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
212.56.43.47
Network Provider (ISP / ASN)
AS40021 (CONTABO-40021 - Contabo Inc., US) [DE]
Remote Server Geolocation & Time
Country
United States
United States
Region & City
Missouri, St Louis
Postal Code
63101
Coordinates (Lat / Lon)
38.6364, -90.1985
Timezone Mapped
America/Chicago
Server Local Time
04:52:41 - 11.06.2026
Allocated RIR Network
ARIN (North America)
Autonomous Owner
Contabo GmbH
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