Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0FAS callsign genealogy
Currently held by Steinhaus, Fredrick A
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 K0FAS's current licensee, walking backwards.
- Steinhaus, Fredrick AMNgranted 2014-01-15cancelled 2014-02-04
Successor callsigns
Callsigns held now by people who previously held K0FAS.
- Steinhaus, Fredrick AMNgranted 2019-08-03