Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NU4S callsign genealogy
Currently held by SHEPARD, RICHARD D
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 NU4S's current licensee, walking backwards.
- KN4HIno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held NU4S.
No current licensee on record previously held this callsign.