Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4JHR callsign genealogy
Currently held by Fehler Jr, Byron G
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 K4JHR's current licensee, walking backwards.
- ROWE, JACKIE HNCgranted 2018-04-30cancelled 2018-05-22
Successor callsigns
Callsigns held now by people who previously held K4JHR.
- ROWE, JACKIE HNCgranted 2018-11-24
All historical holders
Every license row we've seen with the callsign K4JHR, oldest first.
- Fehler Jr, Byron G KY2005-05-17 → cancelled 2017-08-03
- ROWE, JACKIE H NC2018-05-22 → cancelled 2018-11-24