157.7.12.131 is an IPv4 address owned by Radiation Effects Research Foundation and located in Suō-ōshima Chō (Kuka), Japan
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~$ curl http://api.db-ip.com/v2/free/157.7.12.131
{
"ipAddress": "157.7.12.131",
"continentCode": "AS",
"continentName": "Asia",
"countryCode": "JP",
"countryName": "Japan",
"stateProv": "Yamaguchi",
"city": "Su\u014d-\u014dshima Ch\u014d (Kuka)",
}
~$ curl http://api.db-ip.com/v2/free/157.7.12.131/countryName
Japan
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