Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4JNC callsign genealogy
Currently held by CAVALLIERY, JOSE 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 WP4JNC's current licensee, walking backwards.
- Rivera-Vazquez, Juan CPRgranted 2018-11-13cancelled 2018-12-27
Successor callsigns
Callsigns held now by people who previously held WP4JNC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4JNC, oldest first.
- CAVALLIERY, JOSE M PR2000-08-03 → cancelled 2012-10-31
- Rivera-Vazquez, Juan C PR2018-12-27 active