Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA5CA callsign genealogy
Currently held by DARNALL, WILLIAM 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 AA5CA's current licensee, walking backwards.
- BARTHOLD, CHRISTOPHER STXgranted 2022-01-18cancelled 2022-02-08
Successor callsigns
Callsigns held now by people who previously held AA5CA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA5CA, oldest first.
- DARNALL, WILLIAM L OK1998-02-02 → cancelled 2008-04-29
- BARTHOLD, CHRISTOPHER S TX2022-02-08 active