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Reverse DNS PTR Resolver

Reverse DNS Lookup

Perform a quick Reverse DNS PTR lookup to determine the official system hostname and ISP carrier mapped to any IP address.

Reverse DNS Resolution Details

Target IP Address 77.79.251.40
Network Provider (ISP / ASN) AS15694 (ATMAN-ISP-AS - Atman Sp. z o.o., PL) [PL]
Reverse Hostname (PTR) s4.jchost04.pl

Remote Server Geolocation & Time

Country
Poland Poland
Region & City Mazovia, Warsaw
Postal Code 01-869
Coordinates (Lat / Lon) 52.2765, 20.9603
Timezone Mapped Europe/Warsaw
Server Local Time 20:44:13 - 30.06.2026
Allocated RIR Network RIPE NCC (Europe, Middle East, Central Asia)
Autonomous Owner ATMAN sp. z o.o.

Live Security Reputation Check

100% Clean Reputation

No spam, botnet attacks, or national threat flags identified for this host.

Spamhaus Zen RBL: CLEAN
Barracuda Central: CLEAN
USOM Threat Center: CLEAN

Server Colocation Map

Live Network Diagnostics