Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5BLL callsign genealogy
Currently held by STEPANEK JR, WILLIAM 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 N5BLL's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N5BLL.
All historical holders
Every license row we've seen with the callsign N5BLL, oldest first.
- CLARK, WILLIAM D OK2009-09-29 → cancelled 2010-02-19
- STEPANEK JR, WILLIAM L TX2016-05-14 → cancelled 2020-05-08