Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OCA callsign genealogy
Currently held by Cooley, David M
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 K4OCA's current licensee, walking backwards.
- Little, WoodrowFLgranted 2025-02-21cancelled 2025-03-29
Successor callsigns
Callsigns held now by people who previously held K4OCA.
- Cooley, David MALgranted 2018-09-22
All historical holders
Every license row we've seen with the callsign K4OCA, oldest first.
- Cooley, David M AL2018-07-20 → cancelled 2018-09-22
- Little, Woodrow FL2025-03-29 active