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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K3EFM callsign genealogy

Currently held by Johnson, Robert A

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 K3EFM's current licensee, walking backwards.

  1. KN4ADJcancelled· G
    Abd Majid, Muhammad FarishFLgranted 2017-01-18cancelled 2017-02-07

Successor callsigns

Callsigns held now by people who previously held K3EFM.

  1. K3MQactive· E
    Johnson, Robert ADEgranted 2024-10-16

All historical holders

Every license row we've seen with the callsign K3EFM, oldest first.

  • Johnson, Robert A DE
    2004-07-13 → cancelled 2004-11-02
  • Abd Majid, Muhammad Farish FL
    2017-02-07 active
← Back to K3EFM License history →