Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4DLF callsign genealogy
Currently held by SHEPHERD, WILLIAM 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 N4DLF's current licensee, walking backwards.
- FERNANDEZ, DON LVAgranted 2009-03-16cancelled 2012-08-31
Successor callsigns
Callsigns held now by people who previously held N4DLF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4DLF, oldest first.
- SHEPHERD, WILLIAM C AL1996-01-17 → cancelled 2008-01-18
- FERNANDEZ, DON L NY2023-08-22 active