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

N3DEF callsign genealogy

Currently held by HARRISON, EDWARD F

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 N3DEF's current licensee, walking backwards.

  1. AC3BMcancelled· E
    Felton, David EPAgranted 2016-05-02cancelled 2017-10-14
  2. KC3HANcancelled· E
    Felton, David EPAgranted 2016-05-02cancelled 2017-09-25

Successor callsigns

Callsigns held now by people who previously held N3DEF.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N3DEF, oldest first.

  • HARRISON, EDWARD F DE
    1989-02-07 → cancelled 2001-02-08
  • Felton, David E PA
    2017-10-14 active
← Back to N3DEF License history →