Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WB5TWB callsign genealogy
Currently held by Durbin, Michael L
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 WB5TWB's current licensee, walking backwards.
- Durbin, Michael LTXgranted 2008-03-04cancelled 2010-08-31
Successor callsigns
Callsigns held now by people who previously held WB5TWB.
- Durbin, Michael LTXgranted 2026-03-17