Routing Table Report 00:00 GMT Sat 12 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: 311511
Prefixes after maximum aggregation: 143017
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 141164
Total ASes present in the Internet Routing Table: 32962
Prefixes per ASN: 9.45
Origin-only ASes present in the Internet Routing Table: 28532
Origin ASes announcing only one prefix: 13927
Transit ASes present in the Internet Routing Table: 4430
Transit-only ASes present in the Internet Routing Table: 110
Average AS path length visible in the Internet Routing Table: 4.2
Max AS path length visible: 26
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 761
Unregistered ASNs in the Routing Table: 174
Number of 32-bit ASNs allocated by the RIRs: 351
Prefixes from 32-bit ASNs in the Routing Table: 310
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 165
Number of addresses announced to Internet: 1869182703
Equivalent to 111 /8s, 105 /16s and 118 /24s
Percentage of available address space announced: 50.4
Percentage of allocated address space announced: 57.2
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: 150667
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 74465
Total APNIC prefixes after maximum aggregation: 25525
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 71236
Unique aggregates announced from the APNIC address blocks: 23827
APNIC Region origin ASes present in the Internet Routing Table: 3886
APNIC Prefixes per ASN: 18.33
APNIC Region origin ASes announcing only one prefix: 1064
APNIC Region transit ASes present in the Internet Routing Table: 613
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 309011712
Equivalent to 18 /8s, 107 /16s and 37 /24s
Percentage of available APNIC address space announced: 51.2
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: 130603
Total ARIN prefixes after maximum aggregation: 67653
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 104577
Unique aggregates announced from the ARIN address blocks: 38772
ARIN Region origin ASes present in the Internet Routing Table: 13416
ARIN Prefixes per ASN: 7.79
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: 26
Number of ARIN addresses announced to Internet: 733732129
Equivalent to 43 /8s, 187 /16s and 221 /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: 72338
Total RIPE prefixes after maximum aggregation: 41434
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 65709
Unique aggregates announced from the RIPE address blocks: 42839
RIPE Region origin ASes present in the Internet Routing Table: 13906
RIPE Prefixes per ASN: 4.73
RIPE Region origin ASes announcing only one prefix: 7201
RIPE Region transit ASes present in the Internet Routing Table: 2112
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 407140521
Equivalent to 24 /8s, 68 /16s and 120 /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: 27612
Total LACNIC prefixes after maximum aggregation: 6499
LACNIC Deaggregation factor: 4.25
Prefixes being announced from the LACNIC address blocks: 25916
Unique aggregates announced from the LACNIC address blocks: 13743
LACNIC Region origin ASes present in the Internet Routing Table: 1223
LACNIC Prefixes per ASN: 21.19
LACNIC Region origin ASes announcing only one prefix: 381
LACNIC Region transit ASes present in the Internet Routing Table: 202
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 69113360
Equivalent to 4 /8s, 30 /16s and 150 /24s
Percentage of available LACNIC address space announced: 68.7
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: 5923
Total AfriNIC prefixes after maximum aggregation: 1581
AfriNIC Deaggregation factor: 3.75
Prefixes being announced from the AfriNIC address blocks: 4337
Unique aggregates announced from the AfriNIC address blocks: 1524
AfriNIC Region origin ASes present in the Internet Routing Table: 335
AfriNIC Prefixes per ASN: 12.95
AfriNIC Region origin ASes announcing only one prefix: 92
AfriNIC Region transit ASes present in the Internet Routing Table: 73
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 21
Number of AfriNIC addresses announced to Internet: 14307328
Equivalent to 0 /8s, 218 /16s and 80 /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 1617 7508 455 Korea Telecom (KIX)
17488 1458 143 132 Hathway IP Over Cable Interne
4755 1277 295 146 Videsh Sanchar Nigam Ltd. Aut
9583 1001 74 498 Sify Limited
18101 992 204 34 Reliance Infocom Ltd Internet
4134 954 19458 393 CHINANET-BACKBONE
7545 916 198 97 TPG Internet Pty Ltd
17974 851 270 58 PT TELEKOMUNIKASI INDONESIA
9829 850 674 22 BSNL National Internet Backbo
24560 810 294 176 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 1067 400 Time Warner Telecom
20115 2135 1485 660 Charter Communications
1785 1791 699 135 AppliedTheory Corporation
7018 1594 5813 1032 AT&T WorldNet Services
2386 1291 616 940 AT&T Data Communications Serv
3356 1210 10944 424 Level 3 Communications, LLC
6478 1169 253 330 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 475 202 13 Kazakhtelecom Corporate Sales
35805 465 40 5 United Telecom AS
9116 456 296 30 Goldenlines main autonomous s
3292 450 1903 392 TDC Tele Danmark
702 419 1837 337 UUNET - Commercial IP service
8866 380 110 23 Bulgarian Telecommunication C
8551 379 354 41 Bezeq International
3301 375 1411 303 TeliaNet Sweden
3320 360 7068 306 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 1585 2899 231 Uninet S.A. de C.V.
28573 1012 669 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 432 163 182 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 178 196 100 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 115 508 65 Telkom SA Ltd
33776 112 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 1067 400 Time Warner Telecom
20115 2135 1485 660 Charter Communications
1785 1791 699 135 AppliedTheory Corporation
4766 1617 7508 455 Korea Telecom (KIX)
7018 1594 5813 1032 AT&T WorldNet Services
8151 1585 2899 231 Uninet S.A. de C.V.
17488 1458 143 132 Hathway IP Over Cable Interne
2386 1291 616 940 AT&T Data Communications Serv
4755 1277 295 146 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 3370 Time Warner Telecom
1785 1791 1656 AppliedTheory Corporation
20115 2135 1475 Charter Communications
8151 1585 1354 Uninet S.A. de C.V.
17488 1458 1326 Hathway IP Over Cable Interne
4766 1617 1162 Korea Telecom (KIX)
4755 1277 1131 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 /8:22 /9:10 /10:25 /11:65 /12:183
/13:384 /14:646 /15:1231 /16:10844 /17:5116 /18:8719
/19:18119 /20:21841 /21:21893 /22:28300 /23:28324 /24:161571
/25:743 /26:1025 /27:414 /28:467 /29:762 /30:518
/31:3 /32:286
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2766 4228 bellsouth.net, inc.
4323 2370 3770 Time Warner Telecom
4766 1269 1617 Korea Telecom (KIX)
1785 1256 1791 AppliedTheory Corporation
17488 1224 1458 Hathway IP Over Cable Interne
20115 1141 2135 Charter Communications
11492 1067 1145 Cable One
18566 1040 1059 Covad Communications
7018 957 1594 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 12:2069 13:9
15:22 16:3 17:5 20:37 24:1323 32:151
38:626 40:99 41:1829 43:1 44:3 46:1
47:21 52:6 55:2 56:2 57:36 58:648
59:657 60:444 61:1106 62:983 63:2021 64:3784
65:2377 66:4148 67:1784 68:1043 69:2831 70:686
71:246 72:1897 73:3 74:2044 75:200 76:359
77:854 78:602 79:413 80:946 81:813 82:504
83:450 84:543 85:1030 86:394 87:692 88:420
89:1576 90:63 91:2677 92:449 93:1130 94:1345
95:841 96:183 97:286 98:433 99:24 109:187
110:278 111:499 112:157 113:206 114:288 115:478
116:1090 117:592 118:371 119:799 120:144 121:840
122:1312 123:795 124:1018 125:1354 128:213 129:202
130:134 131:442 132:83 133:16 134:183 135:41
136:229 137:162 138:236 139:93 140:448 141:121
142:376 143:339 144:390 145:53 146:390 147:173
148:568 149:192 150:148 151:173 152:220 153:161
154:2 155:270 156:171 157:327 158:97 159:357
160:298 161:174 162:281 163:163 164:308 165:471
166:490 167:392 168:754 169:159 170:593 171:42
172:1 173:391 174:446 180:201 183:166 184:3
186:194 187:184 188:1078 189:693 190:3421 192:5756
193:4361 194:3410 195:2894 196:1195 198:3563 199:3388
200:5262 201:1480 202:8138 203:8279 204:3990 205:2167
206:2411 207:3047 208:3974 209:3401 210:2565 211:1177
212:1705 213:1685 214:229 215:45 216:4464 217:1367
218:485 219:485 220:1149 221:449 222:300
End of report