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Data as of Nov 9, 2026

37.140.220.0/24

No anonymizer space · no proxy exits in 30 days

MasterDC s.r.o. · space held by ProfiSMS 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
37.140.220.0/24256CZ-PROFISMS-20210803ProfiSMS s.r.o. (ORG-PS428-RIPE) · CZALLOCATED PAAug 3, 2021info@profisms.cz
└ 37.140.220.0/2732profisms-1unknownASSIGNED PAAug 4, 2021info@profisms.cz
via CZ-PROFISMS-20210803
└ 37.140.220.32/2732axima-net-1AXIMA SMS SERVICES s.r.o. (ORG-ASSS7-RIPE)ASSIGNED PAAug 4, 2021admin@sms-sluzba.cz
└ 37.140.220.64/2732smsbrana-net-1SMSbrana s.r.o. (ORG-SS1213-RIPE)ASSIGNED PAAug 4, 2021info@profisms.cz
via CZ-PROFISMS-20210803

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