Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4D callsign genealogy
Currently held by PENA, JOSE R
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 WP4D's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WP4D.
No current licensee on record previously held this callsign.