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

AC7IO callsign genealogy

Currently held by Petris, Gilbert R

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 AC7IO's current licensee, walking backwards.

  1. AG6RPcancelled· E
    Petris, Gilbert RGAgranted 2015-10-06cancelled 2019-12-03
  2. KM4LROcancelled· E
    Petris, Gilbert RGAgranted 2015-07-10cancelled 2015-10-06

Successor callsigns

Callsigns held now by people who previously held AC7IO.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AC7IO, oldest first.

  • SNIDER, RONALD F WA
    1997-05-30 → cancelled 2009-06-02
  • Petris, Gilbert R AZ
    2019-12-03 active
← Back to AC7IO License history →