Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS5O callsign genealogy
Currently held by WEBB JR, BILL H
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 WS5O's current licensee, walking backwards.
- Postma, TomTXgranted 2017-08-01cancelled 2017-11-25
Successor callsigns
Callsigns held now by people who previously held WS5O.
- WEBB JR, BILL HTXgranted 2015-11-06
All historical holders
Every license row we've seen with the callsign WS5O, oldest first.
- MC BROOM, HAROLD E NM1989-01-31 → cancelled 2001-02-01
- MASON, STEVE R OK2002-10-18 → cancelled 2014-10-21
- WEBB JR, BILL H TX2014-11-07 → cancelled 2015-11-06
- Postma, Tom TX2017-11-25 active