39.51.57.2 is an IPv4 address owned by Pakistan Telecommuication company limited and located in Karachi, Pakistan
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~$ curl http://api.db-ip.com/v2/free/39.51.57.2
{
"ipAddress": "39.51.57.2",
"continentCode": "AS",
"continentName": "Asia",
"countryCode": "PK",
"countryName": "Pakistan",
"stateProv": "Sindh",
"city": "Karachi",
}
~$ curl http://api.db-ip.com/v2/free/39.51.57.2/countryName
Pakistan
The free API is limited to 500 daily requests and returns city level location data only, if you require larger query volumes or more information such as latitude/longitude, ISP details or threat level assessment, please see our commercial offers.