Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4RH callsign genealogy
Currently held by ESPADA, ALHI
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 KP4RH's current licensee, walking backwards.
- WP4TFHcancelledRadios Operadores De Hatillo IncPRgranted 2024-03-14cancelled 2024-04-02
Successor callsigns
Callsigns held now by people who previously held KP4RH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4RH, oldest first.
- ESPADA, ALHI PR2001-05-30 → cancelled 2013-08-28
- Radios Operadores De Hatillo Inc PR2024-04-02 active