Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4PUT callsign genealogy
Currently held by DELGADO RIVERA, MARIA C
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 WP4PUT's current licensee, walking backwards.
- DELGADO RIVERA, MARIA CPRgranted 2016-03-10cancelled 2017-05-31
Successor callsigns
Callsigns held now by people who previously held WP4PUT.
- DELGADO RIVERA, MARIA CPRgranted 2017-06-24