171.5.251.21 is an IPv4 address owned by Triple T Broadband Public Company Limited and located in Ban Lat, Thailand
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~$ curl http://api.db-ip.com/v2/free/171.5.251.21
{
"ipAddress": "171.5.251.21",
"continentCode": "AS",
"continentName": "Asia",
"countryCode": "TH",
"countryName": "Thailand",
"stateProv": "Phetchaburi",
"city": "Ban Lat",
}
~$ curl http://api.db-ip.com/v2/free/171.5.251.21/countryName
Thailand
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.