What does CALLSGN stand for?
CALLSGN stands for "Callsign"
How to abbreviate "Callsign"?
"Callsign" can be abbreviated as CALLSGN
What is the meaning of CALLSGN abbreviation?
The meaning of CALLSGN abbreviation is "Callsign"
What does CALLSGN mean?
CALLSGN as abbreviation means "Callsign"