Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4SBT callsign genealogy
Currently held by KIRK, ROBERT A
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 K4SBT's current licensee, walking backwards.
- KIRK, ROBERT AFLgranted 2003-06-24cancelled 2004-09-10
Successor callsigns
Callsigns held now by people who previously held K4SBT.
No current licensee on record previously held this callsign.