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ISP Report
May 1st, 2005

Report Description
The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 15543659 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 Apr 2005
Count*
Apr 2005
%
Mar 2005
Count*
Mar 2005
%
Growth
%
schlund.de575,0423.70549,6603.77-1.74
a.dns.jp443,5592.85425,2182.91-2.03
theplanet.com403,9212.60293,4622.0129.27
verio.net296,6301.91282,8821.94-1.51
uu.net254,8481.64254,2301.74-5.85
dns.kr242,2031.56236,0721.62-3.64
lacnic.net242,0091.56222,6181.522.10
a.dns.br163,9561.05146,5891.005.05
sprintlink.net147,4060.95101,3380.6936.62
att.net133,4320.86128,7180.88-2.64
level3.net130,3640.84128,1950.88-4.49
cogentco.com94,0680.6183,9260.575.27
qwest.net92,7630.6091,7050.63-5.00
secure.net91,2590.5990,6590.62-5.46
pnap.net85,6280.5551,7470.3555.42
savvis.net82,6690.5379,8820.55-2.80
fasthosts.net.uk74,5780.4871,5360.49-2.08
above.net73,8930.4867,5980.462.67
alabanza.com73,5580.4773,8870.51-6.50
cnc.ac.cn70,3030.4564,2970.442.69
sta.net.cn66,4040.4363,1460.43-1.23
ovh.net64,7590.4259,4880.412.24
pri-dns.de64,3770.4159,8890.410.96
kornet.net63,4590.4166,1190.45-9.86
tpnet.pl63,0890.4156,8800.394.17
technorail.com60,9210.3958,0130.40-1.37
sakura.ad.jp58,3420.3851,0440.357.35
earthlink.net54,9250.3554,8430.38-5.94
colt.net54,0280.3545,5390.3111.43
cncnet.net52,5310.3449,7970.34-0.92
dtag.de51,5880.3350,8070.35-4.63
wcg.net50,2880.3241,8770.2912.79
yandex.ru50,0910.3241,7700.2912.63
twtelecom.net46,3760.3060,6680.42-28.20
guangzhou.gd.cn45,4410.2936,9210.2515.59
hosteurope.de43,1300.2841,0360.28-1.29
plusserver.de42,7370.2740,1070.270.08
tele.dk42,2350.2740,8600.28-2.92
rt.ru42,0120.2742,3900.29-6.92
dn.net41,5530.2737,8130.263.21
namespace4you.de41,1020.2639,4670.27-2.19
leaseweb.nl39,9910.2634,3540.249.33
ocn.ad.jp39,8250.2638,6010.26-3.10
datasync.com39,7990.268320.014392.76
interq.or.jp38,9250.2537,4210.26-2.30
hananet.net37,7750.2439,5250.27-10.24
dns.fz.fj.cn37,6520.2436,3760.25-2.78
your-server.de36,7820.2433,9500.231.76
interbusiness.it36,4250.2336,9320.25-7.37
ipx-server.de36,1470.2331,9050.226.41
eli.net36,1360.2331,6200.227.34
swbell.net34,5580.2231,5770.222.79
interland.net34,4260.2272,2980.50-55.28
clara.net34,0350.2235,6570.24-10.35
masterhost.ru33,8480.2228,6510.2010.96
webfusion.co.uk32,5160.2128,2670.198.04
cn.net32,4470.2126,6090.1814.53
pbi.net31,4280.2031,2610.21-5.58
cnc-idc.com30,8970.2029,6000.20-1.96
widexs.nl30,8630.2030,9050.21-6.21
twnic.net30,6690.2030,1970.21-4.61
rain.fr30,4180.2028,1590.191.46
pair.com29,9430.1929,5710.20-4.90
cihost.com29,4290.1926,8970.182.76
sphere.ad.jp29,1650.1927,9540.19-2.01
inode.at28,9440.1926,8330.181.31
uk2.net28,5840.1826,2770.182.17
proserve.nl28,3490.1827,0080.19-1.42
concentric.net28,0520.1828,1470.19-6.40
rz-ip.net27,5060.1824,6320.174.88
bellsouth.net26,9390.1726,8260.18-5.68
kidc.net26,6330.1727,0680.19-7.59
bta.net.cn26,4820.1719,0530.1330.54
yourhostingaccount.com26,2570.1718,7990.1331.18
readyhosting.com26,1160.1725,9540.18-5.49
xs4all.nl25,8360.1723,8850.161.59
zjhzptt.net.cn25,3400.1620,7280.1414.82
nac.net25,0460.1622,8780.162.82
localhost23,8980.1518,2940.1322.69
nmc1.ptt.js.cn23,7680.1522,4730.15-0.67
cais.com23,6190.1520,9390.145.94
valueweb.net22,8760.1522,9780.16-6.50
bsve.net22,6730.1522,5780.15-5.68
servidoresdns.net22,6320.1522,1040.15-3.84
amenworld.com22,6260.1520,7780.142.27
agarik.com22,5130.1416,8560.1225.44
mtu.ru22,4940.1422,5720.15-6.40
bt.net22,3010.1422,3700.15-6.37
inetbone.net22,1370.1427,5650.19-24.57
proxad.net22,1310.1461,8810.42-66.41
ns.embratel.net.br22,0890.1420,7200.140.13
lambdanet.net22,0530.1417,7830.1216.47
epidc.co.kr21,9590.1422,5520.15-8.55
rackspace.com21,3200.1413,9710.1043.33
geodns.net20,7560.1318,5820.134.91
ip-plus.net20,7200.1320,5300.14-5.21
inflow.net20,6860.1319,4350.13-0.03
isdnet.net20,6730.1317,7790.129.21
demon.co.uk20,6070.1317,4000.1211.23
nacamar.net20,3950.1321,1560.14-9.46
gldn.net20,2310.1320,3980.14-6.85
hinet.net20,2080.1319,8500.14-4.38
dion.ne.jp19,7260.1319,7420.14-6.15
enta.net19,7220.1319,5330.13-5.17
gxn.net19,2290.1215,6290.1115.56
donhost.co.uk19,2140.1219,1330.13-5.68
netgate.net.nz19,1880.1219,1120.13-5.71
peer1.net19,1790.1218,6640.13-3.49
iomart.co.uk18,8690.1213,0100.0936.22
mcbone.net18,7380.1218,1080.12-2.81
uol.com.br18,5950.1215,9270.119.65
server-dns.com18,5620.1218,4330.13-5.42
ripn.net18,3800.1218,1980.12-5.14
nameservers.net18,1670.1218,0610.12-5.53
telia.com18,0690.1217,3550.12-2.21
dacom.co.kr17,9630.1217,7430.12-4.91
rr.com17,9170.1216,8990.12-0.42
interware.hu17,8970.1215,3960.119.18
magic-moments.com17,8450.1117,7350.12-5.50
easynet.co.uk17,8180.1116,5780.110.95
gblx.net17,6200.1119,6350.13-15.72
pipex.net17,5400.1117,5380.12-6.07
fc2.com17,1380.1116,0410.110.34
tmag.de16,5580.1114,9750.103.85
home.pl16,5030.1116,8680.12-8.11
vuurwerk.nl16,4400.1116,3670.11-5.66
bellglobal.com16,1870.1014,7530.103.05
algx.net15,9870.1014,7450.101.83
hm2315,3780.1015,1270.10-4.52
softcomca.com15,2780.1015,1140.10-5.06
cerf.net15,2320.1014,8290.10-3.53
futuro.pl15,2230.1015,2680.10-6.36
kei.pl15,2060.1014,3850.10-0.72
addr.com15,1000.1015,0790.10-5.95
net.ru15,0070.1012,8740.099.48
b-one-dns.net14,9700.1014,1220.10-0.44
uslec.net14,8600.1014,6100.10-4.47
cnuninet.net14,3610.0914,8550.10-9.20
v-ns.de14,3240.0910,7640.0724.98
ladot.com14,2670.0914,0030.10-4.31
uunet.ca14,2370.0913,7440.09-2.71
valuehost.ru14,1850.0914,2550.10-6.54
dimenoc.com14,0430.091,4490.01810.24
euroaccess.nl13,9370.0910,0080.0730.79
isd-holland.nl13,9350.0913,5720.09-3.57
kasserver.com13,9040.0921,1050.14-38.12
corbina.net13,8590.0912,4540.094.52
xlink.net13,8390.0912,4630.094.29
usen.ad.jp13,7720.0912,1420.086.53
ig.com.br13,6740.094,4820.03186.54
komplex.net13,6560.0910,7600.0719.20
relcom.ru13,5020.0913,2230.09-4.10
cnc-idc.net13,1310.089,9030.0724.54
candidhosting.com13,1170.0812,5900.09-2.15
sserv.net13,1160.0812,8040.09-3.79
t-online.de12,9780.0812,5240.09-2.67
verio.de12,9550.0813,1100.09-7.19
sunrise.ch12,8470.0812,5500.09-3.86
swip.net12,7400.0812,5030.09-4.30
ameritech.net12,7340.0812,4830.09-4.19
ocn.ne.jp12,7300.0812,4560.09-4.01
evanzo.com12,6950.0811,3950.084.64
netbenefit.co.uk12,2270.0811,9300.08-3.74
ikp.pl12,1570.0811,9720.08-4.63
activeisp.com11,9910.0811,6330.08-3.19
covad.com11,8840.0812,7520.09-12.47
firstserver.ne.jp11,8120.0811,6580.08-4.84
gtei.net11,7200.0812,1120.08-9.12
inet.it11,7070.0815,7460.11-30.17
psi.net11,5250.0711,3380.08-4.53
mex.ad.jp11,5220.0711,1300.08-2.77
teamnet.net11,0610.076,3280.0464.17
force9.net10,9960.0710,7660.07-4.07
fastservers.net10,9430.075,6420.0482.17
home.nl10,9210.0710,5810.07-3.06
splitinfinity.net10,8920.075,6340.0481.57
ttd.net10,8660.0710,7940.07-5.45
gngidc.net10,8580.076,3440.0460.75
tac.net10,8510.0710,8630.07-6.18
hosting4u.net10,7380.0750.00201605.51
broadwing.net10,6470.078,0500.0624.22
cwidc.net10,5670.079,9600.07-0.35
iunet.it10,5530.0710,3340.07-4.09
maxim.net10,5520.0710,4740.07-5.38
uni2.net10,4030.0710,4730.07-6.71
primarydns.com10,3100.0710,2840.07-5.84
zenon.net10,2880.0710,0050.07-3.42
atworks.co.jp10,2850.0710,1090.07-4.44
secureserver.net10,1320.0710,0580.07-5.39
fastweb.it9,9780.069,9230.07-5.56
sprint-canada.net9,9160.0610,0500.07-7.33
oleane.net9,7670.069,5620.07-4.07
songnetworks.se9,7440.069,8530.07-7.12
phase8.net9,7030.068,6660.065.16
ns.nic.mx9,6440.069,5230.07-4.89
trueserver.nl9,6310.068,8100.062.67
hostpoint.ch9,6300.069,2620.06-2.35
coop.net9,6250.067,1990.0525.57
gandi.net9,5950.069,4900.07-5.04
net.edu.cn9,5580.069,4320.06-4.82
ns9,5340.069,4250.06-4.99
sdjnptt.net.cn9,4520.068,4330.065.27
prima.net.ar9,3310.068,7360.060.32
elassar.net9,2990.066,4930.0434.51
cableinet.net9,1440.068,8760.06-3.24
coxmail.com9,0880.068,8620.06-3.68
nstool.de9,0660.066,0560.0440.60
bit.nl9,0310.068,7140.06-2.66
globix.net9,0060.069,1430.06-7.49
aitcom.net9,0030.069,2740.06-8.82
forpsi.net8,9170.068,6510.06-3.19
iadvantage.net.hk8,8900.068,7900.06-5.01
pajo.com8,8460.068,8200.06-5.80
gatel.net8,7650.068,1440.061.08
idc.ad.jp8,7520.068,9860.06-8.52
wxs.nl8,7510.068,4160.06-2.34
rtcomm.ru8,7510.068,0500.062.10
svwh.net8,6960.066,7630.0520.77
cablecom.net8,6590.067,9200.052.68
nova.net.cn8,6320.068,0910.060.20
netizen.com.ar8,6190.068,5850.06-5.71
telekom.at8,6030.068,3650.06-3.41
iafrica.com8,5960.068,2880.06-2.59
datacenter1.com.br8,5240.058,4690.06-5.47
mycyberhosting.com8,4730.055,1220.0455.37
cybercity.dk8,4620.058,4290.06-5.71
westmaster.com8,4560.057,7930.051.91
euroconnect.dk8,4440.058,4980.06-6.68
tjantik.dk8,3650.058,3740.06-6.18
ntdns.de8,2290.055,1600.0449.78
newwebsite.com8,1730.057,7090.05-0.43
telstra.net8,1500.057,9810.05-4.09
datanet.hu8,0870.055,5740.0436.27
server-home.net8,0800.057,8440.05-3.25
server260.com8,0220.057,3850.052.02
newedgenetworks.com8,0160.057,6960.05-2.17
jay.net8,0090.057,7680.05-3.16
completel.fr7,9700.057,5440.05-0.78
active24.cz7,9590.057,4100.050.88
datacomm.ch7,9520.058,0850.06-7.62
interia.pl7,9510.055,1070.0346.22
newnet.co.uk7,9470.057,7350.05-3.50
seeweb.it7,9060.057,6820.05-3.34
ns4.de7,8770.057,7600.05-4.66
nl.net7,8270.057,9650.05-7.71
speedbone.de7,7280.054,3780.0365.79
is.co.za7,7250.057,6670.05-5.37
propagation.net7,7180.0511,4920.08-36.92
bt.com7,6940.057,7860.05-7.19
fastdns.de7,6670.056,7380.056.87

* 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.



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