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

AJ4SQ callsign genealogy

Currently held by Bono, Jack

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 AJ4SQ's current licensee, walking backwards.

  1. KJ4NLDactive· G
    SHEPARD, SEAN MVAgranted 2021-09-23
  2. KJ4CIDcancelled· T
    SHEPARD, SEAN MVAgranted 2011-03-22cancelled 2011-12-06
  3. KJ4SCXcancelled· T
    SHEPARD, SEAN MVAgranted 2010-02-11cancelled 2011-03-22

Successor callsigns

Callsigns held now by people who previously held AJ4SQ.

  1. WS3Nactive· E
    Bono, JackFLgranted 2021-09-10
← Back to AJ4SQ License history →