Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4EFM callsign genealogy
Currently held by STEEN SR, JERALD W
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 K4EFM's current licensee, walking backwards.
- STEEN SR, JERALD WFLgranted 1998-02-26cancelled 2000-05-16
Successor callsigns
Callsigns held now by people who previously held K4EFM.
No current licensee on record previously held this callsign.