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

AC9SS callsign genealogy

Currently held by Seifert, Samuel O

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 AC9SS's current licensee, walking backwards.

  1. AC9JCcancelled· E
    Seifert, Samuel OINgranted 2014-02-07cancelled 2016-07-08
  2. KC9FZAcancelled· E
    Seifert, Samuel OINgranted 2014-02-07cancelled 2014-08-01

Successor callsigns

Callsigns held now by people who previously held AC9SS.

No current licensee on record previously held this callsign.

← Back to AC9SS License history →