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KC7MDT

Cancelled2x3District 7

Competitive callsign — 1 application filed with the FCC.

License HolderHollbrook, Charles W

License ClassGeneral

Min. Class RequiredTechnician

LocationWalnut Creek, CA

Grant DateMar 1, 2019

Cancellation DateMar 24, 2026

Available for ApplicationsMar 25, 2028

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KC7MDT

Cancelled2x3District 7

Competitive callsign — 1 application filed with the FCC.

License HolderHollbrook, Charles W

License ClassGeneral

Min. Class RequiredTechnician

LocationWalnut Creek, CA

Grant DateMar 1, 2019

Cancellation DateMar 24, 2026

Available for ApplicationsMar 25, 2028

KC7MDT is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Hollbrook, Charles W in Walnut Creek, 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 Petersen, Cade L on Feb 11, 2019. KC7MDT has 9 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 38 units(Moderate)

Voice Phonetics

Kilo Charlie Seven Mike Delta Tango

Readability: 7.5/10(High readability)

Available Mar 25, 2028 (559 days remaining)

Requires Technician license or higher to apply for this callsign format (2x3).

License History

License CanceledMar 24, 2026
Administrative Update AppliedJun 6, 2024
Administrative Update AppliedMay 27, 2023
License ModifiedAug 22, 2022
Administrative Update AppliedFeb 21, 2020
License ModifiedMar 29, 2019
Vanity Callsign GrantedMar 1, 2019
License IssuedMar 1, 2019
License ExpiredJul 13, 2007

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Petersen, Cade LFiled Feb 11, 2019
Not awardedFCC ↗

Search external databases

QRZ ↗HamQTH ↗

Explore nearby callsigns

← KC7MDS KC7MDU →

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

KC7MDT FCC Vanity Status: 1 Competing Application & History