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

W4DS callsign genealogy

Currently held by STAUFFER, DALE 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 W4DS's current licensee, walking backwards.

  1. N4BJcancelled· E
    Vasilopoulos, Kostadinos GFLgranted 2021-06-11cancelled 2025-06-06
  2. WV4Aactive· E
    Oshins, Lawrence WFLgranted 2023-07-11
  3. KO4VKLcancelled· E
    Oshins, Lawrence WFLgranted 2021-12-15cancelled 2023-07-11

Successor callsigns

Callsigns held now by people who previously held W4DS.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W4DS, oldest first.

  • STAUFFER, DALE A NC
    2016-09-22 → cancelled 2023-05-17
  • Vasilopoulos, Kostadinos G FL
    2025-06-06 active
← Back to W4DS License history →