KD1OO
Available2x2District 1
Competitive callsign — 2 applications filed with the FCC.
License HolderSMALL, JOHN D
License ClassAdvanced
Min. Class RequiredGeneral
LocationCONCORD, MA
Grant DateMay 4, 1993
Expiration DateMay 4, 2003
Cancellation DateMay 5, 2005
Available for ApplicationsMay 5, 2005
KD1OO is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by SMALL, JOHN D in CONCORD, MA. This callsign has attracted significant interest in the amateur radio community, with 2 vanity applications filed with the FCC. The most recent was submitted by Landi, Thomas J on Jul 20, 2026. KD1OO has 1 recorded FCC license history event.
CW & Voice Analysis
Morse Code
-.- -.. .---- --- ---
CW Weight: 43 units(Heavy (slower to send))
Voice Phonetics
Kilo Delta One Oscar Oscar
Readability: 8/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (2x2).
License History
- License ExpiredMay 5, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.