Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP3CJ callsign genealogy
Currently held by MARRERO RODRIGUEZ, HIRAM
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 NP3CJ's current licensee, walking backwards.
- COLLAZO, JORGE FPRgranted 2018-05-07cancelled 2018-06-16
Successor callsigns
Callsigns held now by people who previously held NP3CJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP3CJ, oldest first.
- MARRERO RODRIGUEZ, HIRAM PR1999-03-26 → cancelled 2001-01-03
- COLLAZO, JORGE F PR2018-06-16 active