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

AB4CQ callsign genealogy

Currently held by DOEMLAND, NICHOLAS J

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 AB4CQ's current licensee, walking backwards.

  1. KM4AALactive· T
    Lopez Jr, Jose AFLgranted 2020-10-16
  2. KO4HXOcancelled· T
    Lopez Jr, Jose AFLgranted 2020-09-28cancelled 2020-10-16

Successor callsigns

Callsigns held now by people who previously held AB4CQ.

  1. K2ERcancelled· E
    WILLIAMSON JR, O GORDONFLgranted 2007-09-18cancelled 2007-10-27

All historical holders

Every license row we've seen with the callsign AB4CQ, oldest first.

  • WILLIAMSON JR, O GORDON FL
    2001-12-18 → cancelled 2007-09-18
  • DOEMLAND, NICHOLAS J GA
    2014-11-25 active
← Back to AB4CQ License history →