Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4MT callsign genealogy
Currently held by CARPENTER, SUZANNE C
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 AC4MT's current licensee, walking backwards.
- TIDWELL JR, CALVIN MTNgranted 2018-03-01cancelled 2018-03-23
Successor callsigns
Callsigns held now by people who previously held AC4MT.
- CARPENTER, SUZANNE CFLgranted 2002-03-26cancelled 2014-03-27
All historical holders
Every license row we've seen with the callsign AC4MT, oldest first.
- CARPENTER, SUZANNE C FL2001-12-28 → cancelled 2002-03-26
- TIDWELL JR, CALVIN M TN2018-03-23 active