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

W5YF callsign genealogy

Currently held by BEEBE, MARK S

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 W5YF's current licensee, walking backwards.

  1. K5YOLcancelled· E
    BEEBE, MARK STXgranted 2017-02-07cancelled 2018-07-10
  2. KB5YOLcancelled· T
    BEEBE, MARK STXgranted 2013-02-28cancelled 2017-02-07

Successor callsigns

Callsigns held now by people who previously held W5YF.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W5YF, oldest first.

  • AMATEUR RAD SOCIETY OF SOUTHERN METHODIST UNIV TX
    2006-06-22 → cancelled 2018-06-21
  • BEEBE, MARK S TX
    2018-07-10 active