numbers next to computer name in finder

sbhfx wrote:

What are the four numbers next to my computer's name in the finder sidebar? They change from time to time.

If there is more than one computer on your Network, the computer will be assigned a unique name.

You can make a change to the computer name—

System Preferences>Sharing

Can you posts a screenshot of what you are seeing

Take a screenshot on your Mac - Apple Support?

Click on the next to the right icon at the bottom of the relay box (icon with twin peaks) and select the screenshot to post the screenshot.

The reply window--autocorrect made it relay.