Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4TZA callsign genealogy
Currently held by BRITTAIN, DAVID C
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 W4TZA's current licensee, walking backwards.
- Brittain, David CNCgranted 2019-04-17cancelled 2019-10-04
Successor callsigns
Callsigns held now by people who previously held W4TZA.
- MOORE SR, WILLIAM JNCgranted 2017-08-25cancelled 2020-06-30
All historical holders
Every license row we've seen with the callsign W4TZA, oldest first.
- MOORE SR, WILLIAM J NC2016-06-03 → cancelled 2017-08-25
- BRITTAIN, DAVID C NC2019-10-04 active