N0KSR
Available1x3District 0
Competitive callsign — 2 applications filed with the FCC.
License HolderISENBERG, THOMAS C
License ClassTechnician
Min. Class RequiredGeneral
LocationCentennial, CO
Grant DateSep 1, 2009
Expiration DateSep 1, 2019
Cancellation DateSep 2, 2021
Available for ApplicationsSep 2, 2021
N0KSR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by ISENBERG, THOMAS C in Centennial, CO. 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 Last Frontier Council Amateur Radio Club on Apr 1, 2025. N0KSR has 3 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-. ----- -.- ... .-.
CW Weight: 34 units(Moderate)
Voice Phonetics
November Zero Kilo Sierra Romeo
Readability: 6/10(Good readability)
This callsign is available now
Requires General license or higher to apply for this callsign format (1x3).
License History
- License ExpiredSep 2, 2021
- License RenewedSep 1, 2009
- FRN Association Letter SentSep 1, 2009
Vanity Application Activity
Competing applications filed with the FCC for this callsign.