Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0UMC callsign genealogy
Currently held by Jackson, Matthew 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 KC0UMC's current licensee, walking backwards.
- Jackson, Matthew TMOgranted 2017-06-15cancelled 2017-07-04
Successor callsigns
Callsigns held now by people who previously held KC0UMC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC0UMC, oldest first.
- JACKSON, MATTHEW T MO2005-05-17 → cancelled 2017-05-18
- Jackson, Matthew T MO2017-07-04 active