K4SQR
Available1x3District 4
Competitive callsign — 1 application filed with the FCC.
License HolderMILLER, JAMES R
License ClassAdvanced
Min. Class RequiredGeneral
LocationCHARLOTTE, NC
Grant DateMar 20, 2008
Expiration DateMay 6, 2018
Cancellation DateMay 7, 2020
Available for ApplicationsMay 7, 2020
K4SQR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by MILLER, JAMES R in CHARLOTTE, NC. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by LATHAM, DARRELL A on Apr 16, 2026. K4SQR has 2 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ....- ... --.- .-.
CW Weight: 32 units(Moderate)
Voice Phonetics
Kilo Four Sierra Quebec Romeo
Readability: 7/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredMay 7, 2020
- License RenewedMar 20, 2008
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- LATHAM, DARRELL AFiled Apr 16, 2026Not awardedFCC ↗