Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5ZMC callsign genealogy
Currently held by MC COWEN, JAMES R
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 N5ZMC's current licensee, walking backwards.
- Chittum, Michael SARgranted 2018-01-16cancelled 2018-02-21
Successor callsigns
Callsigns held now by people who previously held N5ZMC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5ZMC, oldest first.
- MC COWEN, JAMES R TX1992-03-10 → cancelled 2004-03-11
- Chittum, Michael S AR2018-02-21 active