Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK4EW callsign genealogy
Currently held by Corcoran, Marvin D
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 KK4EW's current licensee, walking backwards.
- Corcoran, Marvin DORgranted 2024-10-08cancelled 2025-01-25
Successor callsigns
Callsigns held now by people who previously held KK4EW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KK4EW, oldest first.
- ESPRIELLA, MICHAEL J GA2012-10-15 → cancelled 2024-12-24
- Corcoran, Marvin D OR2025-01-25 active