Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5MBT callsign genealogy
Currently held by WHITLEY JR, BASIL 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 W5MBT's current licensee, walking backwards.
- THOMAS, MICHAEL BTXgranted 2014-03-01cancelled 2015-03-17
Successor callsigns
Callsigns held now by people who previously held W5MBT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5MBT, oldest first.
- WHITLEY JR, BASIL J TX1996-11-14 → cancelled 2008-04-17
- THOMAS, MICHAEL B MO2025-04-11 active