121.113.128.175 or i121-113-128-175.s41.a007.ap.plala.or.jp is an IPv4 address owned by NTT Communications Corporation and located in Chiyoda City, Japan
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~$ curl http://api.db-ip.com/v2/free/121.113.128.175
{
"ipAddress": "121.113.128.175",
"continentCode": "AS",
"continentName": "Asia",
"countryCode": "JP",
"countryName": "Japan",
"stateProv": "Tokyo",
"city": "Chiyoda City",
}
~$ curl http://api.db-ip.com/v2/free/121.113.128.175/countryName
Japan
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.