Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4GNU callsign genealogy
Currently held by BREITHAUPT, PATRICK L
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 N4GNU's current licensee, walking backwards.
- BREITHAUPT, PATRICK LALgranted 2002-04-25cancelled 2002-05-21
Successor callsigns
Callsigns held now by people who previously held N4GNU.
No current licensee on record previously held this callsign.