Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4JOI callsign genealogy
Currently held by Branton, Rudolph A
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 W4JOI's current licensee, walking backwards.
- Branton, Rudolph AFLgranted 2020-07-07cancelled 2020-08-11
Successor callsigns
Callsigns held now by people who previously held W4JOI.
No current licensee on record previously held this callsign.