Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4CUB callsign genealogy
Currently held by HALSEY, DEREK 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 KF4CUB's current licensee, walking backwards.
- HALSEY, DEREK RVAgranted 2005-09-16cancelled 2015-10-14
Successor callsigns
Callsigns held now by people who previously held KF4CUB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4CUB, oldest first.
- HEFLIN, LACEY K AL1995-08-22 → cancelled 2007-08-23
- HALSEY, DEREK R VA2015-10-14 active