Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4WDT callsign genealogy
Currently held by Merritt, Jerry M
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 K4WDT's current licensee, walking backwards.
- Merritt, Jerry MSCgranted 2024-12-17cancelled 2025-01-24
Successor callsigns
Callsigns held now by people who previously held K4WDT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4WDT, oldest first.
- TART, WILLIAM D SC2013-01-05 → cancelled 2025-01-07
- Merritt, Jerry M SC2025-01-24 active