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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K4JMA callsign genealogy

Currently held by Armfield, James 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 K4JMA's current licensee, walking backwards.

  1. WB4EAMcancelled· E
    Armfield, James MSCgranted 2016-05-27cancelled 2023-02-22

Successor callsigns

Callsigns held now by people who previously held K4JMA.

  1. W4WRXactive· T
    Acuff, Joshua MTNgranted 2016-04-19
  2. KR4OKcancelled· A
    ALDERFER, JEFFREY MNCgranted 2003-11-01cancelled 2008-04-22

All historical holders

Every license row we've seen with the callsign K4JMA, oldest first.

  • ALDERFER, JEFFREY M NC
    2001-08-25 → cancelled 2003-11-01
  • Acuff, Joshua M TN
    2016-02-17 → cancelled 2016-04-19
  • Armfield, James M SC
    2023-02-22 active
← Back to K4JMA License history →