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

N4ZZB callsign genealogy

Currently held by Hariu, William 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 N4ZZB's current licensee, walking backwards.

  1. KC4RRK
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N4ZZB.

No current licensee on record previously held this callsign.

← Back to N4ZZB License history →