81.0.195.147 or unassigned-81-0-195-147.casablanca.cz is an IPv4 address owned by Casablanca INT fraction and located in Prague (Praha 5), Czechia
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~$ curl http://api.db-ip.com/v2/free/81.0.195.147
{
"ipAddress": "81.0.195.147",
"continentCode": "EU",
"continentName": "Europe",
"countryCode": "CZ",
"countryName": "Czechia",
"stateProv": "Hlavn\u00ed m\u011bsto Praha",
"city": "Prague (Praha 5)",
}
~$ curl http://api.db-ip.com/v2/free/81.0.195.147/countryName
Czechia
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.