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
203.141.128.0
Network Provider (ISP / ASN)
AS2514 (InfoSphere - NTT PC Communications, Inc., JP) [JP]
Remote Server Geolocation & Time
Country
Japan
Japan
Region & City
Tokyo, Chiyoda City
Postal Code
100-8111
Coordinates (Lat / Lon)
35.6916, 139.768
Timezone Mapped
Asia/Tokyo
Server Local Time
23:39:33 - 14.06.2026
Allocated RIR Network
APNIC (Asia-Pacific)
Autonomous Owner
INTERLINK Co., LTD
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