Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NV4Z callsign genealogy
Currently held by NV4Z ARC
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 NV4Z's current licensee, walking backwards.
- KN4QOWcancelledNV4Z ARCFLgranted 2018-11-20cancelled 2018-12-21
Successor callsigns
Callsigns held now by people who previously held NV4Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NV4Z, oldest first.
- Tomlinson, MARY L FL2017-04-11 → cancelled 2018-07-21
- NV4Z ARC TX2018-12-21 active