Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4AWO callsign genealogy
Currently held by RANKIN, DAVID L
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 K4AWO's current licensee, walking backwards.
- Gardner, Charles KALgranted 2019-01-30cancelled 2019-02-22
Successor callsigns
Callsigns held now by people who previously held K4AWO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4AWO, oldest first.
- RANKIN, DAVID L OH2005-07-07 → cancelled 2017-08-19
- Gardner, Charles K AL2019-02-22 active