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

N4AAM callsign genealogy

Currently held by PORTER, SAMUEL W

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 N4AAM's current licensee, walking backwards.

  1. KC8IDFcancelled· G
    Harris, Mark AFLgranted 2007-04-13cancelled 2017-05-02

Successor callsigns

Callsigns held now by people who previously held N4AAM.

  1. N4QEactive· E
    PORTER, SAMUEL WALgranted 2022-06-22
  2. WO3Fexpired· E
    FROHWITTER, JOSEPH DNCgranted 2014-03-15cancelled 2026-03-17

All historical holders

Every license row we've seen with the callsign N4AAM, oldest first.

  • PORTER, SAMUEL W AL
    1998-07-06 → cancelled 2002-07-12
  • FROHWITTER, JOSEPH D NC
    2012-01-31 → cancelled 2014-03-15
  • Harris, Mark A FL
    2017-05-02 active
← Back to N4AAM License history →