uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KO9J callsign genealogy

Currently held by MC COY, FRANK G

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 KO9J's current licensee, walking backwards.

  1. KA9LSW
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held KO9J.

No current licensee on record previously held this callsign.

← Back to KO9J License history →