Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4ACA callsign genealogy
Currently held by MARTIN, JOHN T
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 N4ACA's current licensee, walking backwards.
- Moore Jr, Michael HALgranted 2024-08-20cancelled 2024-09-07
Successor callsigns
Callsigns held now by people who previously held N4ACA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4ACA, oldest first.
- MARTIN, JOHN T AL2008-08-19 → cancelled 2020-08-18
- Moore Jr, Michael H AL2024-09-07 active