Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4CIJ callsign genealogy
Currently held by Ross III, William 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 K4CIJ's current licensee, walking backwards.
- Ross III, William FSCgranted 2021-03-03cancelled 2021-04-09
Successor callsigns
Callsigns held now by people who previously held K4CIJ.
No current licensee on record previously held this callsign.