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K4MZR

Active1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderShelton, Gregg A

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationSmithfield, VA

Grant DateAug 13, 2025

Expiration DateSep 29, 2035

K4MZR is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Shelton, Gregg A in Smithfield, VA. 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 Shelton, Gregg A on Sep 10, 2015. K4MZR has 7 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 33 units(Moderate)

Voice Phonetics

Kilo Four Mike Zulu Romeo

Readability: 8/10(High readability)

License History

License RenewedAug 13, 2025
Administrative Update AppliedNov 7, 2023
Administrative Update AppliedOct 5, 2017
License ModifiedApr 26, 2016
Vanity Callsign GrantedSep 29, 2015
License IssuedSep 29, 2015
License ExpiredSep 29, 2009

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Shelton, Gregg AFiled Sep 10, 2015
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← K4MZP K4MZU →

FCC data as of Sep 4, 2026

K4MZR FCC Vanity Status: 1 Competing Application & History