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Data as of Nov 3, 2026

83.167.224.0/19

No anonymizer space · no proxy exits in 30 days

MasterDC s.r.o.

Announcement
this exact prefix
RPKI valid
Announced by
AS24971
Type
Hosting

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
83.167.224.0/198,192CZ-MASTER-20080821MasterDC s.r.o. (ORG-MIS2-RIPE) · CZALLOCATED PAAug 21, 2008[email protected]
└ 83.167.224.0/24256PROXMOX-3-CZ-MAIMasterDC s.r.o. (ORG-MIS2-RIPE) · CZASSIGNED PAJan 14, 2021[email protected]
└ 83.167.225.0/2732DATAHOST2-CZ-MAIDatahost s.r.o.ASSIGNED PADec 30, 2008[email protected]
via CZ-MASTER-20080821
└ 83.167.225.32/2732INSTECZ-1-CZ-MAIINSTE.CZ s.r.o. (ORG-IS394-RIPE)ASSIGNED PANov 25, 2010[email protected]
└ 83.167.225.112/2816PICABOCZ-4-MAI-CZPicabo.cz, a.s. (ORG-PA985-RIPE)ASSIGNED PAJan 6, 2021[email protected]
└ 83.167.225.128/25128PETR-BYDZOVSKY-1-CZ-MAIPetr Bydzovsky housing TTC PrahaASSIGNED PAJan 26, 2009[email protected]
via CZ-MASTER-20080821
└ 83.167.228.208/2816FOXCOM-TMCZ3517-1-CZ-MAIFoxCom, s.r.o.ASSIGNED PAApr 18, 2014[email protected]
via CZ-MASTER-20080821
└ 83.167.232.0/24256CHL-2-MAI-CZVirtualmaster, s.r.o. (ORG-VS114-RIPE)ASSIGNED PAMar 10, 2010[email protected]
└ 83.167.234.0/24256BRNO-HOUSING10-CZ-MAIMaster Internet s.r.o.ASSIGNED PAApr 16, 2009[email protected]
via CZ-MASTER-20080821
└ 83.167.238.0/2664WEBANET-1-CZ-MAIWEBANET s.r.o. (ORG-WS231-RIPE)ASSIGNED PAJul 27, 2009[email protected]
└ 83.167.238.64/2664BRNO-HOUSING11-CZ-MAIMaster Internet s.r.o.ASSIGNED PAAug 5, 2009[email protected]
via CZ-MASTER-20080821
└ 83.167.238.128/2732LERISCZ-4-CZ-MAILERIS.CZ s.r.o. (ORG-LS248-RIPE)ASSIGNED PADec 17, 2018[email protected]
└ 83.167.238.160/2732C4626-3-CZ-MAIMasterDC s.r.o. (ORG-MIS2-RIPE) · CZASSIGNED PASep 5, 2016[email protected]
└ 83.167.238.192/2664DPG-1-CZ-MAIDPG spol. s r.o. (ORG-DSSR1-RIPE)ASSIGNED PADec 16, 2015[email protected]
└ 83.167.240.64/2732VALID-3-CZ-MAIOldrich Preiss - VALID serverhousing PrahaASSIGNED PANov 6, 2013[email protected]
via CZ-MASTER-20080821
└ 83.167.240.96/298ADIREKT-1-CZ-MAIA DIREKT sro (ORG-ADS20-RIPE)ASSIGNED PAMay 27, 2026[email protected]
└ 83.167.240.104/298BOOKINGANALYTICS-1-CZ-MAIBooking Analytics s.r.o. (ORG-BAS23-RIPE)ASSIGNED PAApr 5, 2022[email protected]
└ 83.167.240.112/2816FORT-1-CZ-MAIFort Petr (ORG-FP117-RIPE)ASSIGNED PAAug 29, 2023[email protected]
└ 83.167.240.128/25128SMARTSELLING-1-CZ-MAISmartSelling a.s. (ORG-SA4042-RIPE) · CZASSIGNED PADec 1, 2017[email protected]
└ 83.167.243.0/25128BRNO-HOUSING39-CZ-MAIMaster Internet s.r.o.ASSIGNED PAOct 21, 2020[email protected]
via CZ-MASTER-20080821
└ 83.167.243.128/2664BRNO-HOUSING41-CZ-MAIMaster Internet s.r.o.ASSIGNED PAFeb 16, 2021[email protected]
via CZ-MASTER-20080821
└ 83.167.243.192/2732BRNO-HOUSING42-CZ-MAIMaster Internet s.r.o.ASSIGNED PAFeb 16, 2021[email protected]
via CZ-MASTER-20080821
└ 83.167.243.240/2816SABSERVIS-5-MAI-CZSAB servis s.r.o. (ORG-SSS88-RIPE)ASSIGNED PAMay 6, 2024[email protected]
└ 83.167.244.0/25128RST-1-CZ-MAIRazorpoint Security Technologies, Inc.ASSIGNED PAOct 8, 2009[email protected]
via CZ-MASTER-20080821
└ 83.167.244.128/25128LHOLUB-2-CZ-MAILibor Holub (ORG-LH31-RIPE)ASSIGNED PAOct 19, 2009[email protected]
└ 83.167.245.0/24256HOSTINGSOLUTIONS-1-CZ-MAIHostingSolutions s.r.o.ASSIGNED PANov 3, 2009[email protected]
via CZ-MASTER-20080821
└ 83.167.246.0/25128DEDICATED-DC4-8-CZ-MAIMaster Internet s.r.o.ASSIGNED PAOct 16, 2019[email protected]
via CZ-MASTER-20080821
└ 83.167.246.144/2816BUSINESSCOMAS-2-CZ-MAIBusinessCom as (ORG-BA1580-RIPE)ASSIGNED PASep 26, 2023[email protected]
└ 83.167.246.176/2816UNNITSTECH-7-MAI-CZUnnits Tech s.r.o. (ORG-UTS15-RIPE)ASSIGNED PAApr 10, 2024[email protected]
└ 83.167.246.192/2664BRNO-HOUSING43-CZ-MAIMaster Internet s.r.o.ASSIGNED PAJul 21, 2021[email protected]
via CZ-MASTER-20080821
└ 83.167.247.0/24256DC1-4D-HOUSING-5-CZ-MAIMaster Internet s.r.o.ASSIGNED PANov 12, 2009[email protected]
via CZ-MASTER-20080821
└ 83.167.248.0/2664KCTDATA-1-CZ-MAIKCT Data, s.r.o. (ORG-KDS13-RIPE)ASSIGNED PAFeb 27, 2015[email protected]
└ 83.167.248.64/2732AJATEX-4-CZ-MAIAJATEX s.r.o. (ORG-AS499-RIPE)ASSIGNED PASep 8, 2016[email protected]
└ 83.167.248.96/2732BRNO-HOUSING34-CZ-MAIMaster Internet s.r.o.ASSIGNED PAMar 25, 2015[email protected]
via CZ-MASTER-20080821
└ 83.167.248.128/2664PROXMOX-4-CZ-MAIMasterDC s.r.o. (ORG-MIS2-RIPE) · CZASSIGNED PAOct 24, 2023[email protected]
└ 83.167.248.192/2664BRNO-HOUSING13-CZ-MAIMaster Internet s.r.o.ASSIGNED PADec 8, 2009[email protected]
via CZ-MASTER-20080821
└ 83.167.249.0/2732IRISOFTSYSTEMS-1-CZ-MAIIRISOFT SYSTEMS s.r.o. (ORG-ISS39-RIPE)ASSIGNED PAMar 26, 2015[email protected]
└ 83.167.249.32/2732SERVERZONE-1-CZ-MAIServerZone s.r.o. (ORG-SS540-RIPE)ASSIGNED PASep 30, 2015[email protected]
└ 83.167.249.64/2664DEDICATED-DC4-3-CZ-MAIMaster Internet s.r.o.ASSIGNED PAJun 17, 2015[email protected]
via CZ-MASTER-20080821
└ 83.167.249.128/2732BRNO-HOUSING37-CZ-MAIMasterDC s.r.o. (ORG-MIS2-RIPE) · CZASSIGNED PAOct 27, 2016[email protected]
└ 83.167.249.160/2816PRAHA-4D-VSPHERE-7-CZ-MAIShared VPS Master Internet s.r.o. vCloudASSIGNED PASep 8, 2017[email protected]
via CZ-MASTER-20080821
└ 83.167.249.176/2816PRAHA-4D-DEDICATED-1-CZ-MAIMaster Internet s.r.o.ASSIGNED PADec 15, 2017[email protected]
via CZ-MASTER-20080821
└ 83.167.249.192/2732KODANSKA-6-CZ-MAIKODANSKA OFFICE CENTER, s.r.o. (ORG-KOCS1-RIPE)ASSIGNED PAJan 5, 2017[email protected]
└ 83.167.249.224/2732DOTNETHOSTING-2-CZ-MAILukas VyslouzilASSIGNED PAMar 16, 2010[email protected]
via CZ-MASTER-20080821
└ 83.167.250.0/24256BRNO-HOUSING12-CZ-MAIMaster Internet s.r.o.ASSIGNED PANov 23, 2009[email protected]
via CZ-MASTER-20080821
└ 83.167.251.0 - 83.167.251.9394BRNO-HOUSING13-CZ-MAIMaster Internet s.r.o.ASSIGNED PAMar 8, 2012[email protected]
via CZ-MASTER-20080821
└ 83.167.251.94/321SOUE-PLZEN-1-CZ-MAIStredni odborne uciliste elektrotechnickeASSIGNED PAMar 8, 2012[email protected]
via CZ-MASTER-20080821
└ 83.167.251.95 - 83.167.251.255161BRNO-HOUSING13-CZ-MAIMaster Internet s.r.o.ASSIGNED PAMar 8, 2012[email protected]
via CZ-MASTER-20080821
└ 83.167.252.0/24256DC1-4D-HOUSING-6-CZ-MAIMaster Internet s.r.o.ASSIGNED PAApr 26, 2010[email protected]
via CZ-MASTER-20080821
└ 83.167.253.64/2732DEDICATED-DC4-10-CZ-MAIMaster Internet s.r.o.ASSIGNED PANov 29, 2019[email protected]
via CZ-MASTER-20080821
└ 83.167.253.96/2732EMBER-2-CZ-MAILubomir Ember (ORG-LE60-RIPE)ASSIGNED PAMar 29, 2017[email protected]
└ 83.167.253.128/25128RADEK-LANGKRAMER-4-CZ-MAIMyDreams innovations s.r.o. (ORG-MIS27-RIPE)ASSIGNED PANov 28, 2014[email protected]
└ 83.167.254.0/25128DEDICATED-DC4-1-CZ-MAIMaster Internet s.r.o.ASSIGNED PAJan 27, 2015[email protected]
via CZ-MASTER-20080821
└ 83.167.255.0/25128AIRA-GROUP-2-MAI-CZunknownASSIGNED PAJan 28, 2015[email protected]
via CZ-MASTER-20080821
└ 83.167.255.128/2732ACEIT-1-CZ-MAIAce IT s.r.o. (ORG-AIS35-RIPE)ASSIGNED PAJan 29, 2015[email protected]
└ 83.167.255.160/2816KODANSKA-7-CZ-MAIKODANSKA OFFICE CENTER, s.r.o. (ORG-KOCS1-RIPE)ASSIGNED PANov 27, 2019[email protected]
└ 83.167.255.176/2816SERVODATA-2-CZ-MAIServodata a.s. (ORG-SA4309-RIPE)ASSIGNED PAApr 19, 2023[email protected]
└ 83.167.255.192/2732IT-PRO-3-CZ-MAIIT-PRO s.r.o. (ORG-IS297-RIPE)ASSIGNED PAFeb 10, 2015[email protected]
└ 83.167.255.224/2732LERISCZ-3-CZ-MAILERIS.CZ s.r.o. (ORG-LS248-RIPE)ASSIGNED PASep 5, 2018[email protected]

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