Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG5ZL callsign genealogy
Currently held by Buehler, Markus
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 AG5ZL's current licensee, walking backwards.
- Buehler, MarkusTXgranted 2019-11-12cancelled 2020-06-27
Successor callsigns
Callsigns held now by people who previously held AG5ZL.
No current licensee on record previously held this callsign.