Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3DFP callsign genealogy
Currently held by Perry, David F
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 W3DFP's current licensee, walking backwards.
- PERRY Jr, DAVID FMDgranted 2018-01-05cancelled 2019-03-19
Successor callsigns
Callsigns held now by people who previously held W3DFP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3DFP, oldest first.
- SLEIGHTER, CHARLES R PA1996-09-09 → cancelled 2008-09-10
- Perry, David F MD2019-03-19 active