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

K7OM callsign genealogy

Currently held by MC DONALD, THEODORE 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 K7OM's current licensee, walking backwards.

  1. KQ4Oactive· E
    Schaffner, William PALgranted 2019-08-27
  2. NO9Xactive· E
    Archer, John HWIgranted 2021-09-17
  3. KR9CHRcancelled· E
    Archer, JohnWIgranted 2021-01-19cancelled 2021-09-17
  4. KD9RGKcancelled· G
    Archer, JohnWIgranted 2020-12-29cancelled 2021-01-19

Successor callsigns

Callsigns held now by people who previously held K7OM.

No current licensee on record previously held this callsign.

← Back to K7OM License history →