81.6.54.68 or 68-54-6-81.static.dsl-net.ch is an IPv4 address owned by green.ch AG and located in Lupfig, Switzerland
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~$ curl http://api.db-ip.com/v2/free/81.6.54.68
{
"ipAddress": "81.6.54.68",
"continentCode": "EU",
"continentName": "Europe",
"countryCode": "CH",
"countryName": "Switzerland",
"stateProv": "Aargau",
"city": "Lupfig",
}
~$ curl http://api.db-ip.com/v2/free/81.6.54.68/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.