Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4MBZ callsign genealogy
Currently held by MEJIA, JOHN
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 N4MBZ's current licensee, walking backwards.
- MEJIA, JOHNFLgranted 2024-05-08cancelled 2024-05-29
Successor callsigns
Callsigns held now by people who previously held N4MBZ.
- Ford, Roger LSCgranted 2021-07-30
All historical holders
Every license row we've seen with the callsign N4MBZ, oldest first.
- Ford, Roger L NC2011-09-30 → cancelled 2021-07-30
- MEJIA, JOHN FL2024-05-29 active