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KM4THS

Active2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderSpears, Zachary D

License ClassTechnician

Min. Class RequiredTechnician

LocationMemphis, TN

Grant DateFeb 21, 2026

Expiration DateApr 18, 2036

KM4THS is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Spears, Zachary D in Memphis, TN. 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 Reser, Benjamin on Aug 8, 2016. KM4THS has 4 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 30 units(Light (fast to send))

Voice Phonetics

Kilo Mike Four Tango Hotel Sierra

Readability: 7.5/10(High readability)

License History

License RenewedFeb 21, 2026
Administrative Update AppliedJan 9, 2018
System-Generated GrantApr 18, 2016
License IssuedApr 18, 2016

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Reser, BenjaminFiled Aug 8, 2016
Not awardedFCC ↗

Search external databases

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← KM4THR KM4THT →

FCC data as of Sep 12, 2026 — may be delayed

KM4THS FCC Vanity Status: 1 Competing Application & History