Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OLS callsign genealogy
Currently held by SECRIST JR, OSCAR L
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 K4OLS's current licensee, walking backwards.
- SECRIST JR, OSCAR LVAgranted 2023-08-29cancelled 2023-09-16
Successor callsigns
Callsigns held now by people who previously held K4OLS.
- Snyder, Owen LTNgranted 2021-12-20
All historical holders
Every license row we've seen with the callsign K4OLS, oldest first.
- Snyder, Owen L TN2006-03-14 → cancelled 2012-02-04
- SECRIST JR, OSCAR L VA2023-09-16 active