Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4ZZN callsign genealogy
Currently held by Geist, Gregory
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 N4ZZN's current licensee, walking backwards.
- Geist, GregoryFLgranted 2014-05-19cancelled 2014-09-13
Successor callsigns
Callsigns held now by people who previously held N4ZZN.
- Atkins Jr, John KALgranted 2015-04-28
All historical holders
Every license row we've seen with the callsign N4ZZN, oldest first.
- ATKINS JR, JOHN K AL2001-02-27 → cancelled 2005-06-18
- Geist, Gregory FL2024-06-18 active