Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4CEU callsign genealogy
Currently held by Kolb, Michael 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 KN4CEU's current licensee, walking backwards.
- Kolb, Michael AALgranted 2012-08-16cancelled 2017-03-30
Successor callsigns
Callsigns held now by people who previously held KN4CEU.
No current licensee on record previously held this callsign.