uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W3WI callsign genealogy

Currently held by Duckworth, William A

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 W3WI's current licensee, walking backwards.

  1. K3XTXcancelled· E
    Duckworth, William AMDgranted 2020-12-31cancelled 2023-06-09
  2. KB3HALcancelled· G
    Duckworth, William AMDgranted 2001-09-11cancelled 2011-02-01

Successor callsigns

Callsigns held now by people who previously held W3WI.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W3WI, oldest first.

  • GLAZAR, WALTER S SC
    2011-02-22 → cancelled 2023-05-23
  • Duckworth, William A MD
    2023-06-09 active
← Back to W3WI License history →