Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA5JAM callsign genealogy
Currently held by Mathis Sr, Joseph A
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 KA5JAM's current licensee, walking backwards.
- Mathis Sr, Joseph ATXgranted 2016-12-09cancelled 2016-12-30
Successor callsigns
Callsigns held now by people who previously held KA5JAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA5JAM, oldest first.
- Mathis Sr, Joseph A TX2016-12-30 active
- —— → cancelled 1997-10-09