Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0XTC callsign genealogy
Currently held by Callen, Tom 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 K0XTC's current licensee, walking backwards.
- Callen, Tom MNEgranted 2018-02-09cancelled 2018-02-27
Successor callsigns
Callsigns held now by people who previously held K0XTC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0XTC, oldest first.
- WINGATE, AMANDA J IA2000-03-21 → cancelled 2012-03-22
- Callen, Tom M NE2018-02-27 active