Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NB4J callsign genealogy
Currently held by Hickman, Nathan C
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 NB4J's current licensee, walking backwards.
- Hickman, Nathan CALgranted 2003-02-25cancelled 2010-07-27
Successor callsigns
Callsigns held now by people who previously held NB4J.
- Kelley, David FPAgranted 2018-05-09
All historical holders
Every license row we've seen with the callsign NB4J, oldest first.
- Kelley, David F PA2003-07-01 → cancelled 2008-07-08
- Hickman, Nathan C AL2020-07-09 active