Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4HJ callsign genealogy
Currently held by RIVERA MANGUAL, JOSE O
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 WP4HJ's current licensee, walking backwards.
- Rosado Flores, Rafael IPRgranted 2021-07-19cancelled 2021-09-11
Successor callsigns
Callsigns held now by people who previously held WP4HJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4HJ, oldest first.
- RIVERA MANGUAL, JOSE O PR1997-02-20 → cancelled 2009-02-21
- Rosado Flores, Rafael I PR2021-09-11 active