117.2.238.7 or dynamic-ip-adsl.viettel.vn is an IPv4 address owned by Viettel Corporation and located in Măng Đen, Vietnam
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~$ curl http://api.db-ip.com/v2/free/117.2.238.7
{
"ipAddress": "117.2.238.7",
"continentCode": "AS",
"continentName": "Asia",
"countryCode": "VN",
"countryName": "Vietnam",
"stateProv": "Kon Tum",
"city": "M\u0103ng \u0110en",
}
~$ curl http://api.db-ip.com/v2/free/117.2.238.7/countryName
Vietnam
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.