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

K4DSM callsign genealogy

Currently held by MC COY, DAVID 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 K4DSM's current licensee, walking backwards.

  1. KX4CHcancelled· E
    Mantooth, Daniel STNgranted 2017-03-08cancelled 2025-09-16
  2. KN4BPBcancelled· E
    Mantooth, Daniel STNgranted 2017-03-08cancelled 2017-04-10

Successor callsigns

Callsigns held now by people who previously held K4DSM.

  1. N4KECactive· G
    Chappell, KevinMIgranted 2022-03-04
  2. AC4IRcancelled· E
    MC COY, DAVID SNCgranted 2012-06-09cancelled 2021-10-26

All historical holders

Every license row we've seen with the callsign K4DSM, oldest first.

  • MC COY, DAVID S NC
    2004-03-06 → cancelled 2012-06-09
  • Chappell, Kevin MI
    2016-04-08 → cancelled 2022-03-04
  • Mantooth, Daniel S TN
    2025-09-16 active
← Back to K4DSM License history →