Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N3FD callsign genealogy
Currently held by DAVIS, FREDERICK W
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 N3FD's current licensee, walking backwards.
- SPENCER III, CLINTON RPAgranted 1998-09-15cancelled 2002-03-19
Successor callsigns
Callsigns held now by people who previously held N3FD.
- DAVIS, FREDERICK WFLgranted 1999-11-30cancelled 2000-04-11
All historical holders
Every license row we've seen with the callsign N3FD, oldest first.
- DAVIS, FREDERICK W FL1999-05-21 → cancelled 1999-11-30
- SPENCER III, CLINTON R PA2022-02-01 active