31.11.30.87 or ftth-static-31-11-30-87.breitband.ch is an IPv4 address owned by ImproWare AG and located in Basel, Switzerland
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~$ curl http://api.db-ip.com/v2/free/31.11.30.87
{
"ipAddress": "31.11.30.87",
"continentCode": "EU",
"continentName": "Europe",
"countryCode": "CH",
"countryName": "Switzerland",
"stateProv": "Basel-City",
"city": "Basel",
}
~$ curl http://api.db-ip.com/v2/free/31.11.30.87/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.