Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4JCR callsign genealogy
Currently held by ROMAN, JUAN C
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 KP4JCR's current licensee, walking backwards.
- ROMAN, JUAN CPRgranted 2022-11-09cancelled 2022-11-29
Successor callsigns
Callsigns held now by people who previously held KP4JCR.
- Cruz, JuanFLgranted 2021-02-12
All historical holders
Every license row we've seen with the callsign KP4JCR, oldest first.
- Cruz, Juan PR2010-12-14 → cancelled 2011-03-22
- ROMAN, JUAN C PR2022-11-29 active