Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4MAT callsign genealogy
Currently held by Stiles, Matthew T
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 KK4MAT's current licensee, walking backwards.
- Stiles, MatthewFLgranted 2025-09-03cancelled 2025-09-23
Successor callsigns
Callsigns held now by people who previously held KK4MAT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK4MAT, oldest first.
- Callaghan, Tyler J FL2012-10-12 → cancelled 2024-11-16
- Stiles, Matthew T FL2025-09-23 active