To check the number of SQL Servers installed on a LAN or network , we can use the following Commands on your commandline(cmd) :

• osql -L
• sqlcmd -L

Also , we can run the following command on Powershell to check the SQL Servers installed on a network with detailed results :

[System.Data.Sql.SqlDataSourceEnumerator]::Instance.GetDataSources()

• 2. SQL Starter