Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 18449888 web servers by the ISPs' networks over which their traffic flows, the report provides a view of the top ISPs on the Internet.

ISP Domain Name	Feb 2006 Count*	Feb 2006 %	Jan 2006 Count*	Jan 2006 %	Growth %
schlund.de	715,386	3.88	701,197	3.88	0.01
theplanet.com	603,326	3.27	530,980	2.94	11.38
a.dns.jp	527,218	2.86	517,045	2.86	-0.04
ev1.net	487,395	2.64	170,073	0.94	180.93
verio.net	359,680	1.95	277,579	1.53	27.02
cogentco.com	281,043	1.52	133,459	0.74	106.43
lacnic.net	266,362	1.44	270,416	1.50	-3.44
dns.kr	253,024	1.37	257,235	1.42	-3.58
uu.net	226,571	1.23	210,090	1.16	5.72
rackspace.com	194,766	1.06	26,918	0.15	609.28
a.dns.br	175,371	0.95	180,563	1.00	-4.79
savvis.net	169,242	0.92	96,563	0.53	71.81
sprintlink.net	161,990	0.88	184,521	1.02	-13.94
pnap.net	149,726	0.81	142,759	0.79	2.81
att.net	142,266	0.77	132,687	0.73	5.10
level3.net	132,286	0.72	131,982	0.73	-1.75
dialtoneinternet.net	128,947	0.70	0	0.00	0.00
ns1.codetel.net.do	127,959	0.69	19	0.00	660087.00
secureserver.net	117,915	0.64	9,456	0.05	1122.39
peer1.net	114,543	0.62	69,986	0.39	60.44
ipowerweb.net	111,610	0.60	0	0.00	0.00
yahoo.com	111,536	0.60	1,934	0.01	5553.38
qwest.net	109,893	0.60	91,311	0.50	17.98
a.in-addr.cn	109,535	0.59	0	0.00	0.00
wsu.edu	108,148	0.59	745	0.00	14130.23
secure.net	108,019	0.59	91,429	0.51	15.82
sakura.ad.jp	107,405	0.58	99,912	0.55	5.38
ptd.net	100,208	0.54	1,613	0.01	5990.01
gnax.net	95,923	0.52	0	0.00	0.00
sta.net.cn	94,551	0.51	83,914	0.46	10.45
interland.net	93,511	0.51	78,806	0.44	16.32
technorail.com	89,113	0.48	86,408	0.48	1.10
fasthosts.net.uk	88,482	0.48	85,087	0.47	1.94
nac.net	83,583	0.45	35,274	0.20	132.28
alabanza.com	81,305	0.44	70,780	0.39	12.60
your-server.de	79,832	0.43	71,926	0.40	8.80
earthlink.net	77,865	0.42	30,713	0.17	148.52
pair.com	76,828	0.42	32,722	0.18	130.16
leaseweb.nl	76,563	0.41	66,812	0.37	12.33
usadatanet.net	76,307	0.41	0	0.00	0.00
agarik.com	73,748	0.40	58,357	0.32	23.88
dreamhost.com	72,282	0.39	0	0.00	0.00
pwebtech.com	72,150	0.39	0	0.00	0.00
layeredtech.com	69,401	0.38	16,839	0.09	304.02
proxad.net	69,111	0.37	61,568	0.34	10.04
tpnet.pl	67,352	0.37	60,777	0.34	8.63
datapipe.net	66,933	0.36	487	0.00	13372.90
guangzhou.gd.cn	65,154	0.35	61,977	0.34	3.05
abac.com	63,569	0.34	0	0.00	0.00
cybercon.com	62,795	0.34	0	0.00	0.00
rt.ru	62,117	0.34	62,967	0.35	-3.30
twtelecom.net	62,090	0.34	46,848	0.26	29.92
hosteurope.de	61,569	0.33	58,665	0.32	2.88
ovh.net	61,389	0.33	62,202	0.34	-3.25
pri-dns.de	61,319	0.33	59,311	0.33	1.35
xlink.net	59,303	0.32	25,449	0.14	128.43
concentric.net	59,136	0.32	33,310	0.18	74.03
cncnet.net	56,355	0.31	56,350	0.31	-1.96
iqtinc.com	56,273	0.31	0	0.00	0.00
liquidweb.com	56,038	0.30	1	0.00	5493187.84
hostway.net	54,824	0.30	0	0.00	0.00
namespace4you.de	54,580	0.30	52,631	0.29	1.66
eli.net	54,469	0.30	46,069	0.25	15.90
plusserver.de	53,935	0.29	51,547	0.29	2.57
tele.dk	53,714	0.29	52,743	0.29	-0.17
localhost	53,425	0.29	22,727	0.13	130.44
cihost.com	51,784	0.28	52,729	0.29	-3.73
inflow.net	51,445	0.28	22,671	0.13	122.44
dtag.de	51,236	0.28	50,263	0.28	-0.07
globix.net	51,108	0.28	10,144	0.06	393.89
yandex.ru	50,972	0.28	53,308	0.29	-6.27
geodns.net	50,308	0.27	38,622	0.21	27.69
yourhostingaccount.com	49,649	0.27	38,147	0.21	27.59
kornet.net	49,582	0.27	56,333	0.31	-13.72
masterhost.ru	49,507	0.27	45,220	0.25	7.32
ipx-server.de	48,808	0.26	46,718	0.26	2.41
he.net	48,677	0.26	0	0.00	0.00
ttuhsc.edu	48,569	0.26	0	0.00	0.00
xspedius.net	48,487	0.26	5,084	0.03	834.91
ocn.ad.jp	47,411	0.26	45,925	0.25	1.20
dns.fz.fj.cn	47,290	0.26	46,974	0.26	-1.31
interq.or.jp	47,020	0.25	45,814	0.25	0.61
valueweb.net	46,249	0.25	21,126	0.12	114.60
rz-ip.net	46,026	0.25	44,873	0.25	0.55
datasync.com	45,953	0.25	69,350	0.38	-35.04
colt.net	45,432	0.25	45,732	0.25	-2.62
lanlogic.net	44,534	0.24	82	0.00	53138.72
scservers.com	43,789	0.24	0	0.00	0.00
dimenoc.com	43,327	0.23	3,646	0.02	1064.91
sphere.ad.jp	42,608	0.23	37,212	0.21	12.24
above.net	42,277	0.23	42,582	0.24	-2.67
bluegravity.com	42,134	0.23	0	0.00	0.00
hananet.net	41,441	0.22	43,559	0.24	-6.74
alchemyfx.com	41,012	0.22	0	0.00	0.00
cnc-idc.com	40,909	0.22	39,532	0.22	1.44
cn.net	40,899	0.22	36,882	0.20	8.70
clara.net	40,762	0.22	40,809	0.23	-2.08
choopa.com	40,550	0.22	398	0.00	9887.52
voyager.net	40,383	0.22	2,695	0.01	1368.89
illinois.net	40,231	0.22	3,417	0.02	1054.16
cavtel.net	40,115	0.22	620	0.00	6242.56
servint.com	40,002	0.22	0	0.00	0.00
cais.com	39,314	0.21	27,729	0.15	38.98
zjnbptt.net.cn	39,259	0.21	21,948	0.12	75.35
dn.net	38,919	0.21	40,274	0.22	-5.27
host4u.net	38,706	0.21	0	0.00	0.00
4ph.com	38,157	0.21	0	0.00	0.00
enter.net	38,071	0.21	0	0.00	0.00
rain.fr	38,018	0.21	34,107	0.19	9.27
telus.com	37,730	0.20	11,023	0.06	235.53
interbusiness.it	37,329	0.20	37,141	0.21	-1.48
intelenet.net	36,950	0.20	0	0.00	0.00
twnic.net	36,806	0.20	34,895	0.19	3.40
lunarpages.com	36,556	0.20	5	0.00	716601.63
in2net.com	36,393	0.20	0	0.00	0.00
kasserver.com	36,300	0.20	34,436	0.19	3.33
gblx.net	35,418	0.19	16,524	0.09	110.12
usinternet.com	35,165	0.19	74	0.00	46483.13
inode.at	33,853	0.18	32,585	0.18	1.84
rr.com	33,777	0.18	21,723	0.12	52.42
smartnameservers.com	33,234	0.18	0	0.00	0.00
nmc1.ptt.js.cn	33,184	0.18	31,480	0.17	3.33
kidc.net	32,972	0.18	28,004	0.15	15.42
xs4all.nl	32,834	0.18	31,424	0.17	2.43
neonova.net	32,782	0.18	586	0.00	5383.88
lakeheadu.ca	32,770	0.18	0	0.00	0.00
ns01.idc.jp	32,674	0.18	23,479	0.13	36.42
uscuh.com	32,649	0.18	0	0.00	0.00
swbell.net	32,573	0.18	31,171	0.17	2.44
exobitnetworks.com	32,568	0.18	0	0.00	0.00
netriplex.com	32,403	0.18	0	0.00	0.00
webcontrolcenter.com	32,141	0.17	0	0.00	0.00
proserve.nl	31,730	0.17	23,094	0.13	34.69
westhawk.co.uk	31,585	0.17	0	0.00	0.00
pbi.net	31,155	0.17	29,053	0.16	5.12
inetbone.net	30,945	0.17	38,470	0.21	-21.15
sagonet.com	30,905	0.17	0	0.00	0.00
eschelon.com	30,826	0.17	910	0.01	3220.67
widexs.nl	30,730	0.17	30,247	0.17	-0.41
lambdanet.net	30,635	0.17	28,810	0.16	4.24
bta.net.cn	30,127	0.16	28,940	0.16	2.05
phatservers.com	29,530	0.16	0	0.00	0.00
cofs.com	29,474	0.16	0	0.00	0.00
coretel.net	29,407	0.16	0	0.00	0.00
fc2.com	29,342	0.16	0	0.00	0.00
bellsouth.net	29,306	0.16	28,836	0.16	-0.37
amenworld.com	29,184	0.16	28,062	0.16	1.95
hopone.net	28,930	0.16	0	0.00	0.00
gxn.net	28,894	0.16	24,455	0.14	15.82
burst.net	28,843	0.16	0	0.00	0.00
texasdns.com	28,773	0.16	0	0.00	0.00
btitelecom.net	28,491	0.15	47	0.00	59323.68
colosolutions.com	28,147	0.15	0	0.00	0.00
servidoresdns.net	27,671	0.15	27,005	0.15	0.45
primarydns.com	27,401	0.15	9,140	0.05	193.88
net.ru	27,245	0.15	25,525	0.14	4.63
tera-byte.com	27,188	0.15	0	0.00	0.00
aspadmin.com	26,946	0.15	0	0.00	0.00
lucsa.net	26,479	0.14	0	0.00	0.00
uk2.net	26,049	0.14	25,759	0.14	-0.87
powweb.com	25,984	0.14	0	0.00	0.00
telia.com	25,889	0.14	21,914	0.12	15.81
lnhi.net	25,755	0.14	0	0.00	0.00
nlayer.net	25,676	0.14	0	0.00	0.00
iomart.co.uk	25,588	0.14	25,317	0.14	-0.92
pa.net	25,583	0.14	0	0.00	0.00
vericenter.com	25,576	0.14	25,846	0.14	-3.00
dion.ne.jp	25,504	0.14	23,361	0.13	7.02
candidhosting.com	25,306	0.14	13,307	0.07	86.42
elinuxservers.com	24,861	0.13	0	0.00	0.00
asmgi.com	24,725	0.13	0	0.00	0.00
easynet.co.uk	24,702	0.13	24,075	0.13	0.58
webfusion.co.uk	24,471	0.13	23,706	0.13	1.19
uslec.net	24,466	0.13	15,509	0.09	54.64
b-one-dns.net	24,314	0.13	22,906	0.13	4.05
gldn.net	24,193	0.13	21,646	0.12	9.56
meganameservers.com	24,089	0.13	0	0.00	0.00
vanion.com	23,784	0.13	0	0.00	0.00
aitcom.net	23,716	0.13	7,956	0.04	192.21
netnation.com	23,339	0.13	0	0.00	0.00
home.pl	23,315	0.13	22,398	0.12	2.04
donhost.co.uk	23,034	0.12	21,889	0.12	3.16
hichina.com	23,019	0.12	3,627	0.02	522.14
ktc.com	23,003	0.12	30	0.00	75064.53
speakeasy.net	22,972	0.12	11,928	0.07	88.79
mcbone.net	22,943	0.12	22,366	0.12	0.56
nuvox.net	22,932	0.12	4,439	0.02	406.41
west-datacenter.net	22,931	0.12	0	0.00	0.00
interware.hu	22,927	0.12	22,946	0.13	-2.05
idir.net	22,814	0.12	0	0.00	0.00
chapel1.com	22,762	0.12	0	0.00	0.00
usen.ad.jp	22,669	0.12	21,217	0.12	4.74
expedient.com	22,628	0.12	112	0.00	19705.14
opentransfer.com	22,562	0.12	0	0.00	0.00
atrivo.com	22,412	0.12	0	0.00	0.00
sfl.net	22,124	0.12	9,140	0.05	137.28
demon.co.uk	22,022	0.12	21,057	0.12	2.52
propagation.net	22,020	0.12	23,796	0.13	-9.29
enta.net	21,845	0.12	21,515	0.12	-0.47
pilosoft.com	21,748	0.12	3,692	0.02	477.44
dsapollo.olympus	21,663	0.12	0	0.00	0.00
bellglobal.com	21,653	0.12	19,075	0.11	11.28
hinet.net	21,564	0.12	20,066	0.11	5.35
euroaccess.nl	21,432	0.12	21,318	0.12	-1.45
fastdns.net	21,397	0.12	0	0.00	0.00
telcove.net	21,210	0.11	878	0.00	2268.08
integraonline.com	21,199	0.11	2,742	0.02	657.88
affinity.com	21,187	0.11	196	0.00	10496.52
hivelocity.net	21,077	0.11	0	0.00	0.00
rcn.net	21,077	0.11	1,775	0.01	1064.02
anonymous-servers.com	20,828	0.11	0	0.00	0.00
tmag.de	20,514	0.11	18,269	0.10	10.07
eurekanetworks.net	20,466	0.11	0	0.00	0.00
novia.net	20,436	0.11	0	0.00	0.00
accentric.net	20,378	0.11	0	0.00	0.00
jtlnet.com	20,373	0.11	670	0.00	2880.78
sbcidc.com	20,311	0.11	10,947	0.06	81.88
ciberlynx.net	20,310	0.11	2,396	0.01	730.95
datanet.hu	20,294	0.11	17,535	0.10	13.45
bt.net	20,240	0.11	19,592	0.11	1.27
rackforce.com	19,994	0.11	0	0.00	0.00
3fn.net	19,954	0.11	123	0.00	15802.84
calpop.com	19,915	0.11	0	0.00	0.00
ip-plus.net	19,914	0.11	20,728	0.11	-5.82
fast.net	19,741	0.11	30	0.00	64405.63
servepath.com	19,578	0.11	0	0.00	0.00
fastservers.net	19,558	0.11	11,525	0.06	66.35
server-dns.com	19,551	0.11	19,249	0.11	-0.43
casablanca.cz	19,516	0.11	10,551	0.06	81.32
novani.com	19,349	0.10	94	0.00	20078.11
nacamar.net	19,271	0.10	19,070	0.11	-0.94
iweb-hosting.com	19,187	0.10	0	0.00	0.00
go180.net	19,054	0.10	0	0.00	0.00
ikp.pl	18,982	0.10	16,829	0.09	10.57
townisp.com	18,872	0.10	0	0.00	0.00
comcastbusiness.net	18,575	0.10	1,958	0.01	829.96
inet.it	18,383	0.10	18,350	0.10	-1.80
uunet.ca	18,269	0.10	16,459	0.09	8.81
corbina.net	18,219	0.10	18,025	0.10	-0.92
hiwaay.net	17,969	0.10	0	0.00	0.00
gmpcabletv.net	17,957	0.10	0	0.00	0.00
0.200.209	17,911	0.10	0	0.00	0.00
trueserver.nl	17,639	0.10	12,261	0.07	41.03
abovenet.de	17,579	0.10	14,860	0.08	15.96
web2010.com	17,354	0.09	0	0.00	0.00
mediatemple.net	17,353	0.09	0	0.00	0.00
svwh.net	17,343	0.09	12,010	0.07	41.56
futuro.pl	17,332	0.09	16,530	0.09	2.78
utransit.net	17,296	0.09	16,307	0.09	3.97
ripn.net	17,254	0.09	16,842	0.09	0.43

* 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.