Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JBU callsign genealogy
Currently held by Owen, Carlisle 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 W4JBU's current licensee, walking backwards.
- CHASTAIN, JOHN DGAgranted 2015-11-02cancelled 2015-11-21
Successor callsigns
Callsigns held now by people who previously held W4JBU.
All historical holders
Every license row we've seen with the callsign W4JBU, oldest first.
- Owen, Carlisle C FL2006-01-10 → cancelled 2013-03-19
- CHASTAIN, JOHN D GA2015-11-21 → cancelled 2015-12-11