Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4ZQF callsign genealogy
Currently held by Grantham, Robert W
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 N4ZQF's current licensee, walking backwards.
- Bryars, Ryan EALgranted 2020-05-18cancelled 2020-07-21
Successor callsigns
Callsigns held now by people who previously held N4ZQF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4ZQF, oldest first.
- Grantham, Robert W AL2010-09-08 → cancelled 2018-08-06
- Bryars, Ryan E AL2020-07-21 active