37.28.216.66 or 66.216.28.37.rev.vodafone.pt is an IPv4 address owned by Vodafone Portugal and located in Porto, Portugal
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~$ curl http://api.db-ip.com/v2/free/37.28.216.66
{
"ipAddress": "37.28.216.66",
"continentCode": "EU",
"continentName": "Europe",
"countryCode": "PT",
"countryName": "Portugal",
"stateProv": "Porto",
"city": "Porto",
}
~$ curl http://api.db-ip.com/v2/free/37.28.216.66/countryName
Portugal
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.