Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 10274958 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	Apr 2003 Count*	Apr 2003 %	Mar 2003 Count*	Mar 2003 %	Growth %
uu.net	418,765	4.08	398,589	4.11	-0.90
verio.net	379,223	3.69	464,396	4.79	-22.97
city-guide.com	290,467	2.83	7,851	0.08	3389.83
sprintlink.net	217,155	2.11	156,626	1.62	30.78
schlund.de	208,474	2.03	231,459	2.39	-15.04
lacnic.net	167,321	1.63	159,167	1.64	-0.84
pnap.net	149,707	1.46	92,814	0.96	52.15
above.net	139,268	1.36	136,448	1.41	-3.72
ns.dns.br	131,005	1.27	124,722	1.29	-0.92
att.net	122,008	1.19	116,191	1.20	-0.95
level3.net	120,595	1.17	120,561	1.24	-5.65
exodus.net	111,460	1.08	116,118	1.20	-9.46
ev1.net	105,831	1.03	96,519	1.00	3.43
xlink.net	103,336	1.01	97,844	1.01	-0.38
interland.net	97,182	0.95	95,121	0.98	-3.63
about.com	92,335	0.90	87,471	0.90	-0.43
qwest.net	92,185	0.90	97,239	1.00	-10.58
cogentco.com	81,370	0.79	75,776	0.78	1.29
tera-byte.com	79,864	0.78	76,305	0.79	-1.27
secure.net	74,860	0.73	73,875	0.76	-4.42
cw.net	73,685	0.72	80,711	0.83	-13.89
rackspace.com	69,391	0.68	69,637	0.72	-6.01
earthlink.net	69,296	0.67	67,940	0.70	-3.79
alabanza.com	69,057	0.67	67,646	0.70	-3.71
tpsa.pl	64,085	0.62	80,066	0.83	-24.50
infoseek.co.jp	53,542	0.52	47,005	0.48	7.44
he.net	52,360	0.51	79,451	0.82	-37.84
hosting4u.net	52,077	0.51	109,311	1.13	-55.06
yahoo.com	50,624	0.49	39,654	0.41	20.42
dn.net	49,920	0.49	87,441	0.90	-46.15
dialtoneinternet.net	48,210	0.47	58,829	0.61	-22.70
bellsouth.net	47,328	0.46	29,667	0.31	50.48
lycos.com	45,152	0.44	42,020	0.43	1.36
homestead.com	44,433	0.43	41,672	0.43	0.58
demon.co.uk	42,166	0.41	42,905	0.44	-7.30
pair.com	42,119	0.41	41,344	0.43	-3.91
nac.net	41,643	0.41	37,646	0.39	4.34
dtag.de	41,502	0.40	42,505	0.44	-7.90
concentric.net	41,227	0.40	41,719	0.43	-6.79
pbi.net	39,223	0.38	39,888	0.41	-7.25
ig.com.br	38,730	0.38	36,304	0.37	0.63
algx.net	38,022	0.37	37,024	0.38	-3.13
tele.dk	37,579	0.37	36,522	0.38	-2.94
splitinfinity.net	36,713	0.36	34,181	0.35	1.31
cwie.net	33,965	0.33	174,545	1.80	-81.64
gtei.net	33,789	0.33	35,964	0.37	-11.38
pri-dns.de	33,685	0.33	29,619	0.31	7.27
interbusiness.it	33,388	0.32	32,730	0.34	-3.78
datasync.com	32,994	0.32	30,835	0.32	0.93
rt.ru	30,991	0.30	18,917	0.20	54.53
cnc.ac.cn	30,118	0.29	28,913	0.30	-1.74
eli.net	26,680	0.26	25,596	0.26	-1.68
theplanet.com	26,413	0.26	19,078	0.20	30.59
telus.com	26,161	0.25	2,615	0.03	843.66
valueweb.net	25,834	0.25	34,436	0.36	-29.24
maxim.net	25,516	0.25	29,749	0.31	-19.10
rain.fr	23,841	0.23	22,944	0.24	-1.99
ocn.ad.jp	22,705	0.22	21,622	0.22	-0.95
siteprotect.com	22,192	0.22	31,582	0.33	-33.72
org.pl	22,104	0.22	602	0.01	3363.43
savvis.net	21,796	0.21	22,464	0.23	-8.48
gngidc.net	21,752	0.21	15,500	0.16	32.37
gblx.net	21,413	0.21	22,595	0.23	-10.61
cihost.com	21,071	0.21	20,841	0.22	-4.63
affinity.com	20,850	0.20	24,692	0.25	-20.35
host4u.net	20,422	0.20	46,044	0.48	-58.16
localhost	20,150	0.20	16,216	0.17	17.21
aitcom.net	20,061	0.20	20,067	0.21	-5.70
meganameservers.com	19,883	0.19	18,739	0.19	0.08
pipex.net	19,613	0.19	19,282	0.20	-4.05
pick.net	19,281	0.19	19,364	0.20	-6.08
hopone.net	19,068	0.19	1,882	0.02	855.69
telia.com	18,866	0.18	19,096	0.20	-6.81
peer1.net	18,626	0.18	16,743	0.17	4.93
theplanet.net	18,605	0.18	18,106	0.19	-3.07
bellglobal.com	18,345	0.18	17,492	0.18	-1.07
burst.net	18,184	0.18	18,095	0.19	-5.21
ip-plus.net	18,127	0.18	18,213	0.19	-6.12
inflow.net	18,025	0.18	17,849	0.18	-4.74
harvard.net	18,009	0.18	18,595	0.19	-8.65
jomax.net	17,878	0.17	14,213	0.15	18.65
kornet.net	17,863	0.17	16,841	0.17	0.05
9netave.com	17,436	0.17	17,639	0.18	-6.76
uunet.ca	17,397	0.17	16,681	0.17	-1.63
easynet.co.uk	17,311	0.17	19,536	0.20	-16.42
register.com	16,985	0.17	19,703	0.20	-18.69
dreamhost.com	16,935	0.16	15,892	0.16	0.52
ipowerweb.net	16,578	0.16	13,627	0.14	14.75
aunet.net	16,507	0.16	16,305	0.17	-4.51
cerf.net	16,228	0.16	20,840	0.22	-26.55
sta.net.cn	16,203	0.16	15,582	0.16	-1.91
interq.or.jp	16,129	0.16	14,902	0.15	2.09
twnic.net	16,005	0.16	15,229	0.16	-0.87
dv2.net	15,832	0.15	8,885	0.09	68.08
swbell.net	15,775	0.15	15,409	0.16	-3.43
sphere.ad.jp	15,597	0.15	14,557	0.15	1.07
ns.embratel.net.br	15,565	0.15	15,455	0.16	-5.00
web2010.com	15,406	0.15	15,533	0.16	-6.45
bsdhost.net	15,045	0.15	13,876	0.14	2.27
twtelecom.net	14,827	0.14	13,326	0.14	4.95
rr.com	14,702	0.14	14,639	0.15	-5.27
datapipe.net	14,649	0.14	24,701	0.25	-44.06
in2net.com	14,567	0.14	13,383	0.14	2.67
addr.com	14,539	0.14	13,521	0.14	1.43
psi.ca	14,360	0.14	13,415	0.14	0.97
namespace4you.de	14,169	0.14	12,891	0.13	3.68
conepuppy.com	13,971	0.14	12,049	0.12	9.37
abac.com	13,948	0.14	13,414	0.14	-1.92
dion.ne.jp	13,727	0.13	12,828	0.13	0.94
sfl.net	13,471	0.13	12,703	0.13	0.03
dacom.co.kr	13,405	0.13	12,858	0.13	-1.66
vonoc.net	13,309	0.13	12,079	0.12	3.93
ripn.net	13,074	0.13	11,862	0.12	3.96
nacamar.net	12,953	0.13	12,626	0.13	-3.23
netsol.com	12,802	0.12	11,593	0.12	4.16
ttd.net	12,735	0.12	12,855	0.13	-6.55
4ph.com	12,579	0.12	12,060	0.12	-1.61
tierra.net	12,453	0.12	12,004	0.12	-2.15
netnation.com	12,437	0.12	12,004	0.12	-2.27
kidc.net	12,405	0.12	12,043	0.12	-2.84
broadwing.net	12,348	0.12	11,767	0.12	-1.02
vuurwerk.nl	12,234	0.12	12,347	0.13	-6.54
tac.net	12,204	0.12	32,142	0.33	-64.19
newaccount.com	12,182	0.12	12,113	0.12	-5.14
guangzhou.gd.cn	12,099	0.12	11,255	0.12	1.40
mtu.ru	11,936	0.12	12,086	0.12	-6.84
softcomca.com	11,923	0.12	11,519	0.12	-2.37
energis.pl	11,768	0.11	196	0.00	5563.42
vcommerce.com	11,544	0.11	11,157	0.12	-2.40
sunrise.ch	11,515	0.11	11,927	0.12	-8.93
aspadmin.com	11,510	0.11	11,373	0.12	-4.54
idc.ad.jp	11,345	0.11	11,399	0.12	-6.12
masterhost.ru	11,273	0.11	9,895	0.10	7.46
national-net.com	11,210	0.11	11,252	0.12	-6.03
coop.net	11,100	0.11	118	0.00	8773.05
hinet.net	10,992	0.11	10,620	0.11	-2.37
bt.net	10,846	0.11	10,776	0.11	-5.06
sakura.ad.jp	10,829	0.11	10,015	0.10	1.99
tiscali.nl	10,826	0.11	10,915	0.11	-6.44
vdi.net	10,791	0.11	14,638	0.15	-30.46
global.net.uk	10,667	0.10	10,347	0.11	-2.76
psi.net	10,612	0.10	12,688	0.13	-21.11
uni2.net	10,394	0.10	10,718	0.11	-8.53
netfire.com	10,315	0.10	9,996	0.10	-2.66
dellhost.com	10,253	0.10	10,581	0.11	-8.60
powersurge.net	10,222	0.10	10,935	0.11	-11.82
fastnameserv.com	10,203	0.10	11,843	0.12	-18.74
speakeasy.net	9,824	0.10	9,205	0.09	0.67
crystaltech.com	9,666	0.09	8,987	0.09	1.45
xs4all.nl	9,616	0.09	9,187	0.09	-1.27
metronet.ca	9,594	0.09	8,478	0.09	6.74
gldn.net	9,543	0.09	9,966	0.10	-9.68
tmag.de	9,322	0.09	8,219	0.08	6.98
nameservers.net	9,230	0.09	8,784	0.09	-0.88
boca15-verio.com	9,178	0.09	9,233	0.10	-6.24
california.net	9,029	0.09	8,870	0.09	-3.98
mcbone.net	8,937	0.09	8,372	0.09	0.69
netservers.net	8,934	0.09	9,299	0.10	-9.38
oklahoma.net	8,913	0.09	8,396	0.09	0.13
telstra.net	8,813	0.09	8,362	0.09	-0.59
pajo.com	8,753	0.09	8,321	0.09	-0.78
netcom.ca	8,695	0.08	8,884	0.09	-7.68
likewhoa.com	8,609	0.08	7,817	0.08	3.88
servepath.com	8,606	0.08	8,196	0.08	-0.96
vwh1.net	8,597	0.08	9,553	0.10	-15.11
u-net.net	8,524	0.08	7,977	0.08	0.79
candidhosting.com	8,505	0.08	8,457	0.09	-5.14
advancedaccess.com	8,503	0.08	8,487	0.09	-5.50
teleglobe.net	8,486	0.08	18,214	0.19	-56.05
fast.net	8,481	0.08	8,340	0.09	-4.08
cybercity.dk	8,471	0.08	8,197	0.08	-2.52
nl.net	8,455	0.08	8,430	0.09	-5.39
iunet.it	8,439	0.08	8,119	0.08	-1.96
wnclientroot.com	8,176	0.08	6,928	0.07	11.32
cpsoftwaregroup.com	8,150	0.08	7,784	0.08	-1.24
unitedcolo.net	8,143	0.08	4,712	0.05	63.01
gxn.net	7,941	0.08	9,300	0.10	-19.46
newedgenetworks.com	7,923	0.08	7,662	0.08	-2.46
internet-dns.net	7,867	0.08	7,875	0.08	-5.77
netgate.net.nz	7,704	0.07	7,384	0.08	-1.59
colt.net	7,675	0.07	16,516	0.17	-56.17
viawest.net	7,671	0.07	11,750	0.12	-38.42
oleane.net	7,623	0.07	7,402	0.08	-2.86
firstserver.ne.jp	7,441	0.07	7,114	0.07	-1.34
inet.it	7,425	0.07	8,566	0.09	-18.24
hrnoc.net	7,332	0.07	6,683	0.07	3.49
mach10hosting.com	7,325	0.07	6,931	0.07	-0.31
voyager.net	7,222	0.07	5,608	0.06	21.47
0catch.com	7,088	0.07	6,275	0.06	6.55
netaxs.com	7,039	0.07	6,914	0.07	-3.97
ippro.net	6,934	0.07	6,275	0.06	4.23
interliant.com	6,875	0.07	6,190	0.06	4.76
mex.ad.jp	6,848	0.07	6,394	0.07	1.02
intermedia.net	6,809	0.07	6,742	0.07	-4.74
digiweb2.dk	6,790	0.07	6,749	0.07	-5.10
chinanetcenter.com	6,764	0.07	16,305	0.17	-60.87
swip.net	6,710	0.07	6,636	0.07	-4.62
ipworldcom.ca	6,681	0.07	6,501	0.07	-3.06
ns.nic.mx	6,678	0.06	6,351	0.07	-0.82
bluegravity.com	6,672	0.06	6,553	0.07	-3.96
dknet.dk	6,663	0.06	6,835	0.07	-8.05
uk2net.com	6,554	0.06	19,484	0.20	-68.27
isdnet.net	6,536	0.06	6,581	0.07	-6.32
globix.net	6,529	0.06	9,655	0.10	-36.21
idx.net	6,526	0.06	7,165	0.07	-14.09
cent.net	6,475	0.06	6,056	0.06	0.85
ns1	6,366	0.06	9,215	0.10	-34.84
mindspring.net	6,328	0.06	6,165	0.06	-3.18
stargate.net	6,288	0.06	6,089	0.06	-2.59
atworks.co.jp	6,208	0.06	5,879	0.06	-0.40
gaoland.net	6,177	0.06	5,890	0.06	-1.08
covad.net	6,166	0.06	5,382	0.06	8.07
readyhosting.com	6,146	0.06	6,106	0.06	-5.06
ikp.pl	6,100	0.06	4,060	0.04	41.72
web1000.com	6,008	0.06	5,608	0.06	1.05
yipes.com	6,007	0.06	6,985	0.07	-18.88
t-online.de	5,951	0.06	5,543	0.06	1.27
sprint-canada.net	5,949	0.06	5,529	0.06	1.49
lasvegas.net	5,931	0.06	5,717	0.06	-2.14
rnc.ro	5,857	0.06	5,787	0.06	-4.53
bur-ns1-ms	5,681	0.06	5,810	0.06	-7.77
ocn.ne.jp	5,661	0.06	5,332	0.06	0.15
ntli.net	5,658	0.06	5,460	0.06	-2.25
bt.co.uk	5,654	0.06	5,548	0.06	-3.87
terra.com.br	5,650	0.05	5,423	0.06	-1.73
wcg.net	5,648	0.05	5,821	0.06	-8.48
ampira.com	5,646	0.05	325	0.00	1538.66
edu.pl	5,588	0.05	5,859	0.06	-10.04
hosteurope.de	5,570	0.05	9,779	0.10	-46.27
internetive.net	5,551	0.05	5,545	0.06	-5.57
sbcglobal.net	5,470	0.05	4,986	0.05	3.48
cnc171.net	5,469	0.05	5,076	0.05	1.63
onvoy.net	5,460	0.05	5,349	0.06	-3.72
zf.net	5,446	0.05	5,345	0.06	-3.89
imconline.net	5,428	0.05	5,468	0.06	-6.36
accretivetg.net	5,398	0.05	5,180	0.05	-1.70
terraempresas.com.br	5,398	0.05	5,207	0.05	-2.21
your-site.com	5,380	0.05	5,090	0.05	-0.30
btwebworld.com	5,317	0.05	5,211	0.05	-3.76
nwrks.net	5,311	0.05	4,955	0.05	1.10
inet.fi	5,309	0.05	5,113	0.05	-2.06
sprintnetops.net	5,254	0.05	5,164	0.05	-4.03
relcom.ru	5,253	0.05	4,126	0.04	20.09
xcite.net	5,241	0.05	5,399	0.06	-8.43
connect.com.au	5,236	0.05	5,057	0.05	-2.34
inetu.net	5,222	0.05	5,112	0.05	-3.64
cais.com	5,190	0.05	5,202	0.05	-5.89
ai.net	5,184	0.05	4,570	0.05	7.00
westnet.net	5,165	0.05	5,267	0.05	-7.50
polbox.pl	5,129	0.05	5,153	0.05	-6.11

* 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.