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

KX4FJ callsign genealogy

Currently held by PEREZ, JUAN A

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 KX4FJ's current licensee, walking backwards.

  1. KI4VOAcancelled· E
    PEREZ, JUAN AFLgranted 2012-07-31cancelled 2017-08-22
  2. KC4CXBcancelled· G
    PEREZ, JUAN AFLgranted 2002-09-12cancelled 2007-05-02

Successor callsigns

Callsigns held now by people who previously held KX4FJ.

  1. NX4JPactive· E
    PEREZ, JUAN AFLgranted 2022-03-25
← Back to KX4FJ License history →