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

AC1SQ callsign genealogy

Currently held by Youngstrom, Daniel W

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 AC1SQ's current licensee, walking backwards.

  1. N1DWYcancelled· E
    Youngstrom, Daniel WCTgranted 2020-08-28cancelled 2024-09-12
  2. W4DWYcancelled· G
    Youngstrom, Daniel WCTgranted 2012-11-09cancelled 2020-08-28
  3. KK4BWUcancelled· G
    Youngstrom, Daniel WVAgranted 2011-05-02cancelled 2012-11-09

Successor callsigns

Callsigns held now by people who previously held AC1SQ.

No current licensee on record previously held this callsign.

← Back to AC1SQ License history →