Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4WW callsign genealogy
Currently held by Trujillo Alto Contest Club
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 WP4WW's current licensee, walking backwards.
- WP4NSPcancelledTrujillo Alto Contest ClubPRgranted 2006-07-17cancelled 2006-09-01
Successor callsigns
Callsigns held now by people who previously held WP4WW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4WW, oldest first.
- VAZQUEZ, REINA PR1989-09-26 → cancelled 2001-09-27
- Trujillo Alto Contest Club PR2026-09-02 active