Air Traffic Control Fully Certified
Confusion
ATC Issue All Types
General None Reported / Taken
Company Policy
Air Taxi X was in my airspace after departing BKL climbing to 6;000 FT. Mansfield Approach called with a manual hand off on [Air Taxi Y] an inbound to BKL also with the callsign. This caused difficulty starting a track on the inbound; and communicating with both aircraft even after explaining to both pilots of the duplicate call signs. This has the potential to be a very dangerous situation. There is absolutely no reason a company should have the same call sign on 2 active flights at the same time; given the infinite number of possible flight numbers.
CLE Controller voiced concern regarding the continued use of identical call signs by one company with both aircraft operating at the same time and in the same locality.