Report Description

The ISP Market Share Report analyzes the distribution of web servers in our surveys across different ISPs. By classifying the 2975943 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	May 2001 Count*	May 2001 %	Apr 2001 Count*	Apr 2001 %	Growth %	Buy this ISP's customer list
uu.net	130,276	4.38	127,490	4.56	-4.07	$82.57  Contact Us
verio.net	86,486	2.91	124,310	4.45	-34.69	$68.24  Contact Us
sprintlink.net	60,002	2.02	56,023	2.01	0.55	$55.00  Contact Us
cw.net	57,393	1.93	56,146	2.01	-4.04	$53.70  Contact Us
demon.co.uk	44,587	1.50	49,595	1.78	-15.60	$44.59  Contact Us
att.net	37,805	1.27	35,504	1.27	-0.04	$37.80  Contact Us
above.net	36,686	1.23	35,639	1.28	-3.36	$36.69  Contact Us
exodus.net	36,097	1.21	49,526	1.77	-31.58	$36.10  Contact Us
schlund.de	33,824	1.14	44,976	1.61	-29.40	$33.82  Contact Us
ns.dns.br	27,466	0.92	25,963	0.93	-0.69	$27.47  Contact Us
dtag.de	24,975	0.84	23,234	0.83	0.91	$24.98  Contact Us
psi.net	22,179	0.75	25,267	0.90	-17.60	$22.18  Contact Us
interland.net	21,713	0.73	23,190	0.83	-12.10	$21.71  Contact Us
alabanza.com	20,701	0.70	23,444	0.84	-17.11	$20.70  Contact Us
digex.net	19,894	0.67	19,075	0.68	-2.09	$19.89  Contact Us
pbi.net	19,163	0.64	18,055	0.65	-0.36	$19.16  Contact Us
tpsa.pl	18,966	0.64	17,455	0.62	2.00	$18.97  Contact Us
telstra.net	18,697	0.63	17,549	0.63	0.02	$18.70  Contact Us
gblx.net	15,959	0.54	17,589	0.63	-14.82	$15.96  Contact Us
qwest.net	15,864	0.53	15,592	0.56	-4.48	$15.86  Contact Us
mindspring.net	14,930	0.50	13,807	0.49	1.51	$14.93  Contact Us
level3.net	14,785	0.50	15,847	0.57	-12.41	$14.79  Contact Us
interbusiness.it	14,292	0.48	13,896	0.50	-3.45	$14.29  Contact Us
lightrealm.net	13,774	0.46	15,180	0.54	-14.82	$13.77  Contact Us
nacamar.net	12,946	0.44	12,418	0.44	-2.13	$12.95  Contact Us
pair.com	11,510	0.39	17,517	0.63	-38.32	$11.51  Contact Us
9netave.com	11,380	0.38	15,126	0.54	-29.37	$11.38  Contact Us
about.com	11,077	0.37	11,338	0.41	-8.28	$11.08  Contact Us
earthlink.net	10,818	0.36	15,329	0.55	-33.75	$10.82  Contact Us
savvis.net	10,646	0.36	11,100	0.40	-9.96	$10.65  Contact Us
ip-plus.net	9,906	0.33	9,536	0.34	-2.48	$10.00  Contact Us
pipex.net	9,102	0.31	9,669	0.35	-11.63	$10.00  Contact Us
near.net	8,876	0.30	8,839	0.32	-5.73	$10.00  Contact Us
telia.com	8,489	0.29	8,852	0.32	-9.97	$10.00  Contact Us
home.net	8,188	0.28	7,232	0.26	6.29	$10.00  Contact Us
worldonline.nl	8,119	0.27	8,193	0.29	-6.97	$10.00  Contact Us
gtn.com	7,954	0.27	7,564	0.27	-1.28	$10.00  Contact Us
rain.fr	7,950	0.27	7,142	0.26	4.50	$10.00  Contact Us
nl.net	7,911	0.27	9,234	0.33	-19.57	$10.00  Contact Us
hosting4u.net	7,829	0.26	6,874	0.25	6.92	$10.00  Contact Us
uswest.net	7,640	0.26	8,112	0.29	-11.58	$10.00  Contact Us
cnc.ac.cn	7,488	0.25	6,033	0.22	16.52	$10.00  Contact Us
ttd.net	7,341	0.25	7,111	0.25	-3.09	$10.00  Contact Us
tele.dk	7,169	0.24	7,160	0.26	-6.00	$10.00  Contact Us
eli.net	6,957	0.23	6,717	0.24	-2.77	$10.00  Contact Us
vuurwerk.nl	6,917	0.23	6,857	0.25	-5.30	$10.00  Contact Us
theplanet.net	6,627	0.22	5,961	0.21	4.37	$10.00  Contact Us
tac.net	6,596	0.22	7,334	0.26	-15.57	$10.00  Contact Us
bellsouth.net	6,527	0.22	6,816	0.24	-10.10	$10.00  Contact Us
demos.su	6,277	0.21	6,149	0.22	-4.17	$10.00  Contact Us
u-net.net	5,622	0.19	4,987	0.18	5.83	$10.00  Contact Us
bt.net	5,542	0.19	5,313	0.19	-2.08	$10.00  Contact Us
oleane.net	5,463	0.18	5,030	0.18	1.96	$10.00  Contact Us
dns-host.com	5,439	0.18	4,779	0.17	6.84	$10.00  Contact Us
xlink.net	5,407	0.18	29,077	1.04	-82.54	$10.00  Contact Us
softaware.com	5,284	0.18	8,504	0.30	-41.67	$10.00  Contact Us
pnap.net	5,180	0.17	16,945	0.61	-71.30	$10.00  Contact Us
gxn.net	4,982	0.17	5,216	0.19	-10.33	$10.00  Contact Us
cais.com	4,976	0.17	5,198	0.19	-10.13	$10.00  Contact Us
onvoy.net	4,949	0.17	5,168	0.18	-10.10	$10.00  Contact Us
gtei.net	4,917	0.17	5,515	0.20	-16.30	$10.00  Contact Us
genuity.net	4,901	0.16	4,683	0.17	-1.75	$10.00  Contact Us
swip.net	4,894	0.16	4,770	0.17	-3.68	$10.00  Contact Us
xs4all.nl	4,839	0.16	4,758	0.17	-4.52	$10.00  Contact Us
bbnplanet.net	4,830	0.16	3,281	0.12	38.20	$10.00  Contact Us
concentric.net	4,724	0.16	12,775	0.46	-65.29	$10.00  Contact Us
uunet.ca	4,605	0.15	4,653	0.17	-7.09	$10.00  Contact Us
swbell.net	4,582	0.15	5,386	0.19	-20.14	$10.00  Contact Us
barrnet.net	4,514	0.15	4,493	0.16	-5.68	$10.00  Contact Us
espire.net	4,458	0.15	4,343	0.16	-3.64	$10.00  Contact Us
rnc.ro	4,359	0.15	4,958	0.18	-17.46	$10.00  Contact Us
bta.net.cn	4,338	0.15	3,991	0.14	2.04	$10.00  Contact Us
iunet.it	4,324	0.15	4,298	0.15	-5.55	$10.00  Contact Us
inetway.net	4,276	0.14	4,204	0.15	-4.51	$10.00  Contact Us
newaccount.com	4,199	0.14	6,528	0.23	-39.61	$10.00  Contact Us
interliant.com	4,041	0.14	11,027	0.39	-65.60	$10.00  Contact Us
twnic.net	3,973	0.13	3,705	0.13	0.67	$10.00  Contact Us
insinc.net	3,909	0.13	3,976	0.14	-7.70	$10.00  Contact Us
softcomca.com	3,886	0.13	3,588	0.13	1.67	$10.00  Contact Us
bellglobal.com	3,881	0.13	3,948	0.14	-7.72	$10.00  Contact Us
xara.net	3,837	0.13	3,468	0.12	3.87	$10.00  Contact Us
icg.net	3,792	0.13	4,466	0.16	-20.29	$10.00  Contact Us
roka.net	3,778	0.13	3,669	0.13	-3.33	$10.00  Contact Us
global-ip.net	3,710	0.12	3,567	0.13	-2.36	$10.00  Contact Us
easynet.co.uk	3,663	0.12	3,412	0.12	0.78	$10.00  Contact Us
coop.net	3,604	0.12	1,537	0.06	120.13	$10.00  Contact Us
netcom.net	3,576	0.12	4,206	0.15	-20.18	$10.00  Contact Us
ripn.net	3,564	0.12	3,235	0.12	3.43	$10.00  Contact Us
rcn.net	3,562	0.12	2,422	0.09	38.06	$10.00  Contact Us
broadwing.net	3,422	0.11	2,964	0.11	8.38	$10.00  Contact Us
bellatlantic.net	3,420	0.11	3,556	0.13	-9.71	$10.00  Contact Us
theplanet.com	3,409	0.11	4,320	0.15	-25.92	$10.00  Contact Us
fast.net	3,351	0.11	1,084	0.04	190.21	$10.00  Contact Us
gip.net	3,303	0.11	3,271	0.12	-5.20	$10.00  Contact Us
insnet.net	3,296	0.11	3,332	0.12	-7.14	$10.00  Contact Us
netgate.net.nz	3,156	0.11	3,036	0.11	-2.41	$10.00  Contact Us
valueweb.net	3,101	0.10	11,254	0.40	-74.13	$10.00  Contact Us
eu.net	3,081	0.10	3,009	0.11	-3.88	$10.00  Contact Us
tele.fi	3,052	0.10	2,964	0.11	-3.33	$10.00  Contact Us
host4u.net	3,045	0.10	23,679	0.85	-87.93	$10.00  Contact Us
is-europe.net	2,959	0.10	2,968	0.11	-6.41	$10.00  Contact Us
bt.co.uk	2,953	0.10	2,636	0.09	5.17	$10.00  Contact Us
uni2.net	2,921	0.10	3,550	0.13	-22.76	$10.00  Contact Us
westnet.net	2,902	0.10	2,825	0.10	-3.56	$10.00  Contact Us
ecore.net	2,872	0.10	2,871	0.10	-6.09	$10.00  Contact Us
oar.net	2,756	0.09	2,678	0.10	-3.39	$10.00  Contact Us
ecrc.de	2,689	0.09	2,793	0.10	-9.62	$10.00  Contact Us
crl.com	2,685	0.09	2,701	0.10	-6.68	$10.00  Contact Us
eni.net	2,683	0.09	2,795	0.10	-9.88	$10.00  Contact Us
hinet.net	2,682	0.09	3,772	0.14	-33.25	$10.00  Contact Us
globix.net	2,659	0.09	4,649	0.17	-46.31	$10.00  Contact Us
nap.net	2,653	0.09	2,875	0.10	-13.37	$10.00  Contact Us
ns.nic.mx	2,639	0.09	2,564	0.09	-3.38	$10.00  Contact Us
nameservers.net	2,636	0.09	13,142	0.47	-81.17	$10.00  Contact Us
utelfla.com	2,608	0.09	2,564	0.09	-4.51	$10.00  Contact Us
netaxs.com	2,562	0.09	2,677	0.10	-10.15	$10.00  Contact Us
ibm.net	2,534	0.09	2,515	0.09	-5.41	$10.00  Contact Us
gte.net	2,512	0.08	2,379	0.09	-0.87	$10.00  Contact Us
tip.net	2,460	0.08	2,518	0.09	-8.28	$10.00  Contact Us
cybercity.dk	2,453	0.08	2,283	0.08	0.87	$10.00  Contact Us
xodiax.com	2,430	0.08	2,126	0.08	7.30	$10.00  Contact Us
winstar.net	2,422	0.08	414	0.01	449.21	$10.00  Contact Us
ja.net	2,417	0.08	2,049	0.07	10.74	$10.00  Contact Us
mailbox.co.uk	2,409	0.08	2,221	0.08	1.82	$10.00  Contact Us
cableinet.net	2,403	0.08	2,506	0.09	-9.98	$10.00  Contact Us
relay.huji.ac.il	2,398	0.08	2,339	0.08	-3.75	$10.00  Contact Us
online.no	2,374	0.08	2,427	0.09	-8.17	$10.00  Contact Us
good.net	2,360	0.08	4,805	0.17	-53.89	$10.00  Contact Us
metronet.ca	2,305	0.08	2,860	0.10	-24.34	$10.00  Contact Us
cableol.net	2,271	0.08	2,137	0.08	-0.24	$10.00  Contact Us
sunrise.ch	2,271	0.08	2,371	0.08	-10.08	$10.00  Contact Us
relcom.ru	2,248	0.08	2,056	0.07	2.64	$10.00  Contact Us
ciberlynx.net	2,177	0.07	2,165	0.08	-5.60	$10.00  Contact Us
telenordia.se	2,173	0.07	2,206	0.08	-7.53	$10.00  Contact Us
sfl.net	2,121	0.07	2,237	0.08	-10.99	$10.00  Contact Us
dfn.de	2,107	0.07	2,063	0.07	-4.12	$10.00  Contact Us
harvard.net	2,106	0.07	2,314	0.08	-14.56	$10.00  Contact Us
univ-rennes1.fr	2,078	0.07	2,022	0.07	-3.52	$10.00  Contact Us
pajo.com	2,033	0.07	1,816	0.07	5.10	$10.00  Contact Us
spnet.net	1,999	0.07	2,254	0.08	-16.74	$10.00  Contact Us
ans.net	1,964	0.07	2,063	0.07	-10.63	$10.00  Contact Us
isdnet.net	1,961	0.07	2,047	0.07	-10.07	$10.00  Contact Us
connect.com.au	1,947	0.07	1,828	0.07	-0.01	$10.00  Contact Us
saix.co.za	1,903	0.06	2,063	0.07	-13.40	$10.00  Contact Us
secure.net	1,889	0.06	35,055	1.25	-94.94	$10.00  Contact Us
skyport.net	1,882	0.06	3,180	0.11	-44.44	$10.00  Contact Us
psi.ca	1,872	0.06	2,403	0.09	-26.87	$10.00  Contact Us
telepac.pt	1,856	0.06	1,911	0.07	-8.82	$10.00  Contact Us
eunet.no	1,853	0.06	1,730	0.06	0.55	$10.00  Contact Us
aitcom.net	1,843	0.06	13,836	0.50	-87.50	$10.00  Contact Us
space.net	1,830	0.06	1,974	0.07	-12.97	$10.00  Contact Us
rr.com	1,828	0.06	1,814	0.06	-5.40	$10.00  Contact Us
merit.net	1,819	0.06	1,754	0.06	-2.64	$10.00  Contact Us
fnsi.net	1,779	0.06	2,097	0.08	-20.36	$10.00  Contact Us
inet.it	1,749	0.06	2,266	0.08	-27.54	$10.00  Contact Us
netservers.net	1,725	0.06	6,163	0.22	-73.72	$10.00  Contact Us
gigabell.net	1,721	0.06	1,686	0.06	-4.17	$10.00  Contact Us
mspring.net	1,721	0.06	7,571	0.27	-78.66	$10.00  Contact Us
rt.ru	1,696	0.06	1,463	0.05	8.83	$10.00  Contact Us
sunet.se	1,694	0.06	1,677	0.06	-5.17	$10.00  Contact Us
westel.com	1,691	0.06	1,717	0.06	-7.54	$10.00  Contact Us
eunet.be	1,658	0.06	1,709	0.06	-8.92	$10.00  Contact Us
sprintnetops.net	1,628	0.05	1,566	0.06	-2.41	$10.00  Contact Us
telegate.se	1,622	0.05	1,579	0.06	-3.57	$10.00  Contact Us
123.209.in-addr.arpa	1,617	0.05	1,457	0.05	4.19	$10.00  Contact Us
idt.net	1,577	0.05	1,763	0.06	-16.03	$10.00  Contact Us
interlink.net	1,553	0.05	1,921	0.07	-24.11	$10.00  Contact Us
bluestar.net	1,535	0.05	1,402	0.05	2.78	$10.00  Contact Us
nasa.gov	1,513	0.05	1,619	0.06	-12.27	$10.00  Contact Us
virtualscape.com	1,503	0.05	2,333	0.08	-39.52	$10.00  Contact Us
sky.fr	1,499	0.05	1,416	0.05	-0.62	$10.00  Contact Us
ndh.net	1,495	0.05	2,155	0.08	-34.87	$10.00  Contact Us
seed.net.tw	1,495	0.05	1,908	0.07	-26.44	$10.00  Contact Us
ikp.pl	1,476	0.05	1,667	0.06	-16.88	$10.00  Contact Us
sci.fi	1,470	0.05	2,156	0.08	-35.99	$10.00  Contact Us
accentric.net	1,449	0.05	1,366	0.05	-0.42	$10.00  Contact Us
ln.net	1,443	0.05	1,438	0.05	-5.80	$10.00  Contact Us
dknet.dk	1,426	0.05	1,272	0.05	5.24	$10.00  Contact Us
tel.cz	1,426	0.05	1,321	0.05	1.34	$10.00  Contact Us
kolumbus.fi	1,424	0.05	1,400	0.05	-4.51	$10.00  Contact Us
scruz.net	1,420	0.05	1,584	0.06	-15.84	$10.00  Contact Us
dk.net	1,410	0.05	1,366	0.05	-3.10	$10.00  Contact Us
lrz-muenchen.de	1,406	0.05	1,353	0.05	-2.44	$10.00  Contact Us
fsu.edu	1,396	0.05	1,391	0.05	-5.78	$10.00  Contact Us
jaring.my	1,373	0.05	1,347	0.05	-4.31	$10.00  Contact Us
spectraweb.ch	1,355	0.05	1,393	0.05	-8.68	$10.00  Contact Us
rockymtn.net	1,325	0.04	1,436	0.05	-13.38	$10.00  Contact Us
is.co.za	1,323	0.04	1,403	0.05	-11.48	$10.00  Contact Us
mts.net	1,319	0.04	877	0.03	41.19	$10.00  Contact Us
eunet.cz	1,314	0.04	1,294	0.05	-4.67	$10.00  Contact Us
netvision.net.il	1,284	0.04	1,422	0.05	-15.23	$10.00  Contact Us
contactel.cz	1,278	0.04	1,452	0.05	-17.37	$10.00  Contact Us
twtelecom.net	1,277	0.04	2,057	0.07	-41.72	$10.00  Contact Us
colt.net	1,269	0.04	1,967	0.07	-39.44	$10.00  Contact Us
highwayone.net	1,249	0.04	1,346	0.05	-12.89	$10.00  Contact Us
rccn.net	1,248	0.04	1,227	0.04	-4.52	$10.00  Contact Us
mediaways.net	1,238	0.04	1,182	0.04	-1.67	$10.00  Contact Us
ttnet.net.tr	1,230	0.04	1,349	0.05	-14.40	$10.00  Contact Us
videotron.net	1,228	0.04	1,923	0.07	-40.05	$10.00  Contact Us
nettuno.it	1,226	0.04	1,402	0.05	-17.91	$10.00  Contact Us
agis.net	1,215	0.04	2,047	0.07	-44.28	$10.00  Contact Us
vdi.net	1,184	0.04	2,969	0.11	-62.56	$10.00  Contact Us
visi.com	1,183	0.04	1,724	0.06	-35.58	$10.00  Contact Us
ncren.net	1,155	0.04	1,153	0.04	-5.96	$10.00  Contact Us
best.com	1,155	0.04	6,045	0.22	-82.06	$10.00  Contact Us
darenet.dk	1,150	0.04	1,669	0.06	-35.31	$10.00  Contact Us
voyager.net	1,150	0.04	2,606	0.09	-58.57	$10.00  Contact Us
wirehub.net	1,137	0.04	1,290	0.05	-17.26	$10.00  Contact Us
ac.kr	1,134	0.04	2,447	0.09	-56.49	$10.00  Contact Us
ocn.ad.jp	1,130	0.04	7,181	0.26	-85.23	$10.00  Contact Us
univie.ac.at	1,118	0.04	1,105	0.04	-5.02	$10.00  Contact Us
crystaltech.com	1,117	0.04	1,149	0.04	-8.74	$10.00  Contact Us
dellhost.com	1,113	0.04	2,254	0.08	-53.64	$10.00  Contact Us
cihost.com	1,112	0.04	5,530	0.20	-81.12	$10.00  Contact Us
cybernet-ag.net	1,112	0.04	890	0.03	17.29	$10.00  Contact Us
belwue.de	1,107	0.04	1,010	0.04	2.89	$10.00  Contact Us
ttsg.com	1,098	0.04	1,234	0.04	-16.47	$10.00  Contact Us
rmplc.co.uk	1,096	0.04	1,181	0.04	-12.88	$10.00  Contact Us
euro.net	1,095	0.04	1,064	0.04	-3.39	$10.00  Contact Us
media3.net	1,092	0.04	2,380	0.09	-56.93	$10.00  Contact Us
stanford.edu	1,092	0.04	1,074	0.04	-4.55	$10.00  Contact Us
hispeedhosting.com	1,083	0.04	4,433	0.16	-77.07	$10.00  Contact Us
szptt.net.cn	1,070	0.04	1,361	0.05	-26.19	$10.00  Contact Us
eunet.fi	1,055	0.04	987	0.04	0.35	$10.00  Contact Us
imp.ch	1,019	0.03	953	0.03	0.38	$10.00  Contact Us
htdc.org	1,014	0.03	981	0.04	-2.96	$10.00  Contact Us
maxim.net	1,010	0.03	10,066	0.36	-90.58	$10.00  Contact Us
eenet.ee	1,007	0.03	959	0.03	-1.42	$10.00  Contact Us
unisource.nl	1,005	0.03	939	0.03	0.48	$10.00  Contact Us
114.252.193.in-addr.arpa	1,005	0.03	587	0.02	60.73	$10.00  Contact Us
ceti.pl	1,004	0.03	1,034	0.04	-8.85	$10.00  Contact Us
netlab.sk	1,000	0.03	762	0.03	23.20	$10.00  Contact Us
cent.net	990	0.03	891	0.03	4.31	$10.00  Contact Us
interq.or.jp	987	0.03	875	0.03	5.89	$10.00  Contact Us
netcorps.com	979	0.03	1,007	0.04	-8.73	$10.00  Contact Us
firstserver.ne.jp	969	0.03	843	0.03	7.91	$10.00  Contact Us
army.mil	952	0.03	1,042	0.04	-14.23	$10.00  Contact Us
dsl.net	945	0.03	1,110	0.04	-20.08	$10.00  Contact Us
aol.com	942	0.03	753	0.03	17.44	$10.00  Contact Us
bc.net	936	0.03	921	0.03	-4.59	$10.00  Contact Us
kpn.net	930	0.03	1,140	0.04	-23.42	$10.00  Contact Us
telia.net	925	0.03	92	0.00	843.88	$10.00  Contact Us
umn.edu	922	0.03	900	0.03	-3.83	$10.00  Contact Us
infoave.net	912	0.03	998	0.04	-14.21	$10.00  Contact Us
megapath.net	903	0.03	748	0.03	13.33	$10.00  Contact Us
uvm.dk	900	0.03	980	0.04	-13.79	$10.00  Contact Us
singnet.com.sg	897	0.03	922	0.03	-8.67	$10.00  Contact Us
isgate.is	896	0.03	955	0.03	-11.92	$10.00  Contact Us
tamu.edu	889	0.03	897	0.03	-6.96	$10.00  Contact Us
berkeley.edu	888	0.03	883	0.03	-5.59	$10.00  Contact Us

* 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.