AI4MM
Active2x2District 4
Competitive callsign — 5 applications filed with the FCC.
License HolderMueller, Markus
License ClassAmateur Extra
Min. Class RequiredGeneral
LocationAve Maria, FL
Grant DateOct 3, 2023
Expiration DateOct 3, 2033
AI4MM is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Mueller, Markus in Ave Maria, FL. This callsign has attracted significant interest in the amateur radio community, with 5 vanity applications filed with the FCC. The most recent was submitted by Mueller, Markus on Sep 14, 2023. AI4MM has 12 recorded FCC license history events.
CW & Voice Analysis
Morse Code
.- .. ....- -- --
CW Weight: 25 units(Light (fast to send))
Voice Phonetics
Alpha India Four Mike Mike
Readability: 8.5/10(High readability)
License History
- Administrative Update AppliedSep 18, 2025
- Administrative Update AppliedMar 19, 2025
- Administrative Update AppliedMay 14, 2024
- Administrative Update AppliedOct 4, 2023
- License IssuedOct 3, 2023
- Vanity Callsign GrantedOct 3, 2023
- License CanceledFeb 23, 2019
- Vanity Callsign GrantedFeb 9, 2018
- License IssuedFeb 9, 2018
- License CanceledJan 28, 2006
- System-Generated GrantOct 17, 2005
- License Issued
Vanity Application Activity
Competing applications filed with the FCC for this callsign.