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

W6ZFX callsign genealogy

Currently held by De Leon, Cesar M

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 W6ZFX's current licensee, walking backwards.

  1. KM6ZFXcancelled· T
    De Leon, Cesar MCAgranted 2019-01-31cancelled 2019-04-26

Successor callsigns

Callsigns held now by people who previously held W6ZFX.

  1. W6CSRcancelled· E
    De Leon, Cesar MCAgranted 2021-07-24cancelled 2022-12-28
← Back to W6ZFX License history →