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

AF6U callsign genealogy

Currently held by MULLEN, THOMAS 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 AF6U's current licensee, walking backwards.

  1. KB6LEEcancelled· E
    SCHULZ, LEE JCAgranted 2021-06-15cancelled 2024-06-01
  2. KN6NOOcancelled· T
    SCHULZ, LEE JCAgranted 2021-02-24cancelled 2021-06-15

Successor callsigns

Callsigns held now by people who previously held AF6U.

  1. WF1Icancelled· E
    Maupin, MatthewRIgranted 2022-05-13cancelled 2023-01-18

All historical holders

Every license row we've seen with the callsign AF6U, oldest first.

  • MULLEN, THOMAS R CA
    2008-05-01 → cancelled 2020-06-04
  • Maupin, Matthew RI
    2020-06-26 → cancelled 2022-05-13
  • SCHULZ, LEE J CA
    2024-06-01 active
← Back to AF6U License history →