Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4AM callsign genealogy
Currently held by MOLINA, ARMINDO
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 WP4AM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WP4AM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4AM, oldest first.
- Maldonado-Santana, Luis O PR2004-04-29 → cancelled 2016-04-30
- MOLINA, ARMINDO PR2026-08-28 active