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

N7MAM callsign genealogy

Currently held by MONTGOMERY, MARK A

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 N7MAM's current licensee, walking backwards.

  1. AI7EXactive· E
    Williams, Matthew AORgranted 2024-01-09
  2. KJ7UIScancelled· E
    Williams, Matthew AORgranted 2021-02-09cancelled 2024-01-09

Successor callsigns

Callsigns held now by people who previously held N7MAM.

  1. K6LTSactive· E
    MONTGOMERY, MARK AORgranted 2023-12-22

All historical holders

Every license row we've seen with the callsign N7MAM, oldest first.

  • STEWARD, LARRY E WA
    1988-12-27 → cancelled 2000-12-28
  • MONTGOMERY, MARK A OR
    2021-02-12 → cancelled 2023-12-22