uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

AB8BY callsign genealogy

Currently held by MASON JR, WILLIAM C

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 AB8BY's current licensee, walking backwards.

  1. KB8UDJcancelled· A
    MASON JR, WILLIAM Ccancelled 1998-02-25

Successor callsigns

Callsigns held now by people who previously held AB8BY.

  1. N8OPactive· E
    MASON JR, WILLIAM CWVgranted 2022-08-02
  2. N8OPterminated· E
    MASON JR, WILLIAM CWVgranted 2002-02-01cancelled 2002-02-04
← Back to AB8BY License history →