Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC4ZF callsign genealogy
Currently held by GORAUM, CLAYTON F
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 KC4ZF's current licensee, walking backwards.
- O GRADY, EDWARD TGAgranted 2012-06-29cancelled 2012-07-17
Successor callsigns
Callsigns held now by people who previously held KC4ZF.
- O GRADY, EDWARD TGAgranted 2018-12-04
All historical holders
Every license row we've seen with the callsign KC4ZF, oldest first.
- GORAUM, CLAYTON F FL1992-06-30 → cancelled 2004-07-01
- O GRADY, EDWARD T GA2012-07-17 → cancelled 2018-12-04