HSM Call Sign Abbreviation

HSM has various meanings in the Call Sign category. Discover the full forms, definitions, and usage contexts of HSM in Call Sign.

Horizon Air for Transport and Training
Call Sign

Citation

Acronym24.com. (2025). What does HSM mean in Call Sign?. Retrieved from https://acronym24.com/hsm-meaning-in-call-sign/

Did You Mean?

Last updated:

More HSM Definitions