Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6OS callsign genealogy
Currently held by Encinitas DX Club
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 K6OS's current licensee, walking backwards.
- KF6WOKcancelledcancelled 1999-07-09
Successor callsigns
Callsigns held now by people who previously held K6OS.
No current licensee on record previously held this callsign.