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

N9TYT callsign genealogy

Currently held by Emerson, Keith D

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 N9TYT's current licensee, walking backwards.

  1. KD9CPHactive· T
    Emerson, Keith DILgranted 2020-12-04
  2. KX4AOCcancelled· T
    Emerson, Keith DFLgranted 2020-10-20cancelled 2020-12-04

Successor callsigns

Callsigns held now by people who previously held N9TYT.

  1. KD9CPHcancelled· T
    Emerson, Keith DFLgranted 2017-10-11cancelled 2018-11-14

All historical holders

Every license row we've seen with the callsign N9TYT, oldest first.

  • JOHNSTON, PATRICK R IL
    1993-06-08 → cancelled 2005-06-09
  • Emerson, Keith D IN
    2017-09-15 → cancelled 2017-10-11
← Back to N9TYT License history →