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

N4FMJ callsign genealogy

Currently held by ESTES, JUSTIN M

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 N4FMJ's current licensee, walking backwards.

  1. KI4ZLCcancelled· T
    ESTES, JUSTIN MFLgranted 2018-03-30cancelled 2018-09-28
  2. KF4MGBcancelled· T
    ESTES, JUSTIN MFLgranted 2016-06-29cancelled 2018-03-30

Successor callsigns

Callsigns held now by people who previously held N4FMJ.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N4FMJ, oldest first.

  • MORAN, DAVID J FL
    1999-01-05 → cancelled 2011-01-06
  • ESTES, JUSTIN M FL
    2018-09-28 active
← Back to N4FMJ License history →