Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4JOC callsign genealogy
Currently held by OConnell, James
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 K4JOC's current licensee, walking backwards.
- OConnell, JamesFLgranted 2023-06-30cancelled 2023-07-18
Successor callsigns
Callsigns held now by people who previously held K4JOC.
No current licensee on record previously held this callsign.