How should you ensure you correctly identify yourself when the controller asks for identification?

• A. State only the tail number.
• B. Say only the operator's company name.
• C. Give the flight plan.
• D. Provide the full callsign and registration; for example, N123AB.

Answer: (C)

Identifying yourself on the radio means giving the exact aircraft identity you use for transmissions. When the controller asks for identification, you should provide the full callsign and registration, for example N123AB. This is the unique on-air identity that lets ATC know exactly which airplane you’re operating and what instructions apply. Stating only the tail number or only the company name doesn’t reliably identify the aircraft over the radio, and the flight plan is a filed document rather than the live identity you broadcast. Using the full callsign makes your response clear and unambiguous, which helps the controller manage traffic safely and efficiently.