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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, 2025
Not awardedFCC ↗

Search external databases

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FCC data as of Jul 9, 2026

K1IO FCC Vanity Status: 1 Competing Application & History