Routing Table Report 00:00 GMT Sun 06 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: 301555
Prefixes after maximum aggregation: 140372
Deaggregation factor: 2.15
Unique aggregates announced to Internet: 147237
Total ASes present in the Internet Routing Table: 32143
Prefixes per ASN: 9.38
Origin-only ASes present in the Internet Routing Table: 27942
Origin ASes announcing only one prefix: 13624
Transit ASes present in the Internet Routing Table: 4201
Transit-only ASes present in the Internet Routing Table: 100
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 26
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 473
Unregistered ASNs in the Routing Table: 139
Number of 32-bit ASNs allocated by the RIRs: 261
Prefixes from 32-bit ASNs in the Routing Table: 109
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 323
Number of addresses announced to Internet: 2102446226
Equivalent to 125 /8s, 80 /16s and 200 /24s
Percentage of available address space announced: 56.7
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 87.3
Percentage of address space in use by end-sites: 78.8
Total number of prefixes smaller than registry allocations: 145829
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71207
Total APNIC prefixes after maximum aggregation: 25254
APNIC Deaggregation factor: 2.82
Prefixes being announced from the APNIC address blocks: 70679
Unique aggregates announced from the APNIC address blocks: 31758
APNIC Region origin ASes present in the Internet Routing Table: 3764
APNIC Prefixes per ASN: 18.78
APNIC Region origin ASes announcing only one prefix: 1037
APNIC Region transit ASes present in the Internet Routing Table: 572
Average APNIC Region AS path length visible: 5.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 493155264
Equivalent to 29 /8s, 100 /16s and 243 /24s
Percentage of available APNIC address space announced: 84.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
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: 126744
Total ARIN prefixes after maximum aggregation: 66912
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 127045
Unique aggregates announced from the ARIN address blocks: 52750
ARIN Region origin ASes present in the Internet Routing Table: 13231
ARIN Prefixes per ASN: 9.60
ARIN Region origin ASes announcing only one prefix: 5119
ARIN Region transit ASes present in the Internet Routing Table: 1314
Average ARIN Region AS path length visible: 5.1
Max ARIN Region AS path length visible: 26
Number of ARIN addresses announced to Internet: 1013702805
Equivalent to 60 /8s, 107 /16s and 224 /24s
Percentage of available ARIN address space announced: 88.9
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
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: 69219
Total RIPE prefixes after maximum aggregation: 40161
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 69095
Unique aggregates announced from the RIPE address blocks: 45688
RIPE Region origin ASes present in the Internet Routing Table: 13462
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 7002
RIPE Region transit ASes present in the Internet Routing Table: 2003
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 500214312
Equivalent to 29 /8s, 208 /16s and 170 /24s
Percentage of available RIPE address space announced: 99.4
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
RIPE Address Blocks 25/8, 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: 27899
Total LACNIC prefixes after maximum aggregation: 6223
LACNIC Deaggregation factor: 4.48
Prefixes being announced from the LACNIC address blocks: 27902
Unique aggregates announced from the LACNIC address blocks: 14131
LACNIC Region origin ASes present in the Internet Routing Table: 1177
LACNIC Prefixes per ASN: 23.71
LACNIC Region origin ASes announcing only one prefix: 376
LACNIC Region transit ASes present in the Internet Routing Table: 193
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 73779472
Equivalent to 4 /8s, 101 /16s and 201 /24s
Percentage of available LACNIC address space announced: 73.3
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247
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: 6122
Total AfriNIC prefixes after maximum aggregation: 1571
AfriNIC Deaggregation factor: 3.90
Prefixes being announced from the AfriNIC address blocks: 6511
Unique aggregates announced from the AfriNIC address blocks: 2646
AfriNIC Region origin ASes present in the Internet Routing Table: 314
AfriNIC Prefixes per ASN: 20.74
AfriNIC Region origin ASes announcing only one prefix: 90
AfriNIC Region transit ASes present in the Internet Routing Table: 68
Average AfriNIC Region AS path length visible: 5.7
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 20169728
Equivalent to 1 /8s, 51 /16s and 196 /24s
Percentage of available AfriNIC address space announced: 60.1
AfriNIC AS Blocks 36864-37887 & 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 1566 6982 427 Korea Telecom (KIX)
17488 1554 140 103 Hathway IP Over Cable Interne
4755 1233 292 143 Videsh Sanchar Nigam Ltd. Aut
9583 1105 87 536 Sify Limited
18101 951 201 31 Reliance Infocom Ltd Internet
4134 947 18165 390 CHINANET-BACKBONE
23577 913 34 759 KRNIC
7545 823 198 103 TPG Internet Pty Ltd
9829 804 621 21 BSNL National Internet Backbo
24560 750 256 158 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 4179 3626 313 bellsouth.net, inc.
20115 1978 1478 677 Charter Communications
4323 1922 1049 387 Time Warner Telecom
1785 1736 714 137 AppliedTheory Corporation
7018 1495 5900 1055 AT&T WorldNet Services
6478 1397 281 255 AT&T Worldnet Services
2386 1289 641 943 AT&T Data Communications Serv
3356 1228 10980 439 Level 3 Communications, LLC
11492 1120 208 12 Cable One
22773 1096 2604 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
702 626 1823 348 UUNET - Commercial IP service
30890 487 92 197 Evolva Telecom
12479 477 578 6 Uni2 Autonomous System
3292 467 1904 396 TDC Tele Danmark
35805 385 40 5 United Telecom AS
3301 376 1412 308 TeliaNet Sweden
9198 364 138 12 Kazakhtelecom Corporate Sales
8866 358 109 22 Bulgarian Telecommunication C
3320 353 7067 303 Deutsche Telekom AG
3215 344 3081 109 France Telecom Transpac
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 2252 335 95 Telecom Argentina Stet-France
8151 1473 2899 243 Uninet S.A. de C.V.
10620 1008 225 100 TVCABLE BOGOTA
28573 706 608 62 Types of queries are: POCs, o
22047 542 302 14 Types of queries are: POCs, o
11830 477 310 58 Instituto Costarricense de El
11172 442 99 71 Alestra
7738 441 862 30 Telecomunicacoes da Bahia S.A
14117 436 29 11 Telefonica del Sur S.A.
6471 421 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 993 188 7 TEDATA
24863 937 95 54 LINKdotNET AS number
20858 296 34 6 EgyNet
3741 274 856 235 The Internet Solution
2018 202 180 142 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
24835 131 46 9 RAYA Telecom - Egypt
29571 128 14 6 Ci Telecom Autonomous system
33776 123 7 11 Starcomms Nigeria Limited
5536 122 8 13 Internet Egypt Network
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 4179 3626 313 bellsouth.net, inc.
7303 2252 335 95 Telecom Argentina Stet-France
20115 1978 1478 677 Charter Communications
4323 1922 1049 387 Time Warner Telecom
1785 1736 714 137 AppliedTheory Corporation
4766 1566 6982 427 Korea Telecom (KIX)
17488 1554 140 103 Hathway IP Over Cable Interne
7018 1495 5900 1055 AT&T WorldNet Services
8151 1473 2899 243 Uninet S.A. de C.V.
6478 1397 281 255 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
7303 2252 2157 Telecom Argentina Stet-France
1785 1736 1599 AppliedTheory Corporation
4323 1922 1535 Time Warner Telecom
17488 1554 1451 Hathway IP Over Cable Interne
20115 1978 1301 Charter Communications
8151 1473 1230 Uninet S.A. de C.V.
6478 1397 1142 AT&T Worldnet Services
4766 1566 1139 Korea Telecom (KIX)
11492 1120 1108 Cable One
4755 1233 1090 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
10.29.248.71/32 286 KPNQwest Backbone AS
36.126.8.255/8 77 Johns Hopkins University Appl
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.176.0/22 36981 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
43.245.96.0/20 7502 Internetwork Kyoto
43.245.112.0/20 7502 Internetwork Kyoto
43.245.192.0/20 7502 Internetwork Kyoto
43.245.208.0/20 7502 Internetwork Kyoto
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 /11:62 /12:177
/13:354 /14:629 /15:1189 /16:10667 /17:4915 /18:8464
/19:17539 /20:20847 /21:20891 /22:27820 /23:27057 /24:156191
/25:830 /26:1041 /27:521 /28:460 /29:711 /30:824
/31:3 /32:308
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2708 4179 bellsouth.net, inc.
7303 1749 2252 Telecom Argentina Stet-France
17488 1300 1554 Hathway IP Over Cable Interne
4766 1245 1566 Korea Telecom (KIX)
1785 1206 1736 AppliedTheory Corporation
11492 1047 1120 Cable One
18566 1043 1062 Covad Communications
20115 993 1978 Charter Communications
4323 967 1922 Time Warner Telecom
9583 957 1105 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:217 12:2148 13:7 15:21 16:3
17:5 20:35 24:1159 32:151 34:2 38:599
40:97 41:1728 43:1 44:2 47:24 52:6
55:2 56:2 57:38 58:597 59:610 60:460
61:961 62:1141 63:2028 64:3641 65:2397 66:3494
67:1773 68:963 69:2737 70:558 71:174 72:1699
73:2 74:1739 75:181 76:320 77:866 78:584
79:379 80:927 81:821 82:570 83:426 84:644
85:1057 86:383 87:676 88:372 89:1473 90:52
91:2529 92:397 93:1135 94:1162 95:918 96:166
97:269 98:272 99:30 109:1 110:191 111:409
112:128 113:149 114:244 115:312 116:1146 117:575
118:323 119:774 120:120 121:644 122:1249 123:760
124:1065 125:1360 128:224 129:220 130:174 131:420
132:75 133:9 134:173 135:42 136:225 137:161
138:171 139:96 140:437 141:125 142:386 143:336
144:385 145:49 146:390 147:161 148:530 149:291
150:207 151:186 152:210 153:160 154:2 155:278
156:168 157:306 158:112 159:351 160:291 161:164
162:270 163:164 164:276 165:526 166:473 167:367
168:709 169:167 170:511 171:42 172:2 173:408
174:332 175:1 178:1 180:14 182:1 186:150
187:181 188:752 189:694 190:3420 192:5804 193:4383
194:3395 195:2883 196:1124 198:3557 199:3352 200:5498
201:1444 202:7800 203:8295 204:3892 205:2299 206:2406
207:2719 208:3963 209:3416 210:2541 211:1134 212:1650
213:1717 214:175 215:32 216:4338 217:1339 218:415
219:454 220:1112 221:462 222:323
End of report