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

AB4BY callsign genealogy

Currently held by HELM SR, WALTER 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 AB4BY's current licensee, walking backwards.

  1. KA4BBYcancelled· E
    Dean, Abigail NFLgranted 2018-03-30cancelled 2021-03-30
  2. KN4KJIcancelled· T
    Dean, Abigail NFLgranted 2018-03-06cancelled 2018-03-30

Successor callsigns

Callsigns held now by people who previously held AB4BY.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AB4BY, oldest first.

  • HELM SR, WALTER J VA
    2006-12-11 → cancelled 2019-03-05
  • Dean, Abigail N FL
    2021-03-30 active
← Back to AB4BY License history →