NT4ZO
Available2x2District 4
Competitive callsign — 2 applications filed with the FCC.
License HolderTHORNTON, JANE M
License ClassTechnician
Min. Class RequiredGeneral
LocationPASO ROBLES, CA
Grant DateOct 5, 1998
Expiration DateOct 5, 2008
Cancellation DateOct 11, 2000
Available for ApplicationsOct 12, 2002
NT4ZO is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by THORNTON, JANE M in PASO ROBLES, CA. 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 Higdon, Michael S on Apr 20, 2026. NT4ZO has 1 recorded FCC license history event.
CW & Voice Analysis
Morse Code
-. - ....- --.. ---
CW Weight: 31 units(Moderate)
Voice Phonetics
November Tango Four Zulu Oscar
Readability: 7.5/10(High readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (2x2).
License History
- License CanceledOct 11, 2000
Vanity Application Activity
Competing applications filed with the FCC for this callsign.