103.194.121.0 is an IPv4 address owned by Macquarie Technology Operations Pty Limited and located in Sydney, New South Wales, Australia
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~$ curl http://api.db-ip.com/v2/free/103.194.121.0
{
"ipAddress": "103.194.121.0",
"continentCode": "OC",
"continentName": "Oceania",
"countryCode": "AU",
"countryName": "Australia",
"stateProv": "New South Wales",
"city": "Sydney",
}
~$ curl http://api.db-ip.com/v2/free/103.194.121.0/countryName
Australia
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.