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

AC9I callsign genealogy

Currently held by Carden, Glenn 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 AC9I's current licensee, walking backwards.

  1. AB9NKcancelled· E
    Carden, Glenn RILgranted 2003-06-27cancelled 2007-03-06
  2. K9EFNcancelled· E
    Carden, Glenn RILgranted 2003-06-27cancelled 2007-02-14
  3. KC9EFNcancelled· G
    Carden, Glenn RILgranted 2003-05-23cancelled 2003-06-27

Successor callsigns

Callsigns held now by people who previously held AC9I.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AC9I, oldest first.

  • KOEHLER, GENE P WI
    1995-01-26 → cancelled 2007-01-27
  • Carden, Glenn R IL
    2016-12-24 active
← Back to AC9I License history →