Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4BR callsign genealogy
Currently held by DIAZ, LUIS M
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 KP4BR's current licensee, walking backwards.
- RIVERA GONZALEZ, JOSE GPRgranted 2020-03-02cancelled 2022-04-23
Successor callsigns
Callsigns held now by people who previously held KP4BR.
- BETANCOURT MR, JOSEPH ACAgranted 2017-06-09
All historical holders
Every license row we've seen with the callsign KP4BR, oldest first.
- DIAZ, LUIS M CA1995-11-28 → cancelled 2007-11-29
- BETANCOURT MR, JOSEPH A CA2008-12-16 → cancelled 2017-06-09
- RIVERA GONZALEZ, JOSE G PR2022-04-23 active