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
9.9.9.9
Network Provider (ISP / ASN)
AS19281 (QUAD9-AS-1 - Quad9, US) [US]
Remote Server Geolocation Clock
Country
United States
United States
Region & City
California, Berkeley
Postal Code
94709
Coordinates (Lat / Lon)
37.8806, -122.268
Timezone Mapped
America/Los_Angeles
Server Local Time
22:40:24 - 31.10.2026
Allocated RIR Network
ARIN (North America)
Autonomous Owner
Quad9
Live Security Reputation Check
Threat Flags Detected!
This IP is actively listed on spam reputation or security centers.
Spamhaus Zen RBL:
LISTED
Barracuda Central:
CLEAN
USOM Threat Center:
CLEAN
Server Location Map
OpenStreetMap
Berkeley, United States
37.8806, -122.2680
Free OpenStreetMap Service
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