Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF4CC callsign genealogy
Currently held by COSTINE, CHRISTOPHER L
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 AF4CC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AF4CC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AF4CC, oldest first.
- DEKKER, WILLIAM J VA1997-04-16 → cancelled 2008-01-23
- COSTINE, CHRISTOPHER L FL2024-11-02 active