Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4CS callsign genealogy
Currently held by Shelby, Carson D
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 AA4CS's current licensee, walking backwards.
- Shelby, Carson DTNgranted 2021-03-01cancelled 2025-04-04
Successor callsigns
Callsigns held now by people who previously held AA4CS.
- Sugars, Carol ANMgranted 2022-04-15
All historical holders
Every license row we've seen with the callsign AA4CS, oldest first.
- Sugars, Carol A FL2018-12-14 → cancelled 2022-04-15
- Shelby, Carson D TN2025-04-04 active