uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W4PT callsign genealogy

Currently held by Luszcz, Michael S

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 W4PT's current licensee, walking backwards.

  1. AI7WMcancelled· E
    CROTHERS, MARK AWAgranted 2023-12-13cancelled 2024-03-29
  2. KK7PXRcancelled· E
    CROTHERS, MARK AWAgranted 2023-12-13cancelled 2024-03-11

Successor callsigns

Callsigns held now by people who previously held W4PT.

  1. K2SCcancelled· E
    CARROLL, STEPHEN JALgranted 1999-12-03cancelled 2007-10-05

All historical holders

Every license row we've seen with the callsign W4PT, oldest first.

  • CARROLL, STEPHEN J AL
    1999-11-13 → cancelled 1999-12-03
  • Luszcz, Michael S CO
    2014-03-06 → cancelled 2024-03-09
  • Crothers, Doc Mark A WA
    2024-03-29 active
← Back to W4PT License history →