Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4HR callsign genealogy
Currently held by Rios-Hernandez, Heiden S
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 WP4HR's current licensee, walking backwards.
- Rios-Hernandez, Heiden SPRgranted 2015-11-03cancelled 2015-12-01
Successor callsigns
Callsigns held now by people who previously held WP4HR.
No current licensee on record previously held this callsign.