Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4BBN callsign genealogy
Currently held by CABRERA, 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 KP4BBN's current licensee, walking backwards.
- Cabrera, Maritza CFLgranted 2006-08-11cancelled 2006-09-02
Successor callsigns
Callsigns held now by people who previously held KP4BBN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4BBN, oldest first.
- CABRERA, LUIS M PR1988-03-29 → cancelled 2000-03-30
- CABRERA, MARITZA C NC2026-09-02 active