Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9CEF callsign genealogy
Currently held by FERREIRA, CARLOS
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 W9CEF's current licensee, walking backwards.
- FERREIRA, CARLOSILgranted 2024-08-02cancelled 2024-12-10
Successor callsigns
Callsigns held now by people who previously held W9CEF.
No current licensee on record previously held this callsign.