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

K4MFX callsign genealogy

Currently held by DAMON, RICK

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 K4MFX's current licensee, walking backwards.

  1. N1MFXcancelled· G
    DAMON, RICKRIgranted 2021-01-01cancelled 2021-06-11
  2. W4RKDactive· T
    Feyler, David KFLgranted 2026-03-31
  3. KR4KJDcancelled· T
    Feyler, David KFLgranted 2026-03-10cancelled 2026-03-31

Successor callsigns

Callsigns held now by people who previously held K4MFX.

  1. N1MFXcancelled· G
    DAMON, RICKFLgranted 2004-07-24cancelled 2006-05-16
← Back to K4MFX License history →