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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KP4ZV callsign genealogy

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 KP4ZV's current licensee, walking backwards.

  1. W4ZZYactive· G
    CHASTAIN, JOHN DGAgranted 2015-12-11
  2. W4JBUcancelled· T
    CHASTAIN, JOHN DGAgranted 2015-11-21cancelled 2015-12-11
  3. KM4ONMcancelled· T
    CHASTAIN, JOHN DGAgranted 2015-11-02cancelled 2015-11-21

Successor callsigns

Callsigns held now by people who previously held KP4ZV.

  1. NB1Vactive· E
    TORRES MURPHY, JOSE MFLgranted 2023-06-06
  2. NP4Dexpired· E
    DELGADO PEREZ, DIEGO MPRgranted 2007-07-17cancelled 2019-08-02

All historical holders

Every license row we've seen with the callsign KP4ZV, oldest first.

  • TORRES MURPHY, JOSE M FL
    2011-02-01 → cancelled 2013-06-04
  • —
    — → cancelled 1997-08-01
← Back to KP4ZV License history →