Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MAO callsign genealogy
Currently held by OLLIGES, MARK 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 K4MAO's current licensee, walking backwards.
- OLLIGES, MARK AKYgranted 1996-09-19cancelled 2000-03-11
- KF4CYKno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K4MAO.
No current licensee on record previously held this callsign.