Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT9P callsign genealogy
Currently held by Mather, Dale F
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 KT9P's current licensee, walking backwards.
- ROBERSON, JUSTIN WINgranted 2023-01-19cancelled 2025-02-22
Successor callsigns
Callsigns held now by people who previously held KT9P.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KT9P, oldest first.
- Mather, Dale F IL2012-11-09 → cancelled 2025-02-04
- ROBERSON, JUSTIN W IN2025-02-22 active