Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4CB callsign genealogy
Currently held by BLOXSOM, CHRISTOPHER G
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 AA4CB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AA4CB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA4CB, oldest first.
- MAXWELL, RONALD L SC2004-01-02 → cancelled 2016-03-23
- BLOXSOM, CHRISTOPHER G FL2026-03-28 active