Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6SZP callsign genealogy
Currently held by MASON, MICHAEL 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 W6SZP's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W6SZP.
- MASON, MICHAEL LCAgranted 2021-10-30cancelled 2023-09-29
All historical holders
Every license row we've seen with the callsign W6SZP, oldest first.
- CONRAGAN, JAMES CA1989-05-16 → cancelled 2001-05-17
- MASON, MICHAEL L AZ2017-05-01 → cancelled 2021-10-30
- MASON, MICHAEL L CA2023-09-29 active