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.
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 TX2006-06-22 → cancelled 2018-06-21
- BEEBE, MARK S TX2018-07-10 active