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

K8EM callsign genealogy

Currently held by Guilkey, John M

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 K8EM's current licensee, walking backwards.

  1. K8CTOactive· E
    Carlson, Kevin HFLgranted 2025-12-23
  2. KZ4NRcancelled· E
    Carlson, Kevin HFLgranted 2024-10-24cancelled 2025-12-23
  3. KQ4WNHcancelled· E
    Carlson, Kevin HFLgranted 2024-10-24cancelled 2024-11-25

Successor callsigns

Callsigns held now by people who previously held K8EM.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K8EM, oldest first.

  • KALISCHER, ROBERT D OH
    1997-12-17 → cancelled 2004-08-27
  • Guilkey, John M OH
    2017-12-06 active
← Back to K8EM License history →