78.25.78.138 or mx1.santrek.ru is an IPv4 address owned by PJSC MegaFon and located in Krasnyy Oktyabr', Russia
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~$ curl http://api.db-ip.com/v2/free/78.25.78.138
{
"ipAddress": "78.25.78.138",
"continentCode": "EU",
"continentName": "Europe",
"countryCode": "RU",
"countryName": "Russia",
"stateProv": "Saratov Oblast",
"city": "Krasnyy Oktyabr'",
}
~$ curl http://api.db-ip.com/v2/free/78.25.78.138/countryName
Russia
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