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ISP Report
April 1st, 2007

Report Description
The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 24834852 web servers by the ISPs' networks over which their traffic flows, the report provides a view of the top ISPs on the Internet.

Purchase a list of web sites hosted on an ISPs' network:
  Enter ISP name (e.g. peer1) 
The following table lists the top 250 ISPs hosting the most servers on their networks.

ISP Domain Name Mar 2007
Count*
Mar 2007
%
Feb 2007
Count*
Feb 2007
%
Growth
%
theplanet.com970,7133.91901,8193.783.52
schlund.de910,4293.67900,0943.77-2.72
y.dns.jp651,0642.62637,3962.67-1.76
ev1servers.net539,9342.17547,3412.29-5.13
lacnic.net307,6151.24316,1261.32-6.42
secureserver.net281,3781.13268,1211.120.93
verio.net278,2461.12341,2251.43-21.58
dns.kr270,6081.09263,2651.10-1.14
rackspace.com265,5171.07255,1001.070.10
sakura.ad.jp220,9580.89223,6390.94-4.98
layeredtech.com218,9680.88201,6870.844.41
isprime.com216,8360.87161,7200.6828.95
a.in-addr.cn210,4230.85196,1940.823.15
pnap.net203,7920.82166,4470.7017.75
uu.net199,8150.80215,8480.90-10.97
a.dns.br192,9970.78203,6430.85-8.85
your-server.de165,0390.66146,6720.618.22
cogentco.com158,7250.64287,2461.20-46.86
ovh.net155,8550.63133,8270.5612.00
yahoo.com154,8680.62148,0870.620.58
savvis.net150,1080.60197,6980.83-26.98
dreamhost.com149,8460.60143,9020.600.15
nac.net148,1960.60135,0830.575.51
ipowerweb.net144,1620.58140,8280.59-1.55
att.net142,7370.57152,3020.64-9.87
level3.net141,3860.57139,6550.58-2.63
peer1.net140,6350.57143,7600.60-5.92
leaseweb.nl140,6340.57128,6310.545.15
technorail.com131,8180.53127,7340.53-0.75
proxad.net124,0100.50120,7420.51-1.22
guangzhou.gd.cn123,6860.50112,3940.475.84
cais.com108,6860.4497,7370.416.95
gnax.net106,1100.43104,4950.44-2.34
yourhostingaccount.com105,8730.43103,2800.43-1.41
secure.net101,2510.41100,3670.42-2.98
fasthosts.net.uk100,9570.41103,9210.44-6.57
localhost98,5110.4081,5610.3416.16
sprintlink.net97,3440.39110,3580.46-15.17
sta.net.cn97,1360.3997,1160.41-3.81
softlayer.com96,1970.3973,2910.3126.23
hosteurope.de92,9930.3788,6500.370.89
pair.com92,6480.3793,1290.39-4.32
interland.net92,3230.3792,3900.39-3.90
qwest.net91,4320.3792,9330.39-5.38
pwebtech.com89,0490.3685,9610.36-0.37
yandex.ru88,8620.3681,2310.345.21
pri-dns.de87,6460.3585,2570.36-1.13
fc2.com87,2040.3573,7000.3113.80
rz-ip.net84,2760.3478,6390.333.07
cncnet.net83,1170.3373,3330.319.01
dialtoneinternet.net79,9960.32159,4290.67-51.74
namespace4you.de77,5380.3174,3180.310.34
zjnbptt.net.cn76,7810.3167,1960.289.89
masterhost.ru76,4180.3171,6870.302.52
scservers.com75,4030.3076,3730.32-5.05
dns.fz.fj.cn74,0770.3067,8620.284.98
alabanza.com73,6680.3075,2330.31-5.83
eli.net71,3360.2965,3550.274.98
xlink.net71,0210.2939,6540.1772.25
intergenia.de70,6720.2870,9550.30-4.21
ipx-server.de70,2080.2870,1110.29-3.69
interq.or.jp69,0810.2866,0790.280.54
dimenoc.com69,0150.2868,6420.29-3.30
abac.com66,2220.2764,2990.27-0.95
ocn.ad.jp65,5380.2659,8360.255.34
geodns.net64,9140.2663,7610.27-2.09
3fn.net63,6730.2650,6480.2120.91
tpnet.pl62,9050.2555,1540.239.69
dtag.de61,4840.2560,8350.25-2.80
datapipe.net57,7790.2368,7190.29-19.14
fastservers.net56,9400.2348,7530.2012.32
usen.ad.jp56,6560.2352,0800.224.62
kasserver.com56,5950.2355,7390.23-2.35
cnc-idc.com56,2700.2348,8370.2010.81
twnic.net56,1510.2352,7480.222.38
rt-comm.ru55,8890.2344,1550.1821.73
lunarpages.com55,2470.2250,6080.214.99
nmc1.ptt.js.cn54,2900.2254,0170.23-3.34
tele.dk53,2890.2152,7750.22-2.89
liquidweb.com53,2880.2159,4010.25-13.72
managedsg-inc.com52,1770.2134,8030.1544.18
ns01.idc.jp51,6070.2148,7480.201.81
inode.at51,2260.2147,9790.202.68
twtelecom.net50,9760.2152,4600.22-6.55
hostway.net50,6680.2055,6240.23-12.39
rain.fr49,9890.2045,4890.195.69
home.pl49,8420.2046,3320.193.46
kornet.net49,4360.2051,3690.22-7.45
servint.com48,0310.1949,5180.21-6.71
hichina.com47,7780.1942,2160.188.84
bta.net.cn47,5120.1948,2030.20-5.20
bluehost.com46,5580.1942,1530.186.22
inetbone.net45,7030.1844,9260.19-2.16
pilosoft.com45,4380.1846,1780.19-5.37
b-one-dns.net45,3570.1842,5860.182.43
valueweb.net45,1120.1845,0230.19-3.64
sagonet.com44,6400.1843,7720.18-1.92
zipa.com44,6380.1863,3680.27-32.25
rr.com44,2810.1840,9190.174.08
cihost.com44,2450.1849,6780.21-14.34
afrinic.net43,9810.1844,6730.19-5.32
he.net43,3250.1746,4560.19-10.31
ipipe.net43,1200.1736,7580.1512.82
sphere.ad.jp41,3670.1740,6440.17-2.12
inflow.net41,2070.1760,6390.25-34.65
bluegravity.com41,1930.1752,4160.22-24.42
in2net.com40,8000.1638,7700.161.21
colt.net40,5650.1648,4900.20-19.54
net.ru39,5940.1637,4630.161.64
servidoresdns.net39,0100.1637,3920.160.34
lnhi.net38,6950.1637,6160.16-1.07
hananet.net38,1420.1538,5700.16-4.89
cn.net38,1330.1537,2420.16-1.53
aspadmin.com38,0980.1534,3740.146.59
iweb-hosting.com36,5200.1537,2540.16-5.72
mediatemple.net36,3540.1533,7810.143.50
dion.ne.jp36,2260.1534,3980.141.28
clara.net35,9220.1435,7360.15-3.33
casablanca.cz35,8510.1432,3200.146.68
sourcedns.com35,8100.1431,5460.139.17
backwoodsmedia.com35,6600.1420,5560.0966.84
xs4all.nl34,9830.1432,8730.142.35
atrivo.com34,7020.1431,0050.137.64
qsc.de33,7220.1431,0840.134.34
netart.pl33,2850.1330,4380.135.17
hbwhptt.net.cn33,1450.1325,0800.1127.10
interbusiness.it33,1220.1332,3270.14-1.46
dns2.xm.fj.cn32,9620.1333,0550.14-4.10
gxn.net32,7870.1328,2600.1211.58
webcontrolcenter.com32,3820.1337,4980.16-16.95
telecity.net32,2460.1325,1970.1123.08
swbell.net32,2010.1337,1080.16-16.54
phatservers.com32,0840.1331,9970.13-3.56
c.ns31,9310.1330,6740.130.12
interware.hu31,6090.1337,8600.16-19.71
primarydns.com31,2020.1334,9430.15-14.12
host4u.net31,1780.1333,6490.14-10.89
amenworld.com31,1200.1329,7430.120.63
bellsouth.net30,8470.1230,4220.13-2.48
servepath.com30,8170.1227,1220.119.28
donhost.co.uk30,6790.1230,1030.13-1.99
meganameservers.com30,2880.1238,6480.16-24.63
elinuxservers.com29,9110.1235,4290.15-18.80
iomart.co.uk29,5030.1229,1210.12-2.56
orbus.fr29,3370.121450.0019358.31
calpop.com29,3340.1240,4290.17-30.22
sippia.de29,2950.1243,8610.18-35.76
west-datacenter.net29,1400.1228,4660.12-1.55
above.net28,9910.1227,7860.120.34
telia.com28,8180.1227,3900.111.19
inhoster.com28,6310.1229,1730.12-5.61
hinet.net28,5130.1127,9570.12-1.91
proserve.nl28,4380.1126,5420.113.04
netnation.com28,0020.1127,8970.12-3.46
datanet.hu27,8670.1126,6180.110.69
netbenefit.co.uk27,3790.1126,1660.110.63
dn.net27,3200.1126,6010.11-1.23
deftechgroup.com27,2160.1127,2420.11-3.92
widexs.nl27,0510.1128,0930.12-7.39
earthlink.net26,8010.1149,3430.21-47.76
kidc.net26,7550.1126,3620.11-2.39
intercom.com.cn26,6740.1123,4730.109.29
hopone.net26,4630.1128,0240.12-9.18
burst.net26,3650.1131,8860.13-20.48
easynet.co.uk26,0980.1124,4810.102.53
pbi.net25,8200.1028,2190.12-12.00
anonymous-servers.com25,7480.1024,8710.10-0.43
ns-px.online.sh.cn25,5960.1020,4190.0920.56
rackforce.com25,5380.1025,5320.11-3.80
pipex.net24,9920.1028,1510.12-14.62
sdjnptt.net.cn24,8910.1023,9810.10-0.18
uk2.net24,8010.1026,7270.11-10.76
dnspro.de24,5930.1022,1610.096.73
iprevolution.co.jp24,2300.1021,6160.097.80
keyweb.de24,1840.1020,9590.0910.97
alchemyfx.com24,0740.1052,6460.22-56.02
mcbone.net24,0250.1023,2840.10-0.77
tmag.de23,8010.1023,3130.10-1.81
cnchost.com23,7210.1023,7450.10-3.92
xo.com23,7140.1059,5770.25-61.72
uslec.net23,6390.1041,5780.17-45.32
inet.it23,5240.0922,3300.091.32
uunet.ca23,4980.0924,0740.10-6.13
valuehost.ru23,4340.0921,8300.093.24
aitcom.net23,2500.0922,9630.10-2.62
server260.com23,0060.0922,3880.09-1.17
crystaltech.com22,8680.0918,3480.0819.87
spylog.com22,6840.0918,1540.0820.17
ip-plus.net22,6480.0922,5740.09-3.51
corbina.net22,6330.0922,6140.09-3.75
hosting.com22,5540.0935,2080.15-38.39
demon.co.uk22,4740.0922,4630.09-3.78
gldn.net22,3020.0925,6920.11-16.52
gyron.net22,1900.0921,5030.09-0.75
ctnt.com.cn22,0080.0914,4270.0646.71
untd.com21,9550.0916,1450.0730.78
kei.pl21,9540.0921,0380.090.36
forpsi.net21,8500.0918,1410.0815.84
webfusion.co.uk21,7470.0921,5880.09-3.12
as5587.net21,7330.0921,9660.09-4.85
cybercon.com21,6920.0988,6610.37-76.47
trouble-free.net21,6560.0921,5320.09-3.27
sc163.net21,5970.0900.000.00
fastdns.net21,5770.0922,8770.10-9.29
tera-byte.com21,4530.0920,6550.09-0.11
sw-core.net21,4530.0919,5910.085.31
4ph.com21,4400.0950,1450.21-58.88
hivelocity.net21,3490.0983,2760.35-75.34
speakeasy.net21,2890.0922,1140.09-7.41
vwh1.net21,2880.0921,4880.09-4.72
keyway.net21,2790.0919,2900.086.09
fastweb.it21,2110.0920,3700.090.14
pochta.ru21,1640.0915,7600.0729.15
server-dns.com21,1070.0820,9390.09-3.05
gblx.net21,0960.0831,0720.13-34.70
dynamicweb.net21,0070.0819,5260.083.47
futuro.pl20,8940.0820,5170.09-2.06
home.nl20,8110.0813,3620.0649.79
cox.net20,7200.0819,7730.080.78
national-net.com20,5470.0819,1950.082.95
ocn.ne.jp20,4890.0819,9100.08-1.03
fibercloud.com20,4810.0814,6120.0634.80
cnuninet.net20,1570.0819,5450.08-0.81
evanzo.com20,1550.0819,9270.08-2.73
sivit.org19,8080.0816,8250.0713.23
ttnet.net.tr19,6510.0818,7990.080.53
activeisp.com19,6010.0819,5120.08-3.39
hm2319,5410.0819,3060.08-2.66
bt.net19,5070.0824,3550.10-22.97
colo4dallas.net19,2460.0821,4970.09-13.90
enta.net19,1590.0819,1370.08-3.72
ieurop.net19,1560.0817,6040.074.65
tierra.net19,1050.0818,0320.081.90
ilse.net19,0640.0818,3010.080.18
infobox.org19,0490.0821,2590.09-13.82
dialtelecom.cz19,0450.082890.006237.83
lambdanet.net18,9380.0818,8240.08-3.24
dnsjunction.com18,9030.0818,4050.08-1.22
t-online.hu18,8320.0817,4300.073.91
westmaster.com18,7650.0813,1070.0537.69
ikp.pl18,5280.0718,3390.08-2.83
superb.net18,4320.0721,4520.09-17.37
alphared.com18,3440.0716,1370.079.33
globalcompass.com18,2290.0715,7010.0711.66
bell.ca18,0410.0717,0890.071.53
cnmobile.net17,9790.0716,1830.076.85
voxel.net17,9120.0722,1890.09-22.36
sbcidc.com17,8900.0719,0280.08-9.58
firstserver.ne.jp17,8090.0717,2780.07-0.87
v-ns.de17,6920.0717,0370.07-0.13

* An ISP is said to host a server if its name servers have control over the block of IP addresses that the server is in. Since a large ISP might delegate subnets to a smaller one, a single web server may be counted several times towards an ISP and its upstream providers.

Beginning with the February 2006 data set on which the March 1st, 2006 reports are based, a new algorithm was implemented for determining which webservers are assigned to which ISP. This new algorithm catches a significant number of servers which previously were unable to be assigned to an ISP.



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