Top 50 organizations with the largest IP allocations in Czech Republic

Name	IPv4 addresses	AS numbers
T-Mobile Czech Republic a.s.	1,686,400	6
O2 Czech Republic, a.s.	1,582,336	4
CESNET z.s.p.o.	848,896	2
PODA a.s.	221,184	3
BENESTRA, s.r.o.	206,848	1
Vodafone Czech Republic a.s.	174,592	2
Ceska Telekomunikacni Infrastruktura a.s	141,568	1
CD-Telematika a.s.	120,832	1
RIO Media a.s.	115,712	2
COMA s.r.o.	111,616	1
RADIOKOMUNIKACE a.s.	107,776	1
DHL Information Services (Europe) s.r.o	86,272	1
Ipex Ltd.	86,016	1
Casablanca INT	82,944	1
Libli s.r.o.	70,912	9
Brno University of Technology	68,096	3
SMART Comp. a.s.	67,584	1
Master Internet s.r.o.	64,000	1
CoProSys a.s.	60,160	1
Fortech s.r.o.	58,368	1
itself s.r.o.	57,856	1
ALFA TELECOM s.r.o.	52,736	1
ha-vel internet s.r.o.	50,688	2
STARNET, s.r.o.	49,408	1
INTERNET CZ, a.s.	45,568	1
Signalhorn Trusted Networks GmbH	44,800	1
TS-Data s.r.o.	41,984	1
ISP Alliance a.s.	36,864	8
InterneXt 2000, s.r.o.	33,792	1
Nordic Telecom s.r.o	32,768	1
Nej.cz s.r.o.	32,768	2
SuperNetwork s.r.o.	31,232	1
METRONET s.r.o.	24,064	1
Ignum s.r.o.	20,736	2
VSHosting s.r.o.	20,480	3
Telco Pro Services, a. s.	19,456	1
TTNET s.r.o.	19,456	1
LTD Objedinennaja Setevaja Kompanija	18,688	1
AVAST Software s.r.o.	17,920	4
FreeTel, s.r.o.	17,408	2
TechCom s.r.o.	17,408	1
IP4ISP z.s.p.o	17,408	1
JON.CZ s.r.o.	16,384	1
SELECT SYSTEM, s.r.o.	16,384	1
Kristelecom Ltd.	16,384	1
M-SOFT, spol. s r.o.	16,384	1
M.NET STUDENKA s. r. o.	16,384	1
AVONET, s.r.o.	15,360	1
WIA spol. s.r.o.	14,848	1
Edera Group a.s.	14,336	1

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