T Before N Number

This has probably been asked before, and I am sorry. Does anyone know what the T means before an aircraft’s N Number? Does it mean it is a test or what. Again, sorry if this has been asked beforem but I couldn’t find a discussion on it.

Thanks

Air Taxi

You’re right, it has been talked about here.

Sorry, like I said, I thought it had, but I couldnt find it. Sorry. Thanks for the info.

No problem. Glad we could help.