Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3BIL callsign genealogy
Currently held by LaPierre, William M
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 K3BIL's current licensee, walking backwards.
- LaPierre, William MCOgranted 2007-01-25cancelled 2007-02-24
Successor callsigns
Callsigns held now by people who previously held K3BIL.
- SLATER, WILLIAM MOKgranted 2013-02-13cancelled 2016-06-18
All historical holders
Every license row we've seen with the callsign K3BIL, oldest first.
- SLATER, WILLIAM M OK2002-03-08 → cancelled 2003-05-13
- LaPierre, William M CO2016-12-01 active