Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6FMC callsign genealogy
Currently held by Cordeiro Sr, Mario 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 W6FMC's current licensee, walking backwards.
- Cordeiro Sr, Mario FCAgranted 2011-05-11cancelled 2015-04-14
Successor callsigns
Callsigns held now by people who previously held W6FMC.
No current licensee on record previously held this callsign.