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

N4SUH callsign genealogy

Currently held by WINKLER SR, MICHAEL C

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 N4SUH's current licensee, walking backwards.

  1. NL7IT
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N4SUH.

No current licensee on record previously held this callsign.

← Back to N4SUH License history →