Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4WDH callsign genealogy
Currently held by KIRKMAN, JONATHAN L
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 W4WDH's current licensee, walking backwards.
- HATFIELD, WILLIAM DNCgranted 2024-01-27cancelled 2024-02-16
Successor callsigns
Callsigns held now by people who previously held W4WDH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4WDH, oldest first.
- KIRKMAN, JONATHAN L GA2011-03-11 → cancelled 2023-05-31
- HATFIELD, WILLIAM D NC2024-02-16 active