Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WP4PDQ callsign genealogy
Currently held by SANTANA PEREZ, RICARDO
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 WP4PDQ'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 WP4PDQ.
- SANTANA PEREZ, RICARDOPRgranted 2025-07-16