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

AJ4OO callsign genealogy

Currently held by Inigo-Orpi, Pedro E

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 AJ4OO's current licensee, walking backwards.

  1. KP4KCcancelled
    Potin DX And Contest GroupPRgranted 2021-10-02cancelled 2023-09-15
  2. WP4RUPcancelled
    Potin DX And Contest GroupPRgranted 2021-05-26cancelled 2021-10-02

Successor callsigns

Callsigns held now by people who previously held AJ4OO.

No current licensee on record previously held this callsign.

← Back to AJ4OO License history →