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

KM4CB callsign genealogy

Currently held by PEAK, MICHAEL 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 KM4CB's current licensee, walking backwards.

  1. KN4KHNcancelled· E
    BOLAND, CHARLES HSCgranted 2018-03-05cancelled 2025-07-11

Successor callsigns

Callsigns held now by people who previously held KM4CB.

  1. KF4Jactive· E
    PEAK, MICHAEL PGAgranted 2018-10-02
  2. K8CDZexpired· E
    LYSTER, JOHN JFLgranted 2001-09-25cancelled 2013-09-26

All historical holders

Every license row we've seen with the callsign KM4CB, oldest first.

  • LYSTER, JOHN J FL
    2001-02-22 → cancelled 2001-09-25
  • PEAK, MICHAEL P GA
    2018-02-10 → cancelled 2018-10-02
  • BOLAND, CHARLES H SC
    2025-07-11 active
← Back to KM4CB License history →