Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0RG callsign genealogy
Currently held by Lefkoff, Henry J
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 K0RG's current licensee, walking backwards.
- Lefkoff, Henry JCOgranted 2022-04-04cancelled 2024-09-14
Successor callsigns
Callsigns held now by people who previously held K0RG.
- LARIMORE, JEFFREY AAZgranted 2022-08-26cancelled 2022-12-09
All historical holders
Every license row we've seen with the callsign K0RG, oldest first.
- GREENBURY, RICHARD F MO1998-12-10 → cancelled 2009-06-17
- LARIMORE, JEFFREY A AZ2019-07-09 → cancelled 2022-08-26
- Lefkoff, Henry J CO2024-09-14 active