Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0XQ callsign genealogy
Currently held by Mason, Michael R
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 AB0XQ's current licensee, walking backwards.
- Mason, Michael RCOgranted 2002-01-30cancelled 2003-02-19
Successor callsigns
Callsigns held now by people who previously held AB0XQ.
- Mason, Michael RCOgranted 2023-02-24