Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4XC callsign genealogy
Currently held by Rivera-Santana, Jose W
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 WP4XC's current licensee, walking backwards.
- Rivera-Santana, Jose WPRgranted 2008-05-06cancelled 2016-02-19
Successor callsigns
Callsigns held now by people who previously held WP4XC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4XC, oldest first.
- SEGARRA, JOSE A PR1999-11-24 → cancelled 2011-11-08
- Rivera-Santana, Jose W PR2026-06-17 active