U.S. DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION Air Traffic Organization Policy Effective Date: February 9, 2012 Section 4. ICAO Aircraft Company Three-Letter Identifier and/or Telephony Designator Assignments and U.S. Special Telephony/Call Signs http://www.faa.gov/air_traffic/publications/atpubs/CNT/3-1-B.htm Company : BALTIA AIR LINES, INC. (JAMAICA, NY) Country: UNITED STATES Telephony 3Ltr: BTL I wanted to post this information again for any newcomers... Just in case "free dictionary online" doesn't update their definition of an airline.