Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4LRP callsign genealogy
Currently held by Perez-Alfonzo, Luis 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 WP4LRP's current licensee, walking backwards.
- Perez-Alfonzo, Luis RPRgranted 2017-11-30cancelled 2018-01-17
Successor callsigns
Callsigns held now by people who previously held WP4LRP.
- Perez-Alfonzo, Luis RPRgranted 2018-05-19
All historical holders
Every license row we've seen with the callsign WP4LRP, oldest first.
- DEL SERRANO, MARIA PR1993-01-12 → cancelled 2005-01-13
- Perez-Alfonzo, Luis R PR2018-01-17 → cancelled 2018-05-19