Confidence: Medium · Source: FCC ULS · As of 2026-09-11
N5DOC callsign genealogy
Currently held by DAVIS, WILLIAM M
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 N5DOC's current licensee, walking backwards.
- Knapp, Eric DARgranted 2020-05-21cancelled 2020-06-16
Successor callsigns
Callsigns held now by people who previously held N5DOC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5DOC, oldest first.
- DAVIS, WILLIAM M AR1995-11-28 → cancelled 2007-11-29
- HALL, JACK D FL2008-05-17 → cancelled 2020-05-19
- Knapp, Eric D AR2020-06-16 active