Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4SI callsign genealogy
Currently held by Cuevas-DeJesus, Manuel
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 WP4SI's current licensee, walking backwards.
- CUEVAS DE JESUS, MANUELPRgranted 2003-08-07cancelled 2009-01-16
Successor callsigns
Callsigns held now by people who previously held WP4SI.
- CUEVAS DE JESUS, MANUELPRgranted 2003-08-07cancelled 2009-01-16
All historical holders
Every license row we've seen with the callsign WP4SI, oldest first.
- Cuevas-DeJesus, Manuel PR1998-07-14 → cancelled 2003-08-07
- CUEVAS DE JESUS, MANUEL PR2018-12-07 active