Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WP4AJ callsign genealogy
Currently held by Almenas Sosa, Francisco 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 WP4AJ's current licensee, walking backwards.
- WP4FWWno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held WP4AJ.
- Almenas Sosa, Francisco JPRgranted 2021-09-01