Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FS callsign genealogy
Currently held by COMPTON, DON E
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 K4FS's current licensee, walking backwards.
- ACKERMAN, GARY DNCgranted 2008-08-26cancelled 2011-01-25
Successor callsigns
Callsigns held now by people who previously held K4FS.
- BYARS, RANDALL GALgranted 2019-01-30
All historical holders
Every license row we've seen with the callsign K4FS, oldest first.
- COMPTON, DON E FL1998-01-26 → cancelled 2005-08-04
- BYARS, RANDALL G AL2007-10-16 → cancelled 2009-01-06
- ACKERMAN, GARY D NC2020-11-17 active