Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4BAS callsign genealogy
Currently held by WILLIAMS SR, BILL D
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 N4BAS's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N4BAS.
- WILLIAMS SR, BILL DTXgranted 2014-12-24
All historical holders
Every license row we've seen with the callsign N4BAS, oldest first.
- WILLIAMS SR, BILL D TX1998-04-08 → cancelled 2005-02-19
- Coleman, Jason P VA2023-08-01 active