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
185.199.111.153
Network Provider (ISP / ASN)
AS54113 (FASTLY - Fastly, Inc., US) [US]
Remote Server Geolocation & Time
Country
United States
United States
Region & City
California, San Francisco
Postal Code
94107
Coordinates (Lat / Lon)
37.7823, -122.391
Timezone Mapped
America/Los_Angeles
Server Local Time
22:21:01 - 10.06.2026
Allocated RIR Network
ARIN (North America)
Autonomous Owner
GitHub, 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