Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OAT callsign genealogy
Currently held by Oates, Thomas 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 K4OAT's current licensee, walking backwards.
- Oates, ThomasFLgranted 2008-08-19cancelled 2008-09-09
Successor callsigns
Callsigns held now by people who previously held K4OAT.
No current licensee on record previously held this callsign.