153.166.129.51 or p1709051-ipxg00e01sizuokaden.shizuoka.ocn.ne.jp is an IPv4 address owned by NTT Communications Corporation and located in Shizuoka, Japan
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~$ curl http://api.db-ip.com/v2/free/153.166.129.51
{
"ipAddress": "153.166.129.51",
"continentCode": "AS",
"continentName": "Asia",
"countryCode": "JP",
"countryName": "Japan",
"stateProv": "Shizuoka",
"city": "Shizuoka",
}
~$ curl http://api.db-ip.com/v2/free/153.166.129.51/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.