Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4HA callsign genealogy
Currently held by Orobio-Parra, Gonzalo
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 WP4HA's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WP4HA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WP4HA, oldest first.
- Orobio-Parra, Gonzalo PR2005-03-01 → cancelled 2017-03-02
- Schram, Roxana A PR2024-01-23 active