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KM4SP

Available2x2District 4

Competitive callsign — 1 application filed with the FCC.

License HolderGibson, William D

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationPittsboro, NC

Grant DateMar 6, 1990

Expiration DateMar 6, 2000

Cancellation DateMar 7, 2002

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KM4SP

Available2x2District 4

Competitive callsign — 1 application filed with the FCC.

License HolderGibson, William D

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationPittsboro, NC

Grant DateMar 6, 1990

Expiration DateMar 6, 2000

Cancellation DateMar 7, 2002

Available for ApplicationsMar 7, 2002

KM4SP is a highly sought-after 2x2 format amateur radio callsign. The license is currently held by Gibson, William D in Pittsboro, NC. 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 Webb, James B on Mar 9, 2015. KM4SP has 1 recorded FCC license history event.

CW & Voice Analysis

Morse Code

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

CW Weight: 31 units(Moderate)

Voice Phonetics

Kilo Mike Four Sierra Papa

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 ExpiredMar 7, 2002

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Webb, James BFiled Mar 9, 2015
DismissedFCC ↗

Search external databases

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FCC data as of Sep 12, 2026

KM4SP FCC Vanity Status: 1 Competing Application & History