Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4SMK callsign genealogy
Currently held by GRASMICK, BRENT D
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 KB4SMK's current licensee, walking backwards.
- Grasmick, Brent DCOgranted 2017-09-05cancelled 2017-09-26
Successor callsigns
Callsigns held now by people who previously held KB4SMK.
- MURRELL, FAYE DFLgranted 2011-06-02cancelled 2023-09-01