uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KZ6O callsign genealogy

Currently held by Carelli, Chris A

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 KZ6O's current licensee, walking backwards.

  1. KK6JTKcancelled· E
    Carelli, Chris ACAgranted 2014-02-13cancelled 2021-06-22

Successor callsigns

Callsigns held now by people who previously held KZ6O.

  1. KE7AZactive· E
    ZINTSMASTER, LOGAN RAZgranted 2019-05-29
  2. K6KSRexpired· E
    HARPER, JOHN DTXgranted 2007-05-25cancelled 2019-05-21

All historical holders

Every license row we've seen with the callsign KZ6O, oldest first.

  • ZINTSMASTER, LOGAN R AZ
    2010-04-02 → cancelled 2019-05-29
  • Carelli, Chris A CA
    2021-06-22 active
← Back to KZ6O License history →