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

AB0LG callsign genealogy

Currently held by Ritchen, William 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 AB0LG's current licensee, walking backwards.

  1. AB7LGcancelled· E
    Ritchen, William JCAgranted 2018-05-15cancelled 2020-10-27
  2. KM6PAScancelled· E
    Ritchen, William JCAgranted 2017-12-13cancelled 2018-05-15

Successor callsigns

Callsigns held now by people who previously held AB0LG.

  1. K0PZactive· E
    Smith, Robert JCOgranted 2020-06-13

All historical holders

Every license row we've seen with the callsign AB0LG, oldest first.

  • Smith, Robert J CO
    1990-12-04 → cancelled 2000-08-25
  • Ritchen, William J CO
    2020-10-27 active
← Back to AB0LG License history →