860
Transit ASes present in the Internet Routing Table: 4361
Transit-only ASes present in the Internet Routing Table: 101
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 41
Max AS path prepend of ASN (22394) 36
Prefixes from unregistered ASNs in the Routing Table: 753
Unregistered ASNs in the Routing Table: 173
Number of 32-bit ASNs allocated by the RIRs: 336
Prefixes from 32-bit ASNs in the Routing Table: 281
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 224
Number of addresses announced to Internet: 1217916498
Equivalent to 72 /8s, 151 /16s and 238 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 37.2
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 80.1
Total number of prefixes smaller than registry allocations: 149350
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 73396
Total APNIC prefixes after maximum aggregation: 25409
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 70026
Unique aggregates announced from the APNIC address blocks: 20552
APNIC Region origin ASes present in the Internet Routing Table: 3871
APNIC Prefixes per ASN: 18.09
APNIC Region origin ASes announcing only one prefix: 1060
APNIC Region transit ASes present in the Internet Routing Table: 600
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 222986752
Equivalent to 13 /8s, 74 /16s and 130 /24s
Percentage of available APNIC address space announced: 38.0
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: 130185
Total ARIN prefixes after maximum aggregation: 67647
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 104037
Unique aggregates announced from the ARIN address blocks: 24894
ARIN Region origin ASes present in the Internet Routing Table: 13394
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5172
ARIN Region transit ASes present in the Internet Routing Table: 1366
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 41
Number of ARIN addresses announced to Internet: 473257249
Equivalent to 28 /8s, 53 /16s and 85 /24s
Percentage of available ARIN address space announced: 41.5
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: 72204
Total RIPE prefixes after maximum aggregation: 41147
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 65338
Unique aggregates announced from the RIPE address blocks: 19797
RIPE Region origin ASes present in the Internet Routing Table: 13825
RIPE Prefixes per ASN: 4.73
RIPE Region origin ASes announcing only one prefix: 7151
RIPE Region transit ASes present in the Internet Routing Table: 2075
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 105582732
Equivalent to 6 /8s, 75 /16s and 16 /24s
Percentage of available RIPE address space announced: 19.7
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: 27194
Total LACNIC prefixes after maximum aggregation: 6473
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 25511
Unique aggregates announced from the LACNIC address blocks: 13666
LACNIC Region origin ASes present in the Internet Routing Table: 1218
LACNIC Prefixes per ASN: 20.94
LACNIC Region origin ASes announcing only one prefix: 383
LACNIC Region transit ASes present in the Internet Routing Table: 203
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 68289552
Equivalent to 4 /8s, 18 /16s and 4 /24s
Percentage of available LACNIC address space announced: 67.8
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: 5780
Total AfriNIC prefixes after maximum aggregation: 1548
AfriNIC Deaggregation factor: 3.73
Prefixes being announced from the AfriNIC address blocks: 4162
Unique aggregates announced from the AfriNIC address blocks: 1319
AfriNIC Region origin ASes present in the Internet Routing Table: 331
AfriNIC Prefixes per ASN: 12.57
AfriNIC Region origin ASes announcing only one prefix: 94
AfriNIC Region transit ASes present in the Internet Routing Table: 70
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12939520
Equivalent to 0 /8s, 197 /16s and 113 /24s
Percentage of available AfriNIC address space announced: 38.6
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 1601 7506 455 Korea Telecom (KIX)
17488 1446 143 135 Hathway IP Over Cable Interne
4755 1277 295 147 Videsh Sanchar Nigam Ltd. Aut
9583 1006 75 496 Sify Limited
18101 983 204 35 Reliance Infocom Ltd Internet
4134 956 19331 395 CHINANET-BACKBONE
7545 910 198 99 TPG Internet Pty Ltd
17974 859 265 60 PT TELEKOMUNIKASI INDONESIA
9829 849 665 21 BSNL National Internet Backbo
24560 804 293 175 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 4242 3877 308 bellsouth.net, inc.
4323 3751 1069 399 Time Warner Telecom
20115 2130 1485 664 Charter Communications
1785 1780 714 136 AppliedTheory Corporation
7018 1593 5798 1035 AT&T WorldNet Services
2386 1295 616 939 AT&T Data Communications Serv
3356 1237 10966 445 Level 3 Communications, LLC
6478 1188 251 315 AT&T Worldnet Services
11492 1142 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 514 98 207 Evolva Telecom
9198 468 138 12 Kazakhtelecom Corporate Sales
35805 464 40 5 United Telecom AS
3292 447 1906 390 TDC Tele Danmark
9116 441 296 30 Goldenlines main autonomous s
702 419 1837 337 UUNET - Commercial IP service
8551 379 354 41 Bezeq International
3301 377 1428 304 TeliaNet Sweden
8866 364 110 23 Bulgarian Telecommunication C
3320 358 7067 304 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 1578 2898 228 Uninet S.A. de C.V.
28573 1004 671 81 Types of queries are: POCs, o
10620 996 223 142 TVCABLE BOGOTA
7303 657 349 96 Telecom Argentina Stet-France
22047 546 302 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 445 99 70 Alestra
14117 437 29 11 Telefonica del Sur S.A.
6503 425 162 184 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 929 188 7 TEDATA
24863 753 130 46 LINKdotNET AS number
3741 273 857 233 The Internet Solution
2018 191 188 118 TENET-1
6713 176 167 12 Itissalat Al-MAGHRIB
29975 134 506 15 Vodacom
29571 133 15 8 Ci Telecom Autonomous system
33776 124 7 11 Starcomms Nigeria Limited
5536 121 8 18 Internet Egypt Network
5713 117 508 67 Telkom SA Ltd
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 4242 3877 308 bellsouth.net, inc.
4323 3751 1069 399 Time Warner Telecom
20115 2130 1485 664 Charter Communications
1785 1780 714 136 AppliedTheory Corporation
4766 1601 7506 455 Korea Telecom (KIX)
7018 1593 5798 1035 AT&T WorldNet Services
8151 1578 2898 228 Uninet S.A. de C.V.
17488 1446 143 135 Hathway IP Over Cable Interne
2386 1295 616 939 AT&T Data Communications Serv
4755 1277 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 3751 3352 Time Warner Telecom
1785 1780 1644 AppliedTheory Corporation
20115 2130 1466 Charter Communications
8151 1578 1350 Uninet S.A. de C.V.
17488 1446 1311 Hathway IP Over Cable Interne
4766 1601 1146 Korea Telecom (KIX)
4755 1277 1130 Videsh Sanchar Nigam Ltd. Aut
11492 1142 1128 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 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
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 /8:21 /9:10 /10:25 /11:65 /12:181
/13:366 /14:640 /15:1227 /16:10765 /17:5072 /18:8690
/19:18052 /20:21714 /21:21755 /22:28093 /23:28039 /24:160451
/25:751 /26:999 /27:394 /28:451 /29:756 /30:497
/31:3 /32:276
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2777 4242 bellsouth.net, inc.
4323 2367 3751 Time Warner Telecom
4766 1271 1601 Korea Telecom (KIX)
1785 1247 1780 AppliedTheory Corporation
17488 1219 1446 Hathway IP Over Cable Interne
20115 1134 2130 Charter Communications
11492 1064 1142 Cable One
18566 1040 1059 Covad Communications
7018 957 1593 AT&T WorldNet Services
10620 902 996 TVCABLE BOGOTA
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:238 12:2067 13:8 15:22
16:3 17:5 20:36 24:1308 32:151 34:2
38:622 40:99 41:1697 43:1 44:2 46:1
47:21 52:6 55:2 56:2 57:36 58:637
59:612 60:443 61:982 62:970 63:2015 64:3716
65:2371 66:4131 67:1789 68:1025 69:2822 70:615
71:170 72:1774 73:2 74:2020 75:199 76:355
77:856 78:608 79:391 80:944 81:815 82:514
83:453 84:535 85:1021 86:394 87:702 88:443
89:1590 90:56 91:2656 92:452 93:1164 94:1332
95:829 96:201 97:277 98:428 99:27 109:171
110:275 111:458 112:153 113:175 114:285 115:368
116:1094 117:593 118:368 119:801 120:136 121:710
122:1307 123:796 124:1057 125:1366 128:215 129:204
130:134 131:444 132:82 133:16 134:186 135:41
136:232 137:166 138:235 139:95 140:466 141:122
142:389 143:339 144:386 145:52 146:392 147:172
148:559 149:192 150:148 151:172 152:220 153:161
154:2 155:274 156:166 157:315 158:97 159:360
160:294 161:175 162:277 163:162 164:316 165:469
166:490 167:391 168:754 169:159 170:588 171:42
172:1 173:394 174:404 180:200 183:138 184:1
186:179 187:199 188:1350 189:682 190:3290 192:5771
193:4337 194:3379 195:2874 196:1183 198:3576 199:3390
200:5283 201:1451 202:8076 203:8289 204:3984 205:2171
206:2419 207:3047 208:3981 209:3421 210:2542 211:1181
212:1700 213:1657 214:245 215:57 216:4485 217:1355
218:477 219:451 220:1139 221:448 222:300
End of report