Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RMH callsign genealogy
Currently held by SHARP, RUSSELL E
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 K4RMH's current licensee, walking backwards.
- HORNSBY, RODNEY MALgranted 2022-03-02cancelled 2024-03-19
- KA4MZTno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K4RMH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4RMH, oldest first.
- SHARP, RUSSELL E AL1995-09-25 → cancelled 2007-09-26
- Hayes, Robert M NC2010-04-13 → cancelled 2022-04-14
- HORNSBY, RODNEY M AL2024-03-19 active