Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4RDP callsign genealogy
Currently held by Pfeil, Richard 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 W4RDP's current licensee, walking backwards.
- Pfeil, Richard DTXgranted 2019-03-18cancelled 2021-07-31
Successor callsigns
Callsigns held now by people who previously held W4RDP.
- Rouse, Timothy AOHgranted 2021-07-24
All historical holders
Every license row we've seen with the callsign W4RDP, oldest first.
- Rouse, Timothy A OH2001-08-21 → cancelled 2001-10-12
- Pfeil, Richard D TX2021-07-31 active