Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3MC callsign genealogy
Currently held by CHEPONIS, MIKE
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 K3MC's current licensee, walking backwards.
- Goldenburg, Timothy ATXgranted 2010-02-02cancelled 2018-06-09
Successor callsigns
Callsigns held now by people who previously held K3MC.
- Cheponis, MichaelCAgranted 2026-05-07
All historical holders
Every license row we've seen with the callsign K3MC, oldest first.
- CHEPONIS, MIKE CA2013-01-24 → cancelled 2016-05-21
- Goldenburg, Timothy A MI2018-06-09 active