Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4CCK callsign genealogy
Currently held by Martin, Donald 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 K4CCK's current licensee, walking backwards.
- Martin, Donald RFLgranted 2013-10-25cancelled 2016-02-02
Successor callsigns
Callsigns held now by people who previously held K4CCK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4CCK, oldest first.
- GAUSE, DELONE C SC2000-04-28 → cancelled 2012-05-01
- Martin, Donald R FL2016-02-02 active