Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3MTM callsign genealogy
Currently held by Mackin, Michael T
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 K3MTM's current licensee, walking backwards.
- Mackin, Michael TPAgranted 2018-05-09cancelled 2018-05-30
Successor callsigns
Callsigns held now by people who previously held K3MTM.
No current licensee on record previously held this callsign.