Thanks for response. Rod. What I mean is that there are a lot of e.g BMA2AX or DLH4PL EZY4MN (all bar the first one ficticious), with no routes shown at all. I had,some time ago seen the thread explaining the difficulties that Airnav have with these,but just thought that somewhere there may have been some sort of method for decoding these types of flight numbers. I use flight display with my other rig, and even that,of late, is not always dependable for that type of flight number