Short answer no.

Long answer. On short routes typical of what regional carriers fly you’ll often have the same flight number going to and from the regional airport. For example LGA to BGR then BGR to LGA. The problem arises when the same aircraft isn’t scheduled to fly the return leg, they already have a plane at BGR ready to go back to LGA. What can happen is the flight going from LGA can be delayed (which is not uncommon at LGA but that’s neither here nor there) while the flight from BGR is able to depart on time.

This particular route is about 1:30 long so if the LGA delays say 1:40 and the BGR flight leaves on time, then there’s a window where they can both be on the same frequency using the same callsign.

The airline I work for has policies for this. We just append an A to the end of our callsign. That’s done by dispatch. But the easy fix is for this particular issue is using the same plane for the turn, which we also do in most cases.

What?

If only there was some way to know.