146.108.71.52 or undefined.zgrp.net is an IPv4 address owned by Zumtobel Group AG and located in Dornbirn, Austria
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~$ curl http://api.db-ip.com/v2/free/146.108.71.52
{
"ipAddress": "146.108.71.52",
"continentCode": "EU",
"continentName": "Europe",
"countryCode": "AT",
"countryName": "Austria",
"stateProv": "Vorarlberg",
"city": "Dornbirn",
}
~$ curl http://api.db-ip.com/v2/free/146.108.71.52/countryName
Austria
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.