Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4KSK callsign genealogy
Currently held by ALVARADO, GUARIONEX
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 W4KSK's current licensee, walking backwards.
- ALVARADO ADORNO, GUARIONEXFLgranted 2002-03-27cancelled 2007-09-11
Successor callsigns
Callsigns held now by people who previously held W4KSK.
No current licensee on record previously held this callsign.