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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

N4SWO callsign genealogy

Currently held by KUSTER, JOHN 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 N4SWO's current licensee, walking backwards.

  1. KC4DNK
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N4SWO.

No current licensee on record previously held this callsign.

← Back to N4SWO License history →