Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4SB callsign genealogy
Currently held by BALLESTER DAVILA, STEPHANIE M
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 WP4SB's current licensee, walking backwards.
- BALLESTER DAVILA, STEPHANIE MPRgranted 2023-06-27cancelled 2023-08-01
Successor callsigns
Callsigns held now by people who previously held WP4SB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4SB, oldest first.
- CRUZ, ANGEL PR1988-11-22 → cancelled 2000-11-28
- BALLESTER DAVILA, STEPHANIE M PR2023-08-01 active