Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4YZI callsign genealogy
Currently held by McDevitt, James 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 K4YZI's current licensee, walking backwards.
- McDevitt, James JFLgranted 2020-08-10cancelled 2020-09-18
Successor callsigns
Callsigns held now by people who previously held K4YZI.
No current licensee on record previously held this callsign.