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

NT4MM callsign genealogy

Currently held by DAVIS, JACOB R

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 NT4MM's current licensee, walking backwards.

  1. KI4WMOcancelled· E
    DAVIS, JACOB RGAgranted 2014-01-21cancelled 2016-01-22
  2. KB8RMNcancelled· G
    Davis, Jacob RGAgranted 2003-11-13cancelled 2007-06-15

Successor callsigns

Callsigns held now by people who previously held NT4MM.

  1. W4JGScancelled· A
    SKORA, JOHN GVAgranted 1999-07-12cancelled 2000-06-27

All historical holders

Every license row we've seen with the callsign NT4MM, oldest first.

  • DAVIS, JACOB R GA
    2025-12-16 active
  • SKORA, JOHN G
    — → cancelled 1999-07-12
← Back to NT4MM License history →