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KA1EF

Available2x2District 1

Competitive callsign — 2 applications filed with the FCC.

License HolderCALDWELL JR, WILLIAM

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationNAHANT, MA

Grant DateApr 26, 2004

Expiration DateJul 13, 2014

Cancellation DateJul 14, 2016

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KA1EF

Available2x2District 1

Competitive callsign — 2 applications filed with the FCC.

License HolderCALDWELL JR, WILLIAM

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationNAHANT, MA

Grant DateApr 26, 2004

Expiration DateJul 13, 2014

Cancellation DateJul 14, 2016

Available for ApplicationsJul 14, 2016

KA1EF is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by CALDWELL JR, WILLIAM in NAHANT, 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 DeLap, Diane M on May 11, 2021. KA1EF has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

-.- .- .---- . ..-.

CW Weight: 31 units(Moderate)

Voice Phonetics

Kilo Alpha One Echo Foxtrot

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 ExpiredJul 14, 2016
Tax ID (TIN) AddedApr 26, 2004

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

DeLap, Diane MFiled May 11, 2021
DismissedFCC ↗
BOGEN, STEVE AFiled Dec 16, 2019
Not awardedFCC ↗

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FCC data as of Jul 29, 2026

KA1EF FCC Vanity Status: 2 Competing Applications & History