Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4PUG callsign genealogy
Currently held by RIVERA CRUZ, FREDDIE J
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 WP4PUG's current licensee, walking backwards.
- RIVERA CRUZ, FREDDIE JPRgranted 2017-02-13cancelled 2017-02-15
Successor callsigns
Callsigns held now by people who previously held WP4PUG.
No current licensee on record previously held this callsign.