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InternetData
IPv4 address

83.167.244.240

An address in Brno, South Moravian, Czechia, announced by MasterDC s.r.o. (AS24971). Of our anonymity, network and service databases, it is in Hosting IP.

7 of 21 address-keyed databases hold it

Summary
Company
MasterDC s.r.o.
Prefix
83.167.224.0/19
Hostname
smtp-out-08.svethostingu.cz
Registered to
Libor Holub
Network type
Hosting
Anycast
No

Anonymity

Whether the address hides someone else: a VPN, Tor, a relay, a proxy pool, or a hosting range.

1 of 7 hold it
Confidence
medium
Last seen
2026-10-08

Ownership

Who holds the address: the AS announcing it, the registry record, the abuse contact and its name in DNS.

4 of 6 hold it
Company
MasterDC s.r.o.
Domain
master.cz
Type
Hosting
Registered in
Czechia
AS number
AS24971
Name
MasterDC s.r.o.
Prefix
83.167.224.0/19
RPKI
valid
Type
Hosting
Domain
master.cz
Registered in
Czechia
Name
Libor Holub
Handle
LHOLUB-2-CZ-MAI
Organization
ORG-LH31-RIPE
Status
ASSIGNED PA
Registry
ripe
Domain
svethostingu.cz
Name
Libor Holub Contact
Phone
+420776672383
Address
Libor Holub, Krakovska 5, 700 30 Ostrava, Czech Republic
Network
83.167.244.128-83.167.244.255
Not seen inIP RWHOISIP RDNS

Geolocation

Where the address is, and what that place uses.

2 of 2 hold it
City
Brno
Region
South Moravian
Postal code
602 00
Country
Czechia
Continent
Europe
Coordinates
49.1952, 16.6080
Timezone
Europe/Prague

Network

What kind of network it is on: a mobile carrier, an anycast service, a CDN edge.

0 of 3 hold it

Services

What our own internet-wide measurement found listening on it.

0 of 3 hold it
00 · Evaluate

Test the real build first.

An evaluation license puts a full current build in your hands — every row, every column, no sampling — so you can measure it against your own traffic before anyone talks about terms.

01 · License

Then license what you use.

Standard, for detection and decisions inside your own product and operations.
Redistribution, when the data ships onward inside what you sell — priced by scope, not by seat.
Annual terms, a named contact, and flexible payment terms — monthly, quarterly or yearly.