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

KB1U callsign genealogy

Currently held by FREESTON, ANDREW K

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 KB1U's current licensee, walking backwards.

  1. KA1VYXcancelled· E
    FREESTON, ANDREW KNHgranted 2013-09-24cancelled 2022-10-18

Successor callsigns

Callsigns held now by people who previously held KB1U.

  1. KB4AXactive· E
    Waldera, Robert GGAgranted 2023-07-06
  2. W1NIactive· E
    Morley, John AMAgranted 2020-05-22
  3. W1OZactive· E
    KOSOFF, MITCHEL AMEgranted 2017-11-08
  4. K1PPcancelled· E
    Miyamoto, TakashiMAgranted 2011-03-05cancelled 2019-04-19

All historical holders

Every license row we've seen with the callsign KB1U, oldest first.

  • KOSOFF, MITCHEL A ME
    2000-07-19 → cancelled 2008-01-29
  • Miyamoto, Takashi MA
    2010-05-29 → cancelled 2011-03-05
  • Waldera, Robert G GA
    2013-04-09 → cancelled 2013-07-06
  • Morley, John A MA
    2015-07-25 → cancelled 2020-05-22
  • FREESTON, ANDREW K NH
    2022-10-18 active
← Back to KB1U License history →