Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W1HFX callsign genealogy
Currently held by MASON, FRANK M
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 W1HFX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W1HFX.
No current licensee on record previously held this callsign.