Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4FD callsign genealogy
Currently held by ORTIZ PAGAN, EUGENIO
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 WP4FD's current licensee, walking backwards.
- Rivera-Ramirez, Osvaldo JPRgranted 2018-06-12cancelled 2018-07-03
Successor callsigns
Callsigns held now by people who previously held WP4FD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4FD, oldest first.
- ORTIZ PAGAN, EUGENIO PR2004-09-13 → cancelled 2016-09-14
- RIVERA RAMIREZ, OSVALDO PR2018-07-03 active