K1MRT
Active1x3District 1
Competitive callsign — 3 applications filed with the FCC.
License HolderTierney, Matthew R
License ClassGeneral
Min. Class RequiredGeneral
LocationLexington, MA
Grant DateMar 10, 2017
Expiration DateMar 10, 2027
K1MRT is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Tierney, Matthew R in Lexington, MA. This callsign has attracted significant interest in the amateur radio community, with 3 vanity applications filed with the FCC. The most recent was submitted by Kalapun, Taras on Jun 22, 2020. K1MRT has 8 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .---- -- .-. -
CW Weight: 34 units(Moderate)
Voice Phonetics
Kilo One Mike Romeo Tango
Readability: 8/10(High readability)
License History
- License ModifiedJul 9, 2025
- Administrative Update AppliedJul 1, 2020
- Administrative Update AppliedJul 7, 2017
- License RenewedMar 10, 2017
- Administrative Update AppliedDec 5, 2015
- Administrative Update AppliedJul 24, 2010
- License IssuedDec 12, 2006
- Vanity Callsign GrantedDec 12, 2006
Vanity Application Activity
Competing applications filed with the FCC for this callsign.