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

K4LSB callsign genealogy

Currently held by Sweeney, Earl M

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 K4LSB's current licensee, walking backwards.

  1. ND8Vactive· E
    Bassham, Brett RARgranted 2024-04-19
  2. KG5ZKXcancelled· E
    Bassham, Brett RARgranted 2018-04-24cancelled 2024-04-19

Successor callsigns

Callsigns held now by people who previously held K4LSB.

  1. ND8Vcancelled· E
    Sweeney, Earl MFLgranted 2008-03-14cancelled 2009-03-20

All historical holders

Every license row we've seen with the callsign K4LSB, oldest first.

  • Sweeney, Earl M FL
    2006-03-18 → cancelled 2008-03-14
  • Sweeney, Earl M FL
    2019-01-30 active
← Back to K4LSB License history →