Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8CMC callsign genealogy
Currently held by Callahan, Corey M
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 K8CMC's current licensee, walking backwards.
- Callahan, Corey MOHgranted 2020-08-31cancelled 2024-04-12
Successor callsigns
Callsigns held now by people who previously held K8CMC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8CMC, oldest first.
- Cashin, Christopher M MI2007-07-13 → cancelled 2019-07-16
- Callahan, Corey M OH2024-04-12 active