Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7ZFX callsign genealogy
Currently held by SHIELDS, KENNETH A
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 K7ZFX's current licensee, walking backwards.
- Duglin, JoshuaUTgranted 2023-08-24cancelled 2023-09-15
Successor callsigns
Callsigns held now by people who previously held K7ZFX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7ZFX, oldest first.
- SHIELDS, KENNETH A IN2006-10-26 → cancelled 2019-02-12
- Duglin, Joshua UT2023-09-15 active