Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0OIL callsign genealogy
Currently held by Johnson, Steven T
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 K0OIL's current licensee, walking backwards.
- Johnson, Steven TWAgranted 2012-04-27cancelled 2012-05-22
Successor callsigns
Callsigns held now by people who previously held K0OIL.
No current licensee on record previously held this callsign.