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

WD9ON callsign genealogy

Currently held by RIVERA JR, DOMINGO M

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 WD9ON's current licensee, walking backwards.

  1. K9PQactive· E
    HELLING, ROBERT BWAgranted 2025-04-08
  2. AC7NFcancelled· E
    HELLING, ROBERT BWAgranted 2001-05-03cancelled 2005-03-25
  3. KF9ALcancelled· E
    HELLING, ROBERT BWAgranted 1991-05-14cancelled 2001-05-03
  4. KA7ZSN
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held WD9ON.

No current licensee on record previously held this callsign.

← Back to WD9ON License history →