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

AB4FL callsign genealogy

Currently held by Colllier Dstar Group

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 AB4FL's current licensee, walking backwards.

  1. KD5ARcancelled· E
    CLARK, BRADLEY MFLgranted 2018-12-21cancelled 2025-12-30
  2. KK5ZKcancelled· E
    CLARK, BRADLEY MARgranted 2002-08-28cancelled 2009-03-20

Successor callsigns

Callsigns held now by people who previously held AB4FL.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AB4FL, oldest first.

  • Colllier Dstar Group FL
    2013-01-05 → cancelled 2025-01-07
  • CLARK, BRADLEY M FL
    2025-12-30 active