Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM5MT callsign genealogy
Currently held by MACK, JOSEPH F
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 KM5MT's current licensee, walking backwards.
- WB0YSBcancelledcancelled 1997-11-04
Successor callsigns
Callsigns held now by people who previously held KM5MT.
No current licensee on record previously held this callsign.