uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

K1ROS callsign genealogy

Currently held by ROSS, MARK K

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 K1ROS's current licensee, walking backwards.

  1. N0NBIcancelled· G
    ROSS, MARK KFLgranted 2002-01-11cancelled 2008-02-26
  2. KB0IFV
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held K1ROS.

No current licensee on record previously held this callsign.

← Back to K1ROS License history →