Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6OOS callsign genealogy
Currently held by GUNDERSON, CATHARINE 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 N6OOS's current licensee, walking backwards.
- Ford, JonCAgranted 2020-10-26cancelled 2020-11-17
Successor callsigns
Callsigns held now by people who previously held N6OOS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6OOS, oldest first.
- GUNDERSON, CATHARINE A CA1996-08-28 → cancelled 2008-08-29
- Ford, Jon S CA2020-11-17 active