| ICAO 3-Letter Designator: |
MRX |
|---|---|
| Call Sign: (Telephony) |
SPEEDMARK |
| Aircraft Company: | HERMEN'S MARKAIR EXPRESS (ST. MARY'S, AK) |
| Country of Origin: |
UNITED STATES
|
| Previous Call Sign: | MRV - XENA |
| Next Call Sign: | MRY - AIR MARINE |