Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4TAZ callsign genealogy
Currently held by Hall, Calvin
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 N4TAZ's current licensee, walking backwards.
- Hall, CalvinKYgranted 2022-04-05cancelled 2022-04-23
Successor callsigns
Callsigns held now by people who previously held N4TAZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4TAZ, oldest first.
- GREENE, JAMES A FL2009-11-20 → cancelled 2022-02-15
- Hall, Calvin KY2022-04-23 active