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

NM4M callsign genealogy

Currently held by Wilburn, David G

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 NM4M's current licensee, walking backwards.

  1. K4DGWactive· E
    Watson, Dennis GNCgranted 2019-06-22
  2. KM4TJRcancelled· E
    Watson, Dennis GVAgranted 2016-04-20cancelled 2019-06-22

Successor callsigns

Callsigns held now by people who previously held NM4M.

  1. N4FZactive· E
    SUMMERS JR, FOREST EKYgranted 2026-06-17

All historical holders

Every license row we've seen with the callsign NM4M, oldest first.

  • SUMMERS JR, FOREST E KY
    2005-12-28 → cancelled 2006-08-29
  • Wilburn, David G TX
    2018-07-20 active
← Back to NM4M License history →