K4YI
Active1x2District 4
Competitive callsign — 4 applications filed with the FCC.
License HolderMARTIZ, CARLOS A
License ClassTechnician
Min. Class RequiredAmateur Extra
LocationBRONX, NY
Grant DateAug 9, 2022
Expiration DateSep 5, 2032
K4YI is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by MARTIZ, CARLOS A in BRONX, NY. This callsign has attracted significant interest in the amateur radio community, with 4 vanity applications filed with the FCC. The most recent was submitted by Burke, Tracy A on Feb 17, 2026. K4YI has 7 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- -.-- ..
CW Weight: 26 units(Light (fast to send))
Voice Phonetics
Kilo Four Yankee India
Readability: 8/10(High readability)
License History
- License RenewedAug 9, 2022
- License RenewedJul 14, 2012
- Administrative Update AppliedMar 6, 2012
- Vanity Callsign GrantedSep 5, 2002
- License IssuedSep 5, 2002
- Internal Correction AppliedAug 14, 2002
- Internal Correction AppliedAug 14, 2002
Vanity Application Activity
Competing applications filed with the FCC for this callsign.