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

KZ1R callsign genealogy

Currently held by Chirkov, Mike

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 KZ1R's current licensee, walking backwards.

  1. AB1LBactive· E
    CAPEWELL, ALANMAgranted 2020-01-07
  2. W1IPIcancelled· E
    CAPEWELL, ALANMAgranted 2018-05-01cancelled 2020-01-07
  3. N1IWDcancelled· T
    CAPEWELL, ALANMAgranted 2013-01-18cancelled 2018-05-01

Successor callsigns

Callsigns held now by people who previously held KZ1R.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KZ1R, oldest first.

  • JEFFERS, CLARENCE G CT
    1997-03-20 → cancelled 2009-03-21
  • Chirkov, Mike ME
    2019-07-17 active
← Back to KZ1R License history →