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

AC9FP callsign genealogy

Currently held by EIFERT, THOMAS 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 AC9FP's current licensee, walking backwards.

  1. NI7Vactive· E
    Gasik, Ryan JORgranted 2026-01-15
  2. KG7BBOcancelled· E
    Gasik, Ryan JORgranted 2013-02-07cancelled 2015-08-08

Successor callsigns

Callsigns held now by people who previously held AC9FP.

  1. NQ9Uactive· E
    EIFERT, THOMAS AORgranted 2021-03-16
← Back to AC9FP License history →