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

N1IOY callsign genealogy

Currently held by MC MULLEN, MAX 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 N1IOY's current licensee, walking backwards.

  1. KA1YAQ
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N1IOY.

No current licensee on record previously held this callsign.

← Back to N1IOY License history →