Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4AS callsign genealogy
Currently held by TORRES MEDINA SR, BASILISO
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 KP4AS's current licensee, walking backwards.
- Almenas Sosa, Francisco JPRgranted 2001-11-16cancelled 2011-09-02
- WP4FWWno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KP4AS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KP4AS, oldest first.
- TORRES MEDINA SR, BASILISO PR1998-12-30 → cancelled 2010-12-31
- Almenas Sosa, Francisco J PR2021-09-01 active