Routing Table Report 00:00 GMT Tue 08 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: 301861
Prefixes after maximum aggregation: 140403
Deaggregation factor: 2.15
Unique aggregates announced to Internet: 147300
Total ASes present in the Internet Routing Table: 32161
Prefixes per ASN: 9.39
Origin-only ASes present in the Internet Routing Table: 27946
Origin ASes announcing only one prefix: 13624
Transit ASes present in the Internet Routing Table: 4215
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: 477
Unregistered ASNs in the Routing Table: 139
Number of 32-bit ASNs allocated by the RIRs: 263
Prefixes from 32-bit ASNs in the Routing Table: 113
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 322
Number of addresses announced to Internet: 2103301266
Equivalent to 125 /8s, 93 /16s and 212 /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: 145956
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71410
Total APNIC prefixes after maximum aggregation: 25231
APNIC Deaggregation factor: 2.83
Prefixes being announced from the APNIC address blocks: 70877
Unique aggregates announced from the APNIC address blocks: 31802
APNIC Region origin ASes present in the Internet Routing Table: 3773
APNIC Prefixes per ASN: 18.79
APNIC Region origin ASes announcing only one prefix: 1038
APNIC Region transit ASes present in the Internet Routing Table: 576
Average APNIC Region AS path length visible: 5.8
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 493759936
Equivalent to 29 /8s, 110 /16s and 45 /24s
Percentage of available APNIC address space announced: 84.1
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: 126788
Total ARIN prefixes after maximum aggregation: 66951
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 127098
Unique aggregates announced from the ARIN address blocks: 52753
ARIN Region origin ASes present in the Internet Routing Table: 13234
ARIN Prefixes per ASN: 9.60
ARIN Region origin ASes announcing only one prefix: 5116
ARIN Region transit ASes present in the Internet Routing Table: 1310
Average ARIN Region AS path length visible: 5.1
Max ARIN Region AS path length visible: 26
Number of ARIN addresses announced to Internet: 1013718933
Equivalent to 60 /8s, 108 /16s and 31 /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: 69262
Total RIPE prefixes after maximum aggregation: 40172
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 69139
Unique aggregates announced from the RIPE address blocks: 45757
RIPE Region origin ASes present in the Internet Routing Table: 13471
RIPE Prefixes per ASN: 5.13
RIPE Region origin ASes announcing only one prefix: 7008
RIPE Region transit ASes present in the Internet Routing Table: 2016
Average RIPE Region AS path length visible: 5.6
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 500430376
Equivalent to 29 /8s, 211 /16s and 246 /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: 27906
Total LACNIC prefixes after maximum aggregation: 6220
LACNIC Deaggregation factor: 4.49
Prefixes being announced from the LACNIC address blocks: 27912
Unique aggregates announced from the LACNIC address blocks: 14081
LACNIC Region origin ASes present in the Internet Routing Table: 1176
LACNIC Prefixes per ASN: 23.73
LACNIC Region origin ASes announcing only one prefix: 374
LACNIC Region transit ASes present in the Internet Routing Table: 192
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 73789968
Equivalent to 4 /8s, 101 /16s and 242 /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: 6127
Total AfriNIC prefixes after maximum aggregation: 1576
AfriNIC Deaggregation factor: 3.89
Prefixes being announced from the AfriNIC address blocks: 6513
Unique aggregates announced from the AfriNIC address blocks: 2644
AfriNIC Region origin ASes present in the Internet Routing Table: 312
AfriNIC Prefixes per ASN: 20.88
AfriNIC Region origin ASes announcing only one prefix: 88
AfriNIC Region transit ASes present in the Internet Routing Table: 69
Average AfriNIC Region AS path length visible: 5.7
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 20178432
Equivalent to 1 /8s, 51 /16s and 230 /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 1253 292 143 Videsh Sanchar Nigam Ltd. Aut
9583 1104 87 535 Sify Limited
4134 963 18167 389 CHINANET-BACKBONE
18101 952 201 32 Reliance Infocom Ltd Internet
23577 914 34 760 KRNIC
7545 821 198 102 TPG Internet Pty Ltd
9829 812 625 18 BSNL National Internet Backbo
24560 753 272 161 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 4180 3626 313 bellsouth.net, inc.
20115 1961 1474 676 Charter Communications
4323 1924 1049 388 Time Warner Telecom
1785 1736 714 137 AppliedTheory Corporation
7018 1528 5901 1059 AT&T WorldNet Services
6478 1397 281 255 AT&T Worldnet Services
2386 1288 641 942 AT&T Data Communications Serv
3356 1223 10979 438 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 470 578 6 Uni2 Autonomous System
3292 449 1904 396 TDC Tele Danmark
35805 385 40 5 United Telecom AS
3301 376 1412 308 TeliaNet Sweden
9198 359 138 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 2254 336 93 Telecom Argentina Stet-France
8151 1474 2899 241 Uninet S.A. de C.V.
10620 1012 226 97 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
7738 441 862 30 Telecomunicacoes da Bahia S.A
11172 441 99 70 Alestra
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 992 188 7 TEDATA
24863 937 95 54 LINKdotNET AS number
20858 296 34 6 EgyNet
3741 275 856 236 The Internet Solution
2018 211 180 142 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
29571 139 14 6 Ci Telecom Autonomous system
24835 131 46 9 RAYA Telecom - Egypt
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 4180 3626 313 bellsouth.net, inc.
7303 2254 336 93 Telecom Argentina Stet-France
20115 1961 1474 676 Charter Communications
4323 1924 1049 388 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 1528 5901 1059 AT&T WorldNet Services
8151 1474 2899 241 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 2254 2161 Telecom Argentina Stet-France
1785 1736 1599 AppliedTheory Corporation
4323 1924 1536 Time Warner Telecom
17488 1554 1451 Hathway IP Over Cable Interne
20115 1961 1285 Charter Communications
8151 1474 1233 Uninet S.A. de C.V.
6478 1397 1142 AT&T Worldnet Services
4766 1566 1139 Korea Telecom (KIX)
4755 1253 1110 Videsh Sanchar Nigam Ltd. Aut
11492 1120 1108 Cable One
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 /15:1190 /16:10674 /17:4915 /18:8469
/19:17539 /20:20867 /21:20905 /22:27890 /23:27091 /24:156352
/25:828 /26:1046 /27:517 /28:459 /29:710 /30:816
/31:3 /32:313
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2709 4180 bellsouth.net, inc.
7303 1752 2254 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 977 1961 Charter Communications
4323 969 1924 Time Warner Telecom
9583 956 1104 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 12:2151 13:7 15:21 16:3
17:5 20:36 24:1159 32:151 34:2 38:601
40:97 41:1714 43:1 44:2 47:24 52:6
55:2 56:2 57:38 58:607 59:612 60:463
61:961 62:1139 63:2029 64:3641 65:2398 66:3470
67:1776 68:979 69:2738 70:561 71:174 72:1699
73:2 74:1742 75:182 76:321 77:866 78:585
79:380 80:929 81:822 82:571 83:433 84:646
85:1054 86:383 87:677 88:370 89:1477 90:48
91:2519 92:398 93:1141 94:1163 95:953 96:166
97:269 98:272 99:30 109:2 110:191 111:417
112:129 113:150 114:246 115:314 116:1144 117:577
118:322 119:775 120:121 121:660 122:1251 123:761
124:1058 125:1360 128:224 129:220 130:174 131:420
132:75 133:9 134:173 135:42 136:225 137:161
138:171 139:96 140:443 141:125 142:386 143:334
144:381 145:49 146:391 147:158 148:532 149:291
150:207 151:186 152:210 153:160 154:2 155:277
156:168 157:306 158:112 159:351 160:291 161:164
162:270 163:164 164:276 165:525 166:474 167:368
168:710 169:167 170:511 171:42 172:2 173:408
174:332 175:1 178:1 180:15 182:1 186:150
187:181 188:754 189:694 190:3460 192:5812 193:4390
194:3411 195:2889 196:1132 198:3559 199:3355 200:5460
201:1436 202:7832 203:8282 204:3895 205:2301 206:2406
207:2740 208:3959 209:3417 210:2547 211:1135 212:1644
213:1711 214:171 215:33 216:4339 217:1334 218:414
219:454 220:1116 221:460 222:322
End of report