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

K1PZ callsign genealogy

Currently held by BLAIR, WILLIAM H

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 K1PZ's current licensee, walking backwards.

  1. W1NVactive· E
    BETTENCOURT, MICHAEL CCOgranted 2023-02-07
  2. W0MCBcancelled· E
    BETTENCOURT, MICHAEL CCOgranted 2021-02-13cancelled 2023-02-07
  3. KF0DLXcancelled· T
    BETTENCOURT, MICHAEL CCOgranted 2021-01-26cancelled 2021-02-13

Successor callsigns

Callsigns held now by people who previously held K1PZ.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K1PZ, oldest first.

  • BLAIR, WILLIAM H TX
    2010-09-17 → cancelled 2022-11-29
  • Bartucco, Robert J FL
    2022-12-17 active
← Back to K1PZ License history →