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

NA4DD callsign genealogy

Currently held by GROSSMAN, DAVID T

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 NA4DD's current licensee, walking backwards.

  1. NA3DGcancelled· A
    GROSSMAN, DAVID TFLgranted 2023-09-19cancelled 2023-10-11
  2. NA0DXcancelled· A
    GROSSMAN, DAVID TFLgranted 2017-07-20cancelled 2023-09-19
  3. WD0HNHcancelled· A
    GROSSMAN, DAVID Tcancelled 1997-09-17

Successor callsigns

Callsigns held now by people who previously held NA4DD.

No current licensee on record previously held this callsign.

← Back to NA4DD License history →