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

AC3B callsign genealogy

Currently held by Upson, Jim R

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 AC3B's current licensee, walking backwards.

  1. AA3UPcancelled· E
    Upson, Jim RDEgranted 2016-12-02cancelled 2018-01-13
  2. K3JRUcancelled· E
    Upson, Jim RDEgranted 2008-11-14cancelled 2016-12-02
  3. KB3RLOcancelled· G
    Upson, Jim RDEgranted 2008-07-08cancelled 2008-11-14

Successor callsigns

Callsigns held now by people who previously held AC3B.

  1. K4WJSactive· E
    STICKLEY JR, WALTER JFLgranted 2025-12-30

All historical holders

Every license row we've seen with the callsign AC3B, oldest first.

  • STICKLEY JR, WALTER J NC
    2015-10-27 → cancelled 2015-12-25
  • Upson, Jim R DE
    2018-01-13 active
← Back to AC3B License history →