Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4QPC callsign genealogy
Currently held by DIAZ CINTRON SR, JUAN D
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 WP4QPC's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WP4QPC.
- DIAZ CINTRON SR, JUAN DPRgranted 2018-11-27