Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4DR callsign genealogy
Currently held by Perez Vargas, Wilfredo J
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 WP4DR's current licensee, walking backwards.
- Perez Vargas, Wilfredo JPRgranted 2018-08-07cancelled 2024-10-22
Successor callsigns
Callsigns held now by people who previously held WP4DR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4DR, oldest first.
- PINERO, MONSERRATE PR2007-02-07 → cancelled 2019-04-17
- Perez Vargas, Wilfredo J PR2024-10-22 active