Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC0TLH callsign genealogy
Currently held by Berger, Alexander
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 KC0TLH's current licensee, walking backwards.
- Berger, AlexanderCAgranted 2018-06-12cancelled 2018-07-03
Successor callsigns
Callsigns held now by people who previously held KC0TLH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC0TLH, oldest first.
- Berger, Alexander MO2004-11-18 → cancelled 2016-11-19
- Berger, Alexander CA2018-07-03 active