12.1.48.0 is an IPv4 address owned by PORT AUTHORITY OF New York and New Jersey and located in Jersey City (Downtown Jersey City), New Jersey, United States
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~$ curl http://api.db-ip.com/v2/free/12.1.48.0
{
"ipAddress": "12.1.48.0",
"continentCode": "NA",
"continentName": "North America",
"countryCode": "US",
"countryName": "United States",
"stateProv": "New Jersey",
"city": "Jersey City (Downtown Jersey City)",
}
~$ curl http://api.db-ip.com/v2/free/12.1.48.0/countryName
United States
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.