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

N4SG callsign genealogy

Currently held by GREER, CHARLES S

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 N4SG's current licensee, walking backwards.

  1. KM4WQ
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N4SG.

No current licensee on record previously held this callsign.

← Back to N4SG License history →