Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OJM callsign genealogy
Currently held by monroe III, Owen 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 K4OJM's current licensee, walking backwards.
- Monroe III, Owen JGAgranted 2013-11-21cancelled 2022-07-26
Successor callsigns
Callsigns held now by people who previously held K4OJM.
No current licensee on record previously held this callsign.