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

N4MFT callsign genealogy

Currently held by BROCK, MARTHA L

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 N4MFT's current licensee, walking backwards.

  1. KB4NWN
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N4MFT.

No current licensee on record previously held this callsign.

← Back to N4MFT License history →