Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4PTN callsign genealogy
Currently held by Mierop, Clay W
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 K4PTN's current licensee, walking backwards.
- Mierop, Clay WCAgranted 2016-10-18cancelled 2016-11-05
Successor callsigns
Callsigns held now by people who previously held K4PTN.
- HEGYI, NORMAN LALgranted 2025-11-27
All historical holders
Every license row we've seen with the callsign K4PTN, oldest first.
- HEGYI, NORMAN L TN2003-08-26 → cancelled 2006-01-10
- Mierop, Clay W CA2016-11-05 active