Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX5A callsign genealogy
Currently held by McCallum, Mamo B
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 KX5A's current licensee, walking backwards.
- McCallum, Mamo BARgranted 2019-05-29cancelled 2020-12-29
Successor callsigns
Callsigns held now by people who previously held KX5A.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KX5A, oldest first.
- KOUBA, CHARLES P TX1996-11-19 → cancelled 2008-11-20
- SONS OF SICILY CONTEST CLUB TX2008-12-09 → cancelled 2020-12-10
- McCallum, Mamo B AR2020-12-29 active