103.81.100.0 is an IPv4 address owned by Universitas Lambung Mangkurat, y and located in Banjarmasin, Indonesia
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~$ curl http://api.db-ip.com/v2/free/103.81.100.0
{
"ipAddress": "103.81.100.0",
"continentCode": "AS",
"continentName": "Asia",
"countryCode": "ID",
"countryName": "Indonesia",
"stateProv": "South Kalimantan",
"city": "Banjarmasin",
}
~$ curl http://api.db-ip.com/v2/free/103.81.100.0/countryName
Indonesia
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.