Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7UM callsign genealogy
Currently held by UTAH DX ASSOCIATION
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 K7UM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K7UM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7UM, oldest first.
- NAYLOR, MORLEY E UT1997-02-26 → cancelled 2003-06-20
- UTAH DX ASSOCIATION UT2025-07-03 active