Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4VFD callsign genealogy
Currently held by Citkovic, Robert A
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 KJ4VFD's current licensee, walking backwards.
- Citkovic, Robert ATNgranted 2010-04-19cancelled 2010-05-08
Successor callsigns
Callsigns held now by people who previously held KJ4VFD.
- Citkovic, Robert ATNgranted 2011-10-21cancelled 2023-10-24