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

K5UK callsign genealogy

Currently held by Beare, Donald T

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 K5UK's current licensee, walking backwards.

  1. KI5JIMactive· E
    Whittaker, Jim DOKgranted 2025-05-17

Successor callsigns

Callsigns held now by people who previously held K5UK.

  1. KI5JIMactive· E
    Whittaker, Jim DOKgranted 2025-05-17
  2. AC1OEcancelled· E
    Beare, Donald TCTgranted 2022-05-24cancelled 2023-01-18
  3. AC1MPcancelled· E
    Beare, Donald TMAgranted 2021-04-30cancelled 2022-05-24

All historical holders

Every license row we've seen with the callsign K5UK, oldest first.

  • KINELL III, CARL B CO
    2010-07-14 → cancelled 2019-04-09
  • Beare, Donald T MA
    2021-04-30 → cancelled 2022-03-24
  • Beare, Donald T CT
    2022-05-24 → cancelled 2022-12-30
  • Whittaker, Jim D OK
    2025-01-18 → cancelled 2025-05-17
← Back to K5UK License history →