Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SPG callsign genealogy
Currently held by GILLIAM, SHAWN P
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 K4SPG's current licensee, walking backwards.
- GILLIAM, SHAWN PFLgranted 2013-08-28cancelled 2015-02-10
Successor callsigns
Callsigns held now by people who previously held K4SPG.
No current licensee on record previously held this callsign.