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

N4ZSI callsign genealogy

Currently held by EDEL, FRANK 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 N4ZSI's current licensee, walking backwards.

  1. KC4JJV
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N4ZSI.

No current licensee on record previously held this callsign.

← Back to N4ZSI License history →