K1IO
Active1x2District 1
Competitive callsign — 1 application filed with the FCC.
License HolderGOLDSTEIN, FRED R
License ClassAmateur Extra
Min. Class RequiredAmateur Extra
LocationNeedham Heights, MA
Grant DateOct 1, 2025
Expiration DateNov 28, 2035
K1IO is a highly sought-after 1x2 format amateur radio callsign. The license is currently held by GOLDSTEIN, FRED R in Needham Heights, MA. 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 Kaplan, Jon on Nov 18, 2025. K1IO has 6 recorded FCC license history events.
CW & Voice Analysis
Morse Code
-.- .---- .. ---
CW Weight: 31 units(Moderate)
Voice Phonetics
Kilo One India Oscar
Readability: 8/10(High readability)
License History
- License RenewedOct 1, 2025
- Administrative Update AppliedJan 8, 2021
- Administrative Update AppliedSep 1, 2018
- License RenewedOct 15, 2015
- Administrative Update AppliedSep 11, 2007
- License RenewedSep 21, 2005
Vanity Application Activity
Competing applications filed with the FCC for this callsign.
- Kaplan, JonFiled Nov 18, 2025Not awardedFCC ↗