Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4LBJ callsign genealogy
Currently held by COOPER IV, CLARENCE 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 N4LBJ's current licensee, walking backwards.
- COOPER IV, CLARENCE DNCgranted 2014-01-09cancelled 2014-08-15
Successor callsigns
Callsigns held now by people who previously held N4LBJ.
- COOPER, CLARENCE DNCgranted 2006-10-11cancelled 2018-07-31