Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WO1LF callsign genealogy
Currently held by Katykhin, Michael
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 WO1LF's current licensee, walking backwards.
- Katykhin, MichaelMAgranted 2012-11-14cancelled 2013-01-15
Successor callsigns
Callsigns held now by people who previously held WO1LF.
No current licensee on record previously held this callsign.