Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4NBA callsign genealogy
Currently held by PADILLA, LUIS 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 WP4NBA's current licensee, walking backwards.
- PADILLA, LUIS APRgranted 2026-08-06cancelled 2026-08-25
Successor callsigns
Callsigns held now by people who previously held WP4NBA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4NBA, oldest first.
- COLON, JORGE L PR2005-08-31 → cancelled 2017-08-24
- PADILLA, LUIS A PR2026-08-25 active