Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1HSM callsign genealogy
Currently held by Marsman, Henry S
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K1HSM's current licensee, walking backwards.
- Marsman, Henry SNJgranted 2014-03-06cancelled 2014-03-28
Successor callsigns
Callsigns held now by people who previously held K1HSM.
No current licensee on record previously held this callsign.