The Great Call Sign Exchange

If you’d like to exchange your current call sign number for one that’s more meaningful to you, now is your chance! From September 17th through September 24, 2021, you have the opportunity to upgrade the call sign number that was originally assigned to you for one of your choosing (availability permitting). This one-time event is […]

Register for Call Sign

Get Your COMPASSION Call Sign Today   The COMPASSION call sign is intended to clearly identify routine ambulatory patient transport and other public service missions conducted by volunteers including: animal transport, environmental flights, disaster response and other non-profit flying that serves the public interest. Why Use COMPASSION? Register for Call Sign Frequently Asked Questions Identify […]

CMF History

Original 1999 Letter to Public Benefit Flying Groups and Pilots May 29, 1999 TO: Public Benefit Flying Organizations and Pilots RE: Call Sign COMPASSION and three-letter designator CMF Dear Friends, On the first of this month at the Air Care Alliance 1999 national conference in Kansas City I announced that at our request the FAA […]