Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4YOF callsign genealogy
Currently held by MC GUINNESS, BLAIR B
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 K4YOF's current licensee, walking backwards.
- MC GUINNESS, BLAIR BNCgranted 2015-02-17cancelled 2017-11-18
Successor callsigns
Callsigns held now by people who previously held K4YOF.
No current licensee on record previously held this callsign.