Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4RH callsign genealogy
Currently held by Tollett, Carlos W
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 K4RH's current licensee, walking backwards.
- Tollett, Carlos WTNgranted 1998-09-10cancelled 2006-05-02
Successor callsigns
Callsigns held now by people who previously held K4RH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4RH, oldest first.
- HARRIS, DONALD W AR1994-04-12 → cancelled 2006-04-14
- Tollett, Carlos W TN2026-03-10 active