Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9OLS callsign genealogy
Currently held by Ols, Darryl
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 K9OLS's current licensee, walking backwards.
- Ols, DarrylILgranted 2021-04-26cancelled 2022-02-05
Successor callsigns
Callsigns held now by people who previously held K9OLS.
No current licensee on record previously held this callsign.