Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB0OWL callsign genealogy
Currently held by STEINBACH, MURIEL 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 KB0OWL's current licensee, walking backwards.
- Butler, Karen KIAgranted 2017-05-09cancelled 2017-06-17
Successor callsigns
Callsigns held now by people who previously held KB0OWL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB0OWL, oldest first.
- STEINBACH, MURIEL D IA1995-01-19 → cancelled 2006-09-12
- Butler, Karen K IA2017-06-17 active