Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4PDA callsign genealogy
Currently held by Shirley, Paul 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 K4PDA's current licensee, walking backwards.
- Shirley, Paul AFLgranted 2023-09-23cancelled 2023-11-03
Successor callsigns
Callsigns held now by people who previously held K4PDA.
- Mardis, Richard DFLgranted 2011-01-04cancelled 2023-01-05
All historical holders
Every license row we've seen with the callsign K4PDA, oldest first.
- LOVE, FRANKLIN B VA1995-05-30 → cancelled 2007-05-31
- Mardis, Richard D FL2010-05-04 → cancelled 2011-01-04
- Shirley, Paul A FL2023-11-03 active