Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6EFX callsign genealogy
Currently held by Coomer, David T
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 N6EFX's current licensee, walking backwards.
- Coomer, David TCAgranted 2010-10-04cancelled 2010-11-19
Successor callsigns
Callsigns held now by people who previously held N6EFX.
- Coomer, David TIDgranted 2019-04-19
All historical holders
Every license row we've seen with the callsign N6EFX, oldest first.
- WILDER SR, ROBERT D CA1995-07-25 → cancelled 2007-07-26
- Coomer, David T ID2010-11-19 → cancelled 2019-04-19