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K4ZUM

Active1x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderHASTINGS, CHARLES M

License ClassTechnician

Min. Class RequiredGeneral

LocationSan Jose, CA

Grant DateMay 16, 2023

Expiration DateMay 16, 2033

K4ZUM is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by HASTINGS, CHARLES M in San Jose, CA. 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 Slagle, Timothy G on Apr 28, 2023. K4ZUM has 2 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 33 units(Moderate)

Voice Phonetics

Kilo Four Zulu Uniform Mike

Readability: 8/10(High readability)

License History

License IssuedMay 16, 2023
Vanity Callsign GrantedMay 16, 2023

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Slagle, Timothy GFiled Apr 28, 2023
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

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FCC data as of Sep 4, 2026

K4ZUM FCC Vanity Status: 1 Competing Application & History