Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4WN callsign genealogy
Currently held by NIEVES, WILFREDO
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 WP4WN's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WP4WN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4WN, oldest first.
- BENITEZ, NEREIDA PR1989-08-29 → cancelled 2001-08-30
- NIEVES, WILFREDO PR2026-01-10 active