Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5ATO callsign genealogy
Currently held by CARTER, DON 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 K5ATO's current licensee, walking backwards.
- Maier, Chris ATXgranted 2011-09-01cancelled 2013-10-01
Successor callsigns
Callsigns held now by people who previously held K5ATO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5ATO, oldest first.
- CARTER, DON L CA1994-05-31 → cancelled 2006-06-01
- Maier, Chris A TX2024-06-28 active