Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4RBT callsign genealogy
Currently held by Belen, Ricardo
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 KP4RBT's current licensee, walking backwards.
- Belen-Tirado, RicardoPRgranted 2018-06-12cancelled 2018-11-02
Successor callsigns
Callsigns held now by people who previously held KP4RBT.
No current licensee on record previously held this callsign.