Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4AC callsign genealogy
Currently held by TORRES CASTRO, RAFAEL 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 WP4AC's current licensee, walking backwards.
- Agosto-Gautier, Carlos LPRgranted 2010-12-01cancelled 2015-09-29
Successor callsigns
Callsigns held now by people who previously held WP4AC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4AC, oldest first.
- TORRES CASTRO, RAFAEL A PR1996-08-08 → cancelled 2008-08-09
- Agosto-Gautier, Carlos L PR2026-05-22 active