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Data as of Nov 6, 2026

178.238.32.0/20

No anonymizer space · no proxy exits in 30 days

MasterDC s.r.o.

Announcement
this exact prefix
RPKI valid
Announced by
AS24971
Type
Hosting
Risk
50 / 100 · Medium

Registrations in this block

The registry's network records over the announcement: those covering it, widest first, then every record inside it, under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
178.238.32.0/204,096CZ-MASTER-20100712MasterDC s.r.o. (ORG-MIS2-RIPE) · CZALLOCATED PAJul 12, 2010abuse@master.cz
└ 178.238.34.0/23512ETNETERA_1-CZ-MAIEtnetera Core a.s. (ORG-EA977-RIPE) · CZASSIGNED PAMay 25, 2011abuse@etnetera.cz
└ 178.238.36.0/24256DC1-4D-HOUSING-10-CZ-MAIMaster Internet s.r.o.ASSIGNED PAJun 7, 2011abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.37.0/2664sl544-1-CZ-MAI-HousingMasterDC s.r.o. (ORG-MIS2-RIPE) · CZASSIGNED PAFeb 7, 2022abuse@master.cz
└ 178.238.37.64/2732VALID-1-CZ-MAIOldrich Preiss - VALID serverhousing PrahaASSIGNED PAJun 27, 2011abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.37.96/2816TEAMPREVENT-1-MAI-CZTeamPrevent s.r.o. (ORG-TS465-RIPE)ASSIGNED PAApr 18, 2019martin.krist@teamprevent.cz
└ 178.238.37.128/2664sl536-HOUSING-1-CZ-MAIMasterDC s.r.o. (ORG-MIS2-RIPE) · CZASSIGNED PASep 9, 2025abuse@master.cz
└ 178.238.38.0/25128AIRA-GROUP-1-MAI-CZunknownASSIGNED PAJun 23, 2011abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.38.128/2732DANTEM-1-MAI-CZDANTEM s.r.o. (ORG-DS443-RIPE)ASSIGNED PAMar 26, 2020lukas.ledvinka@dantem.cz
└ 178.238.38.160/2732NUVON-CLOUD-1-CZ-MAINuvon Cloud s.r.o. (ORG-NCS52-RIPE)ASSIGNED PADec 8, 2025felipe@nuvon.io
└ 178.238.38.192/2664PRAHA-4D-VSPHERE-2-CZ-MAIMaster Internet s.r.o.ASSIGNED PAJul 29, 2011abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.39.0/25128BRNO-HOUSING32-CZ-MAIMaster Internet s.r.o.ASSIGNED PAMar 31, 2014abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.39.128/25128BRNO-CEJL-VSPHERE-VPS-6-CZ-MAIShared VPS MasterDC vCloudASSIGNED PAJan 28, 2026abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.40.0/24256BRNO-HOUSING21-CZ-MAIMaster Internet s.r.o.ASSIGNED PASep 14, 2011abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.41.24/298ENIC-1-CZ-MAIENIC s.r.o. (ORG-ES682-RIPE)ASSIGNED PAFeb 27, 2024abuse@master.cz
└ 178.238.41.32/2816AIRA-GROUP-3-MAI-CZunknownASSIGNED PAMar 2, 2022abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.41.48/2816SIKO-KOUPELNY-3-CZ-MAISiko koupelny - DC BrnoASSIGNED PADec 6, 2012abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.41.64/2664RADEK-LANGKRAMER-1-CZ-MAIMyDreams innovations s.r.o. (ORG-MIS27-RIPE)ASSIGNED PANov 3, 2011servery@mydreams.cz
└ 178.238.42.0/24256DC1-4D-HOUSING-11-CZ-MAIMaster Internet s.r.o.ASSIGNED PANov 10, 2011abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.43.0/2732RADEK-LANGKRAMER-6-CZ-MAIMyDreams innovations s.r.o. (ORG-MIS27-RIPE)ASSIGNED PAJan 12, 2022servery@mydreams.cz
└ 178.238.43.32/2732NETWIN-DORAZIL-1-CZ-MAINetWin CZ sro (ORG-NCS50-RIPE)ASSIGNED PAJan 6, 2012hosting@netwin.cz
└ 178.238.43.64/2732SL510-2-CZ-MAIHousing DC PrahaASSIGNED PAAug 21, 2018abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.43.96/298PMX-HCI-1-CZ-MAIMasterDC s.r.o. (ORG-MIS2-RIPE) · CZASSIGNED PAOct 12, 2023abuse@master.cz
└ 178.238.43.112/2816ALIS-2-MAI-CZALIS spol. s r.o. (ORG-ASSR7-RIPE)ASSIGNED PAOct 31, 2022jaderny@alis.cz
└ 178.238.43.144/2816CUBETEAM-1-MAI-CZCubeTeam s.r.o. (ORG-CS712-RIPE)ASSIGNED PAJul 8, 2021abuse@master.cz
└ 178.238.43.176/2816XCONSULTING-MAI-3-CZX Consulting Co. s.r.o. (ORG-XCCS2-RIPE)ASSIGNED PAMar 18, 2024vitezslav.hrabal@xconsulting.cz
└ 178.238.43.192/2664DARKMAY-FIDRANSKY-1-CZ-MAIDarkmay s.r.o. (ORG-DS529-RIPE)ASSIGNED PADec 30, 2011miroslav.fidransky@darkmay.cz
└ 178.238.44.0/25128DEDICATED-DC4-11-CZ-MAIMaster Internet s.r.o.ASSIGNED PAJul 1, 2020abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.44.128/2664PROFITAKSOLUTION-2-CZ-MAIMaster Internet s.r.o.ASSIGNED PASep 13, 2023abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.44.192/2664COMPUTER-MEDIA-1-CZ-MAIComputer Media sro (ORG-CMS31-RIPE)ASSIGNED PASep 13, 2023pn@computermedia.cz
└ 178.238.45.0/2816DOMAT-5-MAI-CZDomat Control System, s.r.o. (ORG-DCSS5-RIPE)ASSIGNED PADec 16, 2025ict@domat.cz
└ 178.238.45.16/2816EMAN-3-CZ-MAIeMan s.r.o. (ORG-ES294-RIPE)ASSIGNED PAMay 29, 2025michal.kosek@eman.cz
└ 178.238.45.32/2732CTACCENT-1-CZ-MAICT Accent, a.s. (ORG-CAA39-RIPE)ASSIGNED PAFeb 20, 2012Vladimir.Stach@ctgroup.cz
└ 178.238.45.80/2816ANAFRA-4-CZ-MAIANAFRA s.r.o.ASSIGNED PAFeb 29, 2012abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.45.96/2732DC1-4D-HOUSING-13-CZ-MAIMaster Internet s.r.o.ASSIGNED PAApr 23, 2012abuse@master.cz
via CZ-MASTER-20100712
└ 178.238.45.129 - 178.238.45.19163RADEK-LANGKRAMER-7-CZ-MAIMyDreams innovations s.r.o. (ORG-MIS27-RIPE)ASSIGNED PAJun 24, 2022servery@mydreams.cz
└ 178.238.45.192/2732VDS-2-CZ-MAIMasterDC s.r.o. (ORG-MIS2-RIPE) · CZASSIGNED PAApr 4, 2025abuse@master.cz
└ 178.238.46.0/24256BRNO-HOUSING23-CZ-MAIMaster Internet s.r.o.ASSIGNED PAFeb 3, 2012abuse@master.cz
via CZ-MASTER-20100712

A contact marked “via” is the registry's: the record names none of its own, so the registry hands down its parent's.

Network & registry

AnnouncementRouting historyRPKI & IRRWhois & abuse
Origin network

AS24971

CZ
Name
MasterDC s.r.o.
Type
Hosting
Registered
Jun 11, 2002
Domain
master.cz
Website
www.master.cz
Industry
Hosting and Cloud Provider
Spamhaus ASN-DROP
not listed