Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4PEN callsign genealogy
Currently held by Byrne, Shelley D
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 K4PEN's current licensee, walking backwards.
- BYRNE, SHELLEY DKYgranted 2024-10-12cancelled 2024-11-02
Successor callsigns
Callsigns held now by people who previously held K4PEN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4PEN, oldest first.
- COMLEY, MYRON B VA1988-06-07 → cancelled 2000-06-09
- Byrne, Shelley D KY2024-11-02 active