Need help locating the local host number

I just installed react on windows. local host number is shown after node.js was installed, but I closed the closed program after installing node, and wasnt able to copy the local host address.
I cant seem to locate the local host number to test the index.html file. i need the local host (http://localhost:###) to run my projects

The default port is 3000, so it would be http://localhost:3000

I’m not sure what you mean by “installed react on windows” but if you are using create react app when you start the app (npm start or yarn start) it should open up using the default browser and will print the port number in the console.

Local:            http://localhost:3000/
On Your Network:  http://SomeNetworkAddress:3000/