The similarity of the American Trans Air and AirTran Airways names to those of other airlines caused confusion among customers and the general public. The airline had been known informally as ATA from early in its history, and from the mid-1990s on had been advertised as such, so in 2002 the name of the holding company was changed to ATA Holdings Corp. In 2003, the name of the airline itself was changed to ATA Airlines, Inc. In 2007, ATA Holdings changed names again; this time to Global Aero Logistics, Inc., immediately after the acquisition of World Air Holdings.