Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6SDV callsign genealogy
Currently held by JOHNSON, MARY
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 N6SDV's current licensee, walking backwards.
- Chapman, Victoria LCAgranted 2022-07-09cancelled 2022-07-30
Successor callsigns
Callsigns held now by people who previously held N6SDV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6SDV, oldest first.
- JOHNSON, MARY NV1993-03-16 → cancelled 2005-03-17
- Chapman, Victoria L CA2022-07-30 active