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

AC6TT callsign genealogy

Currently held by HAYNAL, STEVEN P

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 AC6TT's current licensee, walking backwards.

  1. W6CSRcancelled· E
    De Leon, Cesar MCAgranted 2021-07-24cancelled 2022-12-28
  2. W6ZFXcancelled· T
    De Leon, Cesar MCAgranted 2019-04-26cancelled 2021-07-24
  3. KM6ZFXcancelled· T
    De Leon, Cesar MCAgranted 2019-01-31cancelled 2019-04-26

Successor callsigns

Callsigns held now by people who previously held AC6TT.

  1. KF7Oactive· E
    HAYNAL, STEVEN PORgranted 2021-03-25

All historical holders

Every license row we've seen with the callsign AC6TT, oldest first.

  • HAYNAL, STEVEN P OR
    2006-04-04 → cancelled 2011-05-17
  • De Leon, Cesar M CA
    2022-12-28 active