Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4JHF callsign genealogy
Currently held by Fowler, John 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 K4JHF's current licensee, walking backwards.
- Fowler, John HNCgranted 2008-03-20cancelled 2008-09-05
Successor callsigns
Callsigns held now by people who previously held K4JHF.
No current licensee on record previously held this callsign.