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

N1XDN callsign genealogy

Currently held by AMARILIOS, JOHN 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 N1XDN's current licensee, walking backwards.

  1. KD1ZDcancelled· A
    THOELEN III, ROBERT ECTgranted 2014-07-01cancelled 2015-07-11
  2. N1SZT
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N1XDN.

  1. W1HPCactive· E
    THOELEN III, ROBERT ECTgranted 2022-06-04
  2. KB1CKKcancelled· P
    AMARILIOS, JOHN ACTgranted 1998-02-26cancelled 2006-01-24

All historical holders

Every license row we've seen with the callsign N1XDN, oldest first.

  • THOELEN III, ROBERT E CT
    2015-07-11 → cancelled 2022-06-04
  • AMARILIOS, JOHN A
    — → cancelled 1998-02-26
← Back to N1XDN License history →