Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0AMT callsign genealogy
Currently held by Helton, Colt C
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 K0AMT's current licensee, walking backwards.
- Helton, Colt CGAgranted 2016-08-23cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held K0AMT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0AMT, oldest first.
- LEUPP, HENRY P ND2012-11-24 → cancelled 2024-12-04
- Helton, Colt C GA2025-12-09 active