Confidence: Medium · Source: FCC ULS · As of 2026-09-10
WA5OBF callsign genealogy
Currently held by ALEXANDER, SHELBY T
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 WA5OBF's current licensee, walking backwards.
- ALEXANDER, MICHAEL DTXgranted 1998-12-07cancelled 2003-06-14
Successor callsigns
Callsigns held now by people who previously held WA5OBF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA5OBF, oldest first.
- ALEXANDER, SHELBY T TX1994-08-17 → cancelled 2002-10-24
- ALEXANDER, MICHAEL D TX2023-06-23 active