Routing Table Report 00:00 GMT Wed 30 Sep, 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: 306831
Prefixes after maximum aggregation: 140942
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 147998
Total ASes present in the Internet Routing Table: 32327
Prefixes per ASN: 9.49
Origin-only ASes present in the Internet Routing Table: 28021
Origin ASes announcing only one prefix: 13676
Transit ASes present in the Internet Routing Table: 4306
Transit-only ASes present in the Internet Routing Table: 105
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 32
Max AS path prepend of ASN (45127) 27
Prefixes from unregistered ASNs in the Routing Table: 572
Unregistered ASNs in the Routing Table: 145
Number of 32-bit ASNs allocated by the RIRs: 288
Prefixes from 32-bit ASNs in the Routing Table: 211
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 210
Number of addresses announced to Internet: 2109943834
Equivalent to 125 /8s, 195 /16s and 48 /24s
Percentage of available address space announced: 56.9
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 79.1
Total number of prefixes smaller than registry allocations: 149144
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 72782
Total APNIC prefixes after maximum aggregation: 25364
APNIC Deaggregation factor: 2.87
Prefixes being announced from the APNIC address blocks: 69059
Unique aggregates announced from the APNIC address blocks: 30009
APNIC Region origin ASes present in the Internet Routing Table: 3799
APNIC Prefixes per ASN: 18.18
APNIC Region origin ASes announcing only one prefix: 1050
APNIC Region transit ASes present in the Internet Routing Table: 591
Average APNIC Region AS path length visible: 5.1
Max APNIC Region AS path length visible: 32
Number of APNIC addresses announced to Internet: 461440256
Equivalent to 27 /8s, 129 /16s and 5 /24s
Percentage of available APNIC address space announced: 78.6
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: 128603
Total ARIN prefixes after maximum aggregation: 67073
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 102777
Unique aggregates announced from the ARIN address blocks: 38367
ARIN Region origin ASes present in the Internet Routing Table: 13276
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5140
ARIN Region transit ASes present in the Internet Routing Table: 1336
Average ARIN Region AS path length visible: 4.1
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 706266501
Equivalent to 42 /8s, 24 /16s and 197 /24s
Percentage of available ARIN address space announced: 61.9
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: 70661
Total RIPE prefixes after maximum aggregation: 40388
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 64294
Unique aggregates announced from the RIPE address blocks: 41792
RIPE Region origin ASes present in the Internet Routing Table: 13545
RIPE Prefixes per ASN: 4.75
RIPE Region origin ASes announcing only one prefix: 7015
RIPE Region transit ASes present in the Internet Routing Table: 2059
Average RIPE Region AS path length visible: 4.7
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 399743792
Equivalent to 23 /8s, 211 /16s and 155 /24s
Percentage of available RIPE address space announced: 74.5
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: 28469
Total LACNIC prefixes after maximum aggregation: 6289
LACNIC Deaggregation factor: 4.53
Prefixes being announced from the LACNIC address blocks: 26758
Unique aggregates announced from the LACNIC address blocks: 13351
LACNIC Region origin ASes present in the Internet Routing Table: 1190
LACNIC Prefixes per ASN: 22.49
LACNIC Region origin ASes announcing only one prefix: 376
LACNIC Region transit ASes present in the Internet Routing Table: 196
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 66604816
Equivalent to 3 /8s, 248 /16s and 79 /24s
Percentage of available LACNIC address space announced: 66.2
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: 5839
Total AfriNIC prefixes after maximum aggregation: 1552
AfriNIC Deaggregation factor: 3.76
Prefixes being announced from the AfriNIC address blocks: 4257
Unique aggregates announced from the AfriNIC address blocks: 1527
AfriNIC Region origin ASes present in the Internet Routing Table: 320
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 95
AfriNIC Region transit ASes present in the Internet Routing Table: 66
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 20
Number of AfriNIC addresses announced to Internet: 12550144
Equivalent to 0 /8s, 191 /16s and 128 /24s
Percentage of available AfriNIC address space announced: 37.4
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 1594 6995 450 Korea Telecom (KIX)
17488 1477 135 139 Hathway IP Over Cable Interne
4755 1253 292 143 Videsh Sanchar Nigam Ltd. Aut
9583 1111 87 532 Sify Limited
18101 976 204 33 Reliance Infocom Ltd Internet
4134 952 18168 391 CHINANET-BACKBONE
7545 874 199 101 TPG Internet Pty Ltd
23577 873 33 730 KRNIC
9829 813 626 19 BSNL National Internet Backbo
24560 774 285 164 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 4164 3627 313 bellsouth.net, inc.
4323 3697 1037 383 Time Warner Telecom
20115 1983 1479 659 Charter Communications
1785 1753 714 138 AppliedTheory Corporation
7018 1512 9977 1051 AT&T WorldNet Services
6478 1412 279 301 AT&T Worldnet Services
2386 1321 643 957 AT&T Data Communications Serv
3356 1236 10963 434 Level 3 Communications, LLC
11492 1130 208 12 Cable One
22773 1110 2604 67 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
9116 534 296 30 Goldenlines main autonomous s
30890 494 93 203 Evolva Telecom
3292 445 1900 392 TDC Tele Danmark
35805 440 40 5 United Telecom AS
702 429 1823 347 UUNET - Commercial IP service
12479 425 578 6 Uni2 Autonomous System
3301 380 1412 308 TeliaNet Sweden
9198 372 138 12 Kazakhtelecom Corporate Sales
8866 358 110 23 Bulgarian Telecommunication C
3320 351 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
7303 2345 341 95 Telecom Argentina Stet-France
8151 1476 2899 243 Uninet S.A. de C.V.
10620 1010 226 96 TVCABLE BOGOTA
28573 841 638 88 Types of queries are: POCs, o
22047 545 302 14 Types of queries are: POCs, o
11830 476 310 61 Instituto Costarricense de El
7738 447 858 29 Telecomunicacoes da Bahia S.A
11172 440 99 70 Alestra
14117 436 29 11 Telefonica del Sur S.A.
16735 428 124 11 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 968 188 7 TEDATA
24863 938 96 61 LINKdotNET AS number
3741 272 856 234 The Internet Solution
6713 175 166 16 Itissalat Al-MAGHRIB
2018 173 175 127 TENET-1
29571 139 14 6 Ci Telecom Autonomous system
33776 125 7 11 Starcomms Nigeria Limited
24835 123 46 9 RAYA Telecom - Egypt
5536 122 8 13 Internet Egypt Network
5713 118 520 69 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 4164 3627 313 bellsouth.net, inc.
4323 3697 1037 383 Time Warner Telecom
7303 2345 341 95 Telecom Argentina Stet-France
20115 1983 1479 659 Charter Communications
1785 1753 714 138 AppliedTheory Corporation
4766 1594 6995 450 Korea Telecom (KIX)
7018 1512 9977 1051 AT&T WorldNet Services
17488 1477 135 139 Hathway IP Over Cable Interne
8151 1476 2899 243 Uninet S.A. de C.V.
6478 1412 279 301 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
4323 3697 3314 Time Warner Telecom
7303 2345 2250 Telecom Argentina Stet-France
1785 1753 1615 AppliedTheory Corporation
17488 1477 1338 Hathway IP Over Cable Interne
20115 1983 1324 Charter Communications
8151 1476 1233 Uninet S.A. de C.V.
4766 1594 1144 Korea Telecom (KIX)
11492 1130 1118 Cable One
6478 1412 1111 AT&T Worldnet Services
4755 1253 1110 Videsh Sanchar Nigam Ltd. Aut
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
2.144.0.0/16 3736 The Rabbit Network, Inc.
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
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 /8:21 /9:10 /10:24 /11:63 /12:179
/13:357 /14:631 /15:1207 /16:10706 /17:4935 /18:8506
/19:17829 /20:21306 /21:21355 /22:28379 /23:27444 /24:159094
/25:815 /26:1038 /27:498 /28:487 /29:778 /30:850
/31:3 /32:316
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2696 4164 bellsouth.net, inc.
4323 2359 3697 Time Warner Telecom
7303 1823 2345 Telecom Argentina Stet-France
4766 1268 1594 Korea Telecom (KIX)
17488 1238 1477 Hathway IP Over Cable Interne
1785 1219 1753 AppliedTheory Corporation
11492 1056 1130 Cable One
18566 1043 1062 Covad Communications
20115 993 1983 Charter Communications
9583 963 1111 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:228 12:2159 13:7 15:22
16:3 17:5 20:36 24:1205 32:151 34:2
38:604 40:97 41:1701 43:1 44:2 46:1
47:16 52:6 55:2 56:2 57:38 58:611
59:644 60:450 61:1079 62:1049 63:2033 64:3722
65:2411 66:4148 67:1779 68:981 69:2769 70:577
71:165 72:1676 73:2 74:1958 75:184 76:349
77:881 78:600 79:398 80:927 81:802 82:541
83:439 84:524 85:1033 86:397 87:692 88:393
89:1522 90:61 91:2601 92:404 93:1237 94:1245
95:1111 96:170 97:268 98:299 99:30 109:44
110:209 111:444 112:139 113:149 114:262 115:353
116:1113 117:550 118:329 119:770 120:136 121:784
122:1285 123:776 124:1048 125:1351 128:223 129:217
130:174 131:425 132:74 133:10 134:173 135:42
136:240 137:165 138:177 139:95 140:442 141:121
142:383 143:334 144:349 145:49 146:390 147:171
148:548 149:213 150:148 151:181 152:216 153:156
154:2 155:267 156:167 157:308 158:113 159:354
160:290 161:166 162:270 163:167 164:281 165:519
166:475 167:372 168:791 169:167 170:501 171:43
172:2 173:418 174:361 175:1 178:1 180:37
182:1 186:153 187:197 188:1051 189:702 190:3514
192:5808 193:4304 194:3340 195:2860 196:1124 198:3561
199:3353 200:5567 201:1475 202:7977 203:8216 204:3937
205:2215 206:2452 207:2976 208:3961 209:3500 210:2566
211:1158 212:1687 213:1656 214:175 215:40 216:4457
217:1324 218:418 219:480 220:1134 221:442 222:317
End of report