As usual you comment as though you know what the airlines want. If you'd read the reg you'd know the answer to your question, but I'll provide a summary for you:
Airline transport pilot
An airline transport pilot (commonly called an "
ATP") is tested to the highest level of piloting ability. The certificate is a prerequisite for acting as a flight crew-member in scheduled airline operations.
The minimum pilot experience is 1,500 hours of flight time (1200 for Helicopters), 500 hours of cross-country flight time, 100 hours of night flight time, and 75 hours instrument operations time (simulated or actual). Other requirements include being 23 years of age, an instrument rating, being able to read, write, speak, and understand the English language, a rigorous written examination, and being of good moral character.
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An Airline Transport Pilot - restricted (ATP-r) is also available for pilots that do not meet the more rigorous requirements of an ATP. The only hour requirement for the ATP-r is 1,500 total and 200 cross country.
The "total time" requirement is reduced to 750 hours for former military pilots, 1,000 hours for graduates of university bachelor's degree programs, or 1,250 for graduates of university associate degree programs. The holder of an ATP-r is limited to only serving as the First Officer in a two pilot operation. Upon obtaining the requisite age and aeronautical experience, the pilot is issued an unrestricted ATP without further examination.
see 14CFR61.160 (requirements) and
14CFR61.167(privileges and limitations)
You're welcome.