Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4ET callsign genealogy
Currently held by RIVERA, ANTONIO
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 KP4ET's current licensee, walking backwards.
- RIVERA RIVERA, ANTONIOPRgranted 2013-12-16cancelled 2015-01-06
Successor callsigns
Callsigns held now by people who previously held KP4ET.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4ET, oldest first.
- LOPEZ, JOAQUIN PR1996-08-14 → cancelled 2008-08-15
- RIVERA, ANTONIO PR2024-10-12 active