Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4RBJ callsign genealogy
Currently held by NELSON, JERRY
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 W4RBJ's current licensee, walking backwards.
- Jeffery, Robert BVAgranted 2018-11-13cancelled 2021-02-23
Successor callsigns
Callsigns held now by people who previously held W4RBJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4RBJ, oldest first.
- NELSON, JERRY AL2008-06-11 → cancelled 2020-07-25
- Jeffery, Robert B VA2021-02-23 active