Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4GCJ callsign genealogy
Currently held by Calendar, George
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 N4GCJ's current licensee, walking backwards.
- Calendar, GeorgeFLgranted 2014-11-13cancelled 2019-07-06
Successor callsigns
Callsigns held now by people who previously held N4GCJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4GCJ, oldest first.
- KEY, WILLIAM N NM1996-07-29 → cancelled 2008-07-30
- Calendar, George FL2019-07-06 active