Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0SUP callsign genealogy
Currently held by CRANDALL, BRIAN 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 K0SUP's current licensee, walking backwards.
- CRANDALL, BRIAN DCOgranted 2014-02-18cancelled 2017-09-26
Successor callsigns
Callsigns held now by people who previously held K0SUP.
No current licensee on record previously held this callsign.