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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

N8KO callsign genealogy

Currently held by DOOLEY, HAROLD E

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 N8KO's current licensee, walking backwards.

  1. K2QFactive· E
    Gritzmacher, Donald ECOgranted 2025-12-09
  2. AC0HTcancelled· E
    Gritzmacher, Donald ECOgranted 2017-01-28cancelled 2025-12-09
  3. KC0ZNUcancelled· E
    Gritzmacher, Donald ECOgranted 2007-02-16cancelled 2007-04-18

Successor callsigns

Callsigns held now by people who previously held N8KO.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N8KO, oldest first.

  • DOOLEY, HAROLD E WV
    2011-08-19 → cancelled 2023-10-11
  • Kesler, Carlton S MI
    2023-10-28 active
← Back to N8KO License history →