31.164.71.73 or xdsl-31-164-71-73.adslplus.ch is an IPv4 address owned by Sunrise GmbH and located in Lucerne, Switzerland
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~$ curl http://api.db-ip.com/v2/free/31.164.71.73
{
"ipAddress": "31.164.71.73",
"continentCode": "EU",
"continentName": "Europe",
"countryCode": "CH",
"countryName": "Switzerland",
"stateProv": "Lucerne",
"city": "Lucerne",
}
~$ curl http://api.db-ip.com/v2/free/31.164.71.73/countryName
Switzerland
The free API is limited to 1,000 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.