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

K5MAB callsign genealogy

Currently held by Benefiel, Michael A

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 K5MAB's current licensee, walking backwards.

  1. KE5LZDcancelled· T
    BENEFIEL, MICHAEL ATXgranted 2007-03-23cancelled 2007-12-21
  2. KB3OIDcancelled· T
    BENEFIEL, MICHAEL ATXgranted 1997-04-14cancelled 2007-01-11
  3. N3ZBRcancelled· T
    BENEFIEL, MICHAEL ATXgranted 1997-04-14cancelled 2006-12-14

Successor callsigns

Callsigns held now by people who previously held K5MAB.

No current licensee on record previously held this callsign.

← Back to K5MAB License history →