Confidence: Medium · Source: FCC ULS · As of 2026-09-09
K4MMS callsign genealogy
Currently held by SIMMONS, MATTHEW 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 K4MMS's current licensee, walking backwards.
- SIMMONS, MATTHEW MVAgranted 2008-01-22cancelled 2010-07-16
Successor callsigns
Callsigns held now by people who previously held K4MMS.
- SIMMONS, MATTHEW MVAgranted 2024-09-28