Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9ACM callsign genealogy
Currently held by McGuire, Michael S
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 K9ACM's current licensee, walking backwards.
- McGuire, Michael SILgranted 2016-08-11cancelled 2017-09-16
Successor callsigns
Callsigns held now by people who previously held K9ACM.
No current licensee on record previously held this callsign.