Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JHD callsign genealogy
Currently held by DAVIDSON, JOE H
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 K4JHD's current licensee, walking backwards.
- DAVIDSON, JOE HALgranted 1997-10-24cancelled 2005-08-26
Successor callsigns
Callsigns held now by people who previously held K4JHD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4JHD, oldest first.
- MAUTNER, ROBERT S FL1988-10-25 → cancelled 2000-10-26
- DAVIDSON, JOE H AL2015-06-13 active