Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4BRB callsign genealogy
Currently held by BILLINGTON, WILLIAM 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 N4BRB's current licensee, walking backwards.
- Schmidt, Schyler JCOgranted 2008-11-20cancelled 2018-08-14
Successor callsigns
Callsigns held now by people who previously held N4BRB.
- BILLINGTON, WILLIAM RTXgranted 2008-05-10cancelled 2011-04-26
All historical holders
Every license row we've seen with the callsign N4BRB, oldest first.
- JONES, CLARENCE E FL1994-05-24 → cancelled 2006-05-25
- BILLINGTON, WILLIAM R AZ2007-02-13 → cancelled 2008-05-10
- Schmidt, Schyler J CO2018-08-14 active