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

AA4XA callsign genealogy

Currently held by FERRARO, DAVID L

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 AA4XA's current licensee, walking backwards.

  1. KO4TQGcancelled· E
    Ewers, MatthewALgranted 2021-09-30cancelled 2022-02-01

Successor callsigns

Callsigns held now by people who previously held AA4XA.

  1. K1KKactive· E
    SOURDIS, DAVID JNCgranted 2019-04-19
  2. K9QWcancelled· E
    TINKER, MATTHEW EINgranted 2015-01-16cancelled 2018-11-24

All historical holders

Every license row we've seen with the callsign AA4XA, oldest first.

  • FERRARO, DAVID L AR
    1992-05-12 → cancelled 2004-05-13
  • TINKER, MATTHEW E IN
    2008-08-19 → cancelled 2015-01-16
  • SOURDIS, DAVID J NC
    2018-05-04 → cancelled 2019-04-19
  • Ewers, Matthew AL
    2022-02-01 active
← Back to AA4XA License history →