Confidence: Medium · Source: FCC ULS · As of 2026-09-15
K4HRH callsign genealogy
Currently held by HARDGROVE, HARRY R
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 K4HRH's current licensee, walking backwards.
- Drummond, Johnny DGAgranted 2008-12-04cancelled 2014-05-23
Successor callsigns
Callsigns held now by people who previously held K4HRH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4HRH, oldest first.
- HARDGROVE, HARRY R KY1997-10-07 → cancelled 2009-10-08
- Drummond, Johnny D GA2014-05-23 → cancelled 2026-05-27