Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MAC callsign genealogy
Currently held by LENHART JR, JOHN M
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 K4MAC's current licensee, walking backwards.
- Allen, Adam WNCgranted 2016-10-18cancelled 2017-02-24
Successor callsigns
Callsigns held now by people who previously held K4MAC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4MAC, oldest first.
- LENHART JR, JOHN M FL2004-12-08 → cancelled 2017-02-03
- Allen, Adam W NC2017-02-24 active