Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2MMM callsign genealogy
Currently held by Dunn, Billy
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 K2MMM's current licensee, walking backwards.
- Dunn, BillyTXgranted 2024-07-20cancelled 2024-08-31
Successor callsigns
Callsigns held now by people who previously held K2MMM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2MMM, oldest first.
- Strain, Michael P NJ2013-01-17 → cancelled 2024-07-16
- Dunn, Billy TX2024-08-31 active