Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4JCR callsign genealogy
Currently held by LAUREANU, MARIA I
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 WP4JCR's current licensee, walking backwards.
- CORTES RIVERA, JUAN APRgranted 2018-08-20cancelled 2023-09-09
Successor callsigns
Callsigns held now by people who previously held WP4JCR.
- CORTES RIVERA, JUAN APRgranted 2025-06-27
All historical holders
Every license row we've seen with the callsign WP4JCR, oldest first.
- LAUREANU, MARIA I PR1990-07-03 → cancelled 2002-07-04
- CORTES RIVERA, JUAN A PR2023-09-09 → cancelled 2025-06-27