Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC6X callsign genealogy
Currently held by RIOS, RICHARD J
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 AC6X's current licensee, walking backwards.
- BENNETT, MATTHEW WCAgranted 2018-06-15cancelled 2018-11-24
Successor callsigns
Callsigns held now by people who previously held AC6X.
- HORTON, JAMES PVAgranted 1988-12-13cancelled 2000-12-14
All historical holders
Every license row we've seen with the callsign AC6X, oldest first.
- RIOS, RICHARD J CA2006-11-03 → cancelled 2018-11-06
- BENNETT, MATTHEW W CA2018-11-24 active