K5CDX
Cancelled1x3District 5
Competitive callsign — 4 applications filed with the FCC.
License HolderSCHWARTZ, HOWARD S
License ClassAdvanced
Min. Class RequiredGeneral
LocationSILVER SPRING, MD
Grant DateJun 12, 2021
Cancellation DateJan 25, 2025
Available for ApplicationsJan 26, 2027
K5CDX is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by SCHWARTZ, HOWARD S in SILVER SPRING, MD. 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 Pate, Lee M on Jul 7, 2026. K5CDX has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- ..... -.-. -.. -..-
CW Weight: 33 units(Moderate)
Voice Phonetics
Kilo Five Charlie Delta X-ray
Readability: 8/10(High readability)
Available Jan 26, 2027 (144 days remaining)
Requires General license or higher to apply for this callsign format (1x3).
License History
- License CanceledJan 25, 2025
- Administrative Update AppliedJan 7, 2025
- License IssuedJun 12, 2021
- Vanity Callsign GrantedJun 12, 2021
- License ExpiredAug 22, 2019
- License RenewedSep 14, 2007
Vanity Application Activity
Competing applications filed with the FCC for this callsign.