Confidence: Medium · Source: FCC ULS · As of 2026-09-11
K4MPK callsign genealogy
Currently held by BELTON, RONALD L
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 K4MPK's current licensee, walking backwards.
- Kaplan, Marc PNCgranted 2013-03-07cancelled 2013-04-26
Successor callsigns
Callsigns held now by people who previously held K4MPK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4MPK, oldest first.
- BELTON, RONALD L TN2000-10-03 → cancelled 2012-10-04
- Kaplan, Marc P NC2013-04-26 → cancelled 2025-04-29