Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4JON callsign genealogy
Currently held by Newsom, Jon D
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 KA4JON's current licensee, walking backwards.
- LIPSCOMB JR, JOHN WGAgranted 2018-01-24cancelled 2018-02-13
Successor callsigns
Callsigns held now by people who previously held KA4JON.
- Newsom, Jonathan DALgranted 2024-08-20
All historical holders
Every license row we've seen with the callsign KA4JON, oldest first.
- Newsom, Jon D AL2014-08-05 → cancelled 2014-08-19
- LIPSCOMB JR, JOHN W GA2018-02-13 active