Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4RTR callsign genealogy
Currently held by Jarrell, Richard 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 KO4RTR's current licensee, walking backwards.
- Jarrell, Richard WALgranted 2021-03-01cancelled 2021-03-23
Successor callsigns
Callsigns held now by people who previously held KO4RTR.
No current licensee on record previously held this callsign.