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

N9CMD callsign genealogy

Currently held by Brenton, Geoffrey G

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 N9CMD's current licensee, walking backwards.

  1. W1GEOactive· E
    Wallace, David MORgranted 2018-12-04
  2. KJ7BXHcancelled· G
    Wallace, David MORgranted 2018-11-14cancelled 2018-12-04

Successor callsigns

Callsigns held now by people who previously held N9CMD.

  1. N9GEOactive· G
    Brenton, Geoffrey GILgranted 2017-07-11
  2. N5CMDcancelled· E
    SVATIK, DAVID ATXgranted 2009-04-11cancelled 2015-10-14

All historical holders

Every license row we've seen with the callsign N9CMD, oldest first.

  • Brenton, Geoffrey G IL
    2016-10-07 → cancelled 2017-07-11
  • SVATIK, DAVID A
    — → cancelled 1999-07-09
← Back to N9CMD License history →