Default SQL Server Port
The default port 1433 is used when there is only one SQL Server named instance running on the computer.
When multiple SQL Server named instances are running, they run by default under a dynamic port (49152–65535). In this scenario, an application will connect to the SQL Server Browser service port (UDP 1434) to get the dynamic port and then connect to the dynamic port directly.
The default port of SQL server is 1433.
For Http Request Default Port number is 80
For Https Default Port Number is 443
For Sql Server Default Port Number is 1433