Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4KKA callsign genealogy
Currently held by Malley, Robert J
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 K4KKA's current licensee, walking backwards.
- Malley, Robert JNCgranted 2013-10-28cancelled 2016-12-16
Successor callsigns
Callsigns held now by people who previously held K4KKA.
- Gibbons, Ernest RFLgranted 2010-10-05cancelled 2012-05-18
All historical holders
Every license row we've seen with the callsign K4KKA, oldest first.
- SINKANKAS, WILLIAM OK1999-04-09 → cancelled 2008-11-05
- Gibbons, Ernest R FL2010-08-07 → cancelled 2010-10-05
- Malley, Robert J NC2016-12-16 active