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

WP4O callsign genealogy

Currently held by OTERO, PEDRO J

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 WP4O's current licensee, walking backwards.

  1. KP4TCactive· E
    CORTES RIVERA, JUAN APRgranted 2025-06-27
  2. WP4JCRcancelled· E
    CORTES RIVERA, JUAN APRgranted 2023-09-09cancelled 2025-06-27
  3. WP4QHXcancelled· G
    CORTES RIVERA, JUAN APRgranted 2018-08-20cancelled 2023-09-09

Successor callsigns

Callsigns held now by people who previously held WP4O.

  1. KK4Xactive· E
    RODRIGUEZ, EdFLgranted 2024-01-25
  2. KE4IAcancelled· E
    Rodriguez, Edwin (ED)FLgranted 2012-08-07cancelled 2012-09-11

All historical holders

Every license row we've seen with the callsign WP4O, oldest first.

  • RODRIGUEZ, EDWIN E FL
    2005-06-06 → cancelled 2012-08-07
  • Rodriguez, Ed FL
    2012-09-11 → cancelled 2014-04-22
  • OTERO, PEDRO J PR
    2026-02-21 active
← Back to WP4O License history →