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

KC8P callsign genealogy

Currently held by Nowak, Mariusz P

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 KC8P's current licensee, walking backwards.

  1. KD8HZAcancelled· E
    Nowak, Mariusz PMIgranted 2008-03-07cancelled 2008-08-22

Successor callsigns

Callsigns held now by people who previously held KC8P.

  1. W8GPactive· E
    POEL, GREGORY SMIgranted 2016-08-12
  2. WB8KKYcancelled· E
    ADAM, JAN SFLgranted 2015-03-14cancelled 2019-08-31

All historical holders

Every license row we've seen with the callsign KC8P, oldest first.

  • ADAM, JAN S MI
    2000-04-04 → cancelled 2005-05-17
  • Nowak, Mariusz P MI
    2018-05-25 active