Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4WTF callsign genealogy
Currently held by Walker, Daniel P
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 WD4WTF's current licensee, walking backwards.
- Walker, Daniel PFLgranted 2021-05-05cancelled 2021-05-25
Successor callsigns
Callsigns held now by people who previously held WD4WTF.
No current licensee on record previously held this callsign.