Recent Airline Company Frequencies ?
 

Hello:

Have been trying to find some of the most used "Company Frequencies" for
commercial airlines that
hopefully would be hearable in the northeast around Boston.

Have found several sites that list some, but these listings are apparently
really
old; still have Eastern airlines, etc. on them.

Does anyone have a list of the primary used ones, or perhaps you can direct
me
to a link that has reasonably up to date listings ?

Thanks,
Bob

BTW: Are ARINC conversations encoded, or possibly digital ?
What modes are used by them ?
Are there a few freq's that are used most often ?