Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4AMC callsign genealogy
Currently held by Morales, Athos 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 KP4AMC's current licensee, walking backwards.
- Medina-Cotto, ArnaldyPRgranted 2014-07-29cancelled 2015-01-03
Successor callsigns
Callsigns held now by people who previously held KP4AMC.
- Morales, Athos JPRgranted 2008-01-25cancelled 2017-08-18
All historical holders
Every license row we've seen with the callsign KP4AMC, oldest first.
- Morales, Athos J PR2005-03-02 → cancelled 2008-01-25
- Medina-Cotto, Arnaldy RI2025-01-22 active