Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4ZZX callsign genealogy
Currently held by Thompson, Margaret M
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 N4ZZX's current licensee, walking backwards.
- Thompson, Margaret MGAgranted 2018-06-04cancelled 2020-11-03
Successor callsigns
Callsigns held now by people who previously held N4ZZX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4ZZX, oldest first.
- LONG, ALICIA G GA2000-07-06 → cancelled 2012-08-08
- Thompson, Margaret M GA2020-11-03 active