Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4IBM callsign genealogy
Currently held by YOUNG, CHARLES 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 K4IBM's current licensee, walking backwards.
- Freeman Jr, Arthur LTNgranted 2002-07-15cancelled 2011-04-02
Successor callsigns
Callsigns held now by people who previously held K4IBM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4IBM, oldest first.
- YOUNG, CHARLES W GA1998-09-23 → cancelled 2010-09-24
- Freeman JR, Arthur L TN2021-03-29 active