Confidence: Medium · Source: FCC ULS · As of 2026-09-15
W5KKY callsign genealogy
Currently held by ARMSTRONG, BILLY 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 W5KKY's current licensee, walking backwards.
- ARMSTRONG, BILLY ROKgranted 2013-02-26cancelled 2014-05-13
Successor callsigns
Callsigns held now by people who previously held W5KKY.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5KKY, oldest first.
- MC CAUSE, JOHN R OK2000-04-04 → cancelled 2012-04-05
- ARMSTRONG, BILLY R OK2014-05-13 → cancelled 2026-05-14