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

KP4PZ callsign genealogy

Currently held by RUIZ RIVERA, LUIS 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 KP4PZ's current licensee, walking backwards.

  1. NP4VPcancelled· E
    RUIZ RIVERA, LUIS RPRgranted 2023-07-18cancelled 2023-12-16
  2. WP4KPNcancelled· G
    RUIZ RIVERA, LUIS RPRgranted 2022-03-16cancelled 2023-07-18
  3. WP4JIR
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held KP4PZ.

No current licensee on record previously held this callsign.

← Back to KP4PZ License history →