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

NO0D callsign genealogy

Currently held by Underwood, 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 NO0D's current licensee, walking backwards.

  1. KK4NFCcancelled· E
    WILKISON, CHRISTOPHER AVAgranted 2012-12-10cancelled 2013-08-13

Successor callsigns

Callsigns held now by people who previously held NO0D.

  1. NU2Oactive· E
    Underwood, Mark ANEgranted 2021-04-08
  2. AA0DUcancelled· E
    GROSH, DORIS LKSgranted 2000-12-01cancelled 2003-06-06

All historical holders

Every license row we've seen with the callsign NO0D, oldest first.

  • Underwood, Mark A NE
    2011-06-11 → cancelled 2011-07-06
  • WILKISON, CHRISTOPHER A WA
    2024-11-19 active
← Back to NO0D License history →