The airport directory lists T1 lost-property office at B1 west (032-741-3110 or 3114) and T2's office on Level 2 inside the central government service complex (032-741-8988 or 8989). Identify whether the loss happened in the terminal, on an aircraft or on transport. Airline baggage or in-cabin items may require contacting the carrier. Note the time, location and distinctive details before calling; confirm collection rules and hours.