2804:52ec:: is an IPv6 address owned by Campos Gerais Telecom and located in Tibagi, Brazil
If you believe something above is incorrect, please let us know and report wrong data
~$ curl http://api.db-ip.com/v2/free/2804:52ec::
{
    "ipAddress": "2804:52ec::",
	"continentCode": "SA",
	"continentName": "South America",
	"countryCode": "BR",
	"countryName": "Brazil",
	"stateProv": "Paran\u00e1",
	"city": "Tibagi",
}
~$ curl http://api.db-ip.com/v2/free/2804:52ec::/countryName
Brazil
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.