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
173.37.145.112
Network Provider (ISP / ASN)
AS109 (CISCOSYSTEMS - CISCO SYSTEMS, INC., US) [US]
Remote Server Geolocation & Time
Country
United States
United States
Region & City
California, San Jose
Postal Code
95141
Coordinates (Lat / Lon)
37.3388, -121.8916
Timezone Mapped
America/Los_Angeles
Server Local Time
14:35:35 - 14.09.2026
Allocated RIR Network
ARIN (North America)
Autonomous Owner
Cisco Systems, Inc.
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