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

AG7O callsign genealogy

Currently held by DE CASTRO, JUAN

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 AG7O's current licensee, walking backwards.

  1. K4PYactive· E
    LAFON, VICTOR LVAgranted 2023-10-11
  2. K3OUactive· E
    Hignutt Jr, EmanuelMDgranted 2025-12-09
  3. AC3NWcancelled· E
    Hignutt Jr, EmanuelMDgranted 2024-12-10cancelled 2025-12-09
  4. KD3AHKcancelled· E
    Hignutt Jr, EmanuelMDgranted 2024-12-10cancelled 2025-01-21

Successor callsigns

Callsigns held now by people who previously held AG7O.

  1. W7MNSactive· E
    HAAS, LARRY AWAgranted 2019-08-31

All historical holders

Every license row we've seen with the callsign AG7O, oldest first.

  • ARMACOST, RONALD R WA
    2005-06-15 → cancelled 2017-09-14
  • HAAS, LARRY A WA
    2017-10-03 → cancelled 2019-08-31
  • DE CASTRO, JUAN CO
    2021-09-21 active
← Back to AG7O License history →