Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4QEF callsign genealogy
Currently held by LUIS ROSADO, ALBIN M
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 WP4QEF'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 WP4QEF.
- LUIS ROSADO, ALBIN MPRgranted 2018-07-31