Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4SBR callsign genealogy
Currently held by RANDOLPH, SEDRECK 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 K4SBR's current licensee, walking backwards.
- RANDOLPH, SEDRECK AVAgranted 2021-09-17cancelled 2021-10-05
Successor callsigns
Callsigns held now by people who previously held K4SBR.
No current licensee on record previously held this callsign.