Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4AHM callsign genealogy
Currently held by Hollis, Karen J
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 K4AHM's current licensee, walking backwards.
- Hollis, Karen JFLgranted 2022-09-09cancelled 2023-03-13
Successor callsigns
Callsigns held now by people who previously held K4AHM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4AHM, oldest first.
- VAUGHN, LEARD F SC2003-06-21 → cancelled 2015-09-15
- Hollis, Karen J FL2023-03-13 active