Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4DVX callsign genealogy
Currently held by Cybulski, Phillip 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 K4DVX's current licensee, walking backwards.
- Cybulski, Phillip JFLgranted 2015-10-09cancelled 2015-10-31
Successor callsigns
Callsigns held now by people who previously held K4DVX.
No current licensee on record previously held this callsign.