Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K8MTM callsign genealogy
Currently held by MESSMER, RUTH ANN E
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 K8MTM's current licensee, walking backwards.
- Mc Cubbin, Matthew TMIgranted 2002-09-19cancelled 2011-08-02
Successor callsigns
Callsigns held now by people who previously held K8MTM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8MTM, oldest first.
- MESSMER, RUTH ANN E OH1994-09-08 → cancelled 2006-09-09
- McCubbin, Matthew T MI2022-01-11 active