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

N1YO callsign genealogy

Currently held by Ventura, Matthew J

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 N1YO's current licensee, walking backwards.

  1. AA1YOcancelled· E
    Ventura, Matthew JRIgranted 2001-04-10cancelled 2002-04-03
  2. N1JNIcancelled· E
    Ventura, Matthew JRIgranted 2001-04-10cancelled 2001-06-19

Successor callsigns

Callsigns held now by people who previously held N1YO.

No current licensee on record previously held this callsign.