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

K7RLC callsign genealogy

Currently held by ZIMMERMANN, JOHN C

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 K7RLC's current licensee, walking backwards.

  1. K7URCcancelled· T
    CAMPBELL 995, RONUTgranted 2020-06-20cancelled 2022-07-01
  2. KJ7OBKcancelled· T
    CAMPBELL, RONUTgranted 2020-05-21cancelled 2020-06-20

Successor callsigns

Callsigns held now by people who previously held K7RLC.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K7RLC, oldest first.

  • ZIMMERMANN, JOHN C WA
    2010-06-04 → cancelled 2022-06-14
  • CAMPBELL, RON UT
    2022-07-01 active
← Back to K7RLC License history →