Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4C callsign genealogy
Currently held by Collinsworth, Bryan
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 AA4C's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AA4C.
- DALTON, BOB NNCgranted 2010-04-13cancelled 2011-01-25
All historical holders
Every license row we've seen with the callsign AA4C, oldest first.
- DALTON, BOB N NC2006-09-27 → cancelled 2010-04-13
- Collinsworth, Bryan FL2022-05-04 active