Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4OL callsign genealogy
Currently held by PEREZ, RICARDO
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 WP4OL's current licensee, walking backwards.
- PEREZ, RICARDOPRgranted 2011-10-24cancelled 2016-03-01
Successor callsigns
Callsigns held now by people who previously held WP4OL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4OL, oldest first.
- TORRES ROMERO, WALTER J PR1998-04-08 → cancelled 2010-04-09
- PEREZ, RICARDO PR2026-02-19 active