LAYER3 INTEL
Get started
Sign in
Data as of Nov 6, 2026

185.58.43.0/24

No anonymizer space · no proxy exits in 30 days

MasterDC s.r.o.

Announcement
185.58.40.0/22
RPKI valid
Announced by
AS24971
Type
Hosting
Risk
50 / 100 · Medium

Registrations in this block

The registry's network records over this block, widest first, each under its parent.

RangeAddressesNetnameHolderTypeCreatedAbuse contact
185.58.40.0/221,024CZ-MASTER-20140519MasterDC s.r.o. (ORG-MIS2-RIPE) · CZALLOCATED PAMay 19, 2014abuse@master.cz
└ 185.58.43.0/24256SF3-1-CZ-MAIHousing DC BrnoASSIGNED PAJan 9, 2019abuse@master.cz
via CZ-MASTER-20140519

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
Announced by

Covering announcement 185.58.40.0/22

Prefix
185.58.40.0/22
Announced by
AS24971 MasterDC s.r.o.
Type
Hosting
Proxy exits
4
RPKI
RPKI valid
Netname
CZ-MASTER-20140519
Registrant
MasterDC s.r.o.
RIR
RIPE NCC
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