Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4JRF callsign genealogy
Currently held by MEDINA, FRANCISCO
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 WP4JRF's current licensee, walking backwards.
- FUENTES, JOSE RPRgranted 2020-09-30cancelled 2020-10-20
Successor callsigns
Callsigns held now by people who previously held WP4JRF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4JRF, oldest first.
- MEDINA, FRANCISCO PR2001-07-31 → cancelled 2012-12-27
- FUENTES, JOSE R PR2020-10-20 active