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

N1HDZ callsign genealogy

Currently held by ANDRIOLE SR, ROBERT 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 N1HDZ's current licensee, walking backwards.

  1. KA1TRB
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N1HDZ.

No current licensee on record previously held this callsign.

← Back to N1HDZ License history →