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
165.72.0.0
Network Provider (ISP / ASN)
AS2571 (DHLNET - DHL Information Services (Europe) s.r.o, CZ) [CZ]
Reverse Hostname (PTR)
No Pointer (PTR) record configured for this IP.
Remote Server Geolocation & Time
Country
Czechia
Czechia
Region & City
Prague, Prague
Postal Code
148 00
Coordinates (Lat / Lon)
50.0312, 14.507
Timezone Mapped
Europe/Prague
Server Local Time
08:05:58 - 26.07.2026
Allocated RIR Network
RIPE NCC (Europe, Middle East, Central Asia)
Autonomous Owner
DHL Information Services (Europe) s.r.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