Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE4OZS callsign genealogy
Currently held by PIERCE, DAVID P
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 KE4OZS's current licensee, walking backwards.
- Pierce, Jonathan DKYgranted 2022-03-15cancelled 2022-04-15
Successor callsigns
Callsigns held now by people who previously held KE4OZS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KE4OZS, oldest first.
- PIERCE, DAVID P KY2014-05-20 → cancelled 2020-11-14
- Pierce, Jonathan D KY2022-04-15 active