Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4XZS callsign genealogy
Currently held by JONES, ROBERT 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 N4XZS's current licensee, walking backwards.
- Jones, Mark MFLgranted 2018-07-05cancelled 2019-02-01
Successor callsigns
Callsigns held now by people who previously held N4XZS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4XZS, oldest first.
- JONES, ROBERT C FL2011-08-02 → cancelled 2017-01-27
- Jones, Mark M FL2019-02-01 active