BryanG From United States of America, joined May 1999, 436 posts, RR: 0
Reply 2, posted (14 years 9 months 1 week 2 days 22 hours ago) and read 1158 times:
Amtran is the holding company of American Trans Air. It similar to AA, where AMR, Inc. is the holding company for American Airlines. So wherever you hear "Amtran" in an aviation sense just consider it synonymous with ATA. I think the ATC callsign for ATA is even "Amtran".