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

KC7US callsign genealogy

Currently held by JOHNSTON, LUTHER 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 KC7US's current licensee, walking backwards.

  1. KC4Mactive· E
    SUTTON JR, AL JNCgranted 2024-05-21
  2. N4EIIcancelled· E
    SUTTON JR, AL JNCgranted 2017-07-04cancelled 2024-05-21
  3. KN4DRLcancelled· G
    SUTTON JR, AL JNCgranted 2017-06-01cancelled 2017-07-04

Successor callsigns

Callsigns held now by people who previously held KC7US.

  1. KQ7Aactive· E
    GRUGAL, GARTH MNVgranted 2022-11-22

All historical holders

Every license row we've seen with the callsign KC7US, oldest first.

  • JOHNSTON, LUTHER R WY
    1996-06-07 → cancelled 2008-06-10
  • GRUGAL, GARTH M NV
    2022-04-30 → cancelled 2022-11-22
← Back to KC7US License history →