I know this doesn't answer your question, but I once wanted to know the same information, so I called Delta and they were able to tell me pretty easily. I didn't write down the information, but I seem to recall that the flight numbers were all grouped together so they were easy to identify. A quick call to Delta should yield this info.

As the above posting shows, and as I recalled, BE flight numbers seem to be grouped together.

[This message has been edited by dchristiva (edited 10-08-2002).]