Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5KMK callsign genealogy
Currently held by COX, ROBERT G
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 K5KMK's current licensee, walking backwards.
- KEESEE, MICHAEL DTXgranted 2015-08-06cancelled 2015-08-25
Successor callsigns
Callsigns held now by people who previously held K5KMK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5KMK, oldest first.
- COX, ROBERT G AR2002-07-17 → cancelled 2014-10-15
- KEESEE, MICHAEL D TX2015-08-25 active