Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9FWA callsign genealogy
Currently held by BARRERA, MARK
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 K9FWA's current licensee, walking backwards.
- BARRERA, MARKNCgranted 2015-08-31cancelled 2015-09-29
Successor callsigns
Callsigns held now by people who previously held K9FWA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9FWA, oldest first.
- IMBRUGLIA, CHARLES E WI1988-02-02 → cancelled 2000-02-03
- BARRERA, MARK NC2025-07-29 active