Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4DA callsign genealogy
Currently held by RIVERA GALLETTI SR, LUIS A
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 WP4DA's current licensee, walking backwards.
- Abreu-Caraballo, Denisse EPRgranted 2018-07-10cancelled 2018-08-28
Successor callsigns
Callsigns held now by people who previously held WP4DA.
- Rivera Galletti Sr, Luis ACTgranted 2022-03-30
All historical holders
Every license row we've seen with the callsign WP4DA, oldest first.
- RIVERA GALLETTI SR, LUIS A PR2002-08-19 → cancelled 2012-01-10
- Abreu-Caraballo, Denisse E PR2018-08-28 active