Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6MAS callsign genealogy
Currently held by Siegers, Sean
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 K6MAS's current licensee, walking backwards.
- Siegers, SeanCAgranted 2023-10-07cancelled 2023-10-31
Successor callsigns
Callsigns held now by people who previously held K6MAS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6MAS, oldest first.
- HENRY, PHILIP L NV2008-08-08 → cancelled 2020-09-16
- Siegers, Sean CA2023-10-31 active