Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KZ4CW callsign genealogy
Currently held by NOBLE, ROBERT B
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 KZ4CW's current licensee, walking backwards.
- DYKE, DAVID RFLgranted 2011-10-18cancelled 2018-04-20
Successor callsigns
Callsigns held now by people who previously held KZ4CW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KZ4CW, oldest first.
- NOBLE, ROBERT B FL1997-10-30 → cancelled 2009-10-31
- DYKE, DAVID R OH2018-04-20 active