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

N4USB callsign genealogy

Currently held by MOORE, ROBERT 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 N4USB's current licensee, walking backwards.

  1. KW4ZNcancelled· E
    Edwards, Larry TNCgranted 2016-06-16cancelled 2016-12-10
  2. KM4USBcancelled· E
    Edwards, Larry TNCgranted 2016-06-16cancelled 2016-11-21

Successor callsigns

Callsigns held now by people who previously held N4USB.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N4USB, oldest first.

  • MARGISON, RODNEY A IN
    1995-08-21 → cancelled 2001-01-04
  • MOORE, ROBERT A NC
    2003-11-11 → cancelled 2015-11-13
  • Edwards, Larry T NC
    2016-12-10 active
← Back to N4USB License history →