Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4LSO callsign genealogy
Currently held by Harman, Samuel 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 N4LSO's current licensee, walking backwards.
- Harman, Samuel JVAgranted 2023-10-24cancelled 2023-11-14
Successor callsigns
Callsigns held now by people who previously held N4LSO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4LSO, oldest first.
- WILLEVER, JOHN C VA2005-05-03 → cancelled 2017-05-04
- Harman, Samuel J VA2023-11-14 active