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

K4MPS callsign genealogy

Currently held by SIMMONS, 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 K4MPS's current licensee, walking backwards.

  1. KZ4JTcancelled· E
    Shields, Michael PFLgranted 2020-11-13cancelled 2024-08-30
  2. KO4JCWcancelled· E
    Shields, Michael PFLgranted 2020-11-13cancelled 2024-07-16

Successor callsigns

Callsigns held now by people who previously held K4MPS.

  1. KI4FIOactive· T
    SIMMONS, MICHAEL PNCgranted 2025-03-19
  2. K4MPGactive· T
    GABE, MAUREEN PFLgranted 2021-02-02
  3. WT5Kactive· E
    Smith, Michael PKYgranted 2019-12-03

All historical holders

Every license row we've seen with the callsign K4MPS, oldest first.

  • SIMMONS, MICHAEL P NC
    2004-06-11 → cancelled 2004-07-09
  • GABE, MAUREEN P FL
    2008-03-28 → cancelled 2011-03-15
  • Smith, Michael P KY
    2019-06-04 → cancelled 2019-12-03
  • Shields, Michael P FL
    2024-08-30 active
← Back to K4MPS License history →