Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5FRH callsign genealogy
Currently held by Hart, Frederick R
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 N5FRH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N5FRH.
No current licensee on record previously held this callsign.