Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF6WSR callsign genealogy
Currently held by ALAMO, MICHAEL F
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 KF6WSR's current licensee, walking backwards.
- ALAMO, MICHAEL FCAgranted 2014-10-24cancelled 2024-03-09
Successor callsigns
Callsigns held now by people who previously held KF6WSR.
- ALAMO, MICHAEL FCAgranted 2014-10-24cancelled 2024-03-09
All historical holders
Every license row we've seen with the callsign KF6WSR, oldest first.
- ALAMO, MICHAEL F CA2009-03-25 → cancelled 2014-10-24
- ALAMO, MICHAEL F CA2024-03-09 active