Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4ZVO callsign genealogy
Currently held by COX, JERRY D
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 N4ZVO's current licensee, walking backwards.
- SMITH, MICHAEL ETNgranted 2011-12-10cancelled 2019-03-29
Successor callsigns
Callsigns held now by people who previously held N4ZVO.
- COX, JERRY DTNgranted 2020-09-30
All historical holders
Every license row we've seen with the callsign N4ZVO, oldest first.
- COX, JERRY D TN2010-08-16 → cancelled 2010-09-28
- SMITH, MICHAEL E TN2019-03-29 active