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

N4HBT callsign genealogy

Currently held by O BRIEN, RAY F

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 N4HBT's current licensee, walking backwards.

  1. KA4OMT
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N4HBT.

No current licensee on record previously held this callsign.

← Back to N4HBT License history →