Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RHC callsign genealogy
Currently held by CLAPP JR, RICHARD 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 K4RHC's current licensee, walking backwards.
- CLAPP JR, RICHARD HNCgranted 2005-08-15cancelled 2005-09-02
Successor callsigns
Callsigns held now by people who previously held K4RHC.
No current licensee on record previously held this callsign.