120-26M - Assignment of Aircraft Call Signs and Associated Telephonies
- Date Issued
- September 10, 2018
- Responsible Office
This Advisory Circular (AC) describes the Federal Aviation Administration (FAA) Air Traffic Organization (ATO) requirements and procedures for the assignment and authorization for use of aircraft call signs in the National Airspace System (NAS), specifically, International Civil Aviation Organization (ICAO) three-letter designators (3LD), U.S. special designators, and local designators, and their associated telephonies. Guidance is provided to aircraft operators for requesting call signs and explains the assignment and the authorization process for their use domestically within the NAS and internationally.
- AC 120-26M (PDF, 2.8 MB)