Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3USR callsign genealogy
Currently held by Meyer, John A
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 K3USR's current licensee, walking backwards.
- Meyer, John AMDgranted 2023-12-06cancelled 2024-01-17
Successor callsigns
Callsigns held now by people who previously held K3USR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3USR, oldest first.
- Meyer, John A MD2008-10-02 → cancelled 2020-12-31
- Meyer, John A MD2024-01-17 active