Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WA4JFB callsign genealogy
Currently held by Byrne, Joseph F
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 WA4JFB's current licensee, walking backwards.
- Byrne, Joseph FTNgranted 2019-07-30cancelled 2019-11-19
Successor callsigns
Callsigns held now by people who previously held WA4JFB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA4JFB, oldest first.
- PARSONS, SUSAN J KY2006-07-10 → cancelled 2018-07-17
- Byrne, Joseph F TN2019-11-19 active