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

* 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.