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KO4HJR

Active2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderMilligan, William F

License ClassTechnician

Min. Class RequiredTechnician

LocationUpper Marlboro, MD

Grant DateSep 16, 2020

Expiration DateSep 16, 2030

KO4HJR is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Milligan, William F in Upper Marlboro, MD. 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 Richardson, Lloyd C on Nov 22, 2021. KO4HJR has 3 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 42 units(Heavy (slower to send))

Voice Phonetics

Kilo Oscar Four Hotel Juliet Romeo

Readability: 6.5/10(Good readability)

License History

License ModifiedNov 24, 2020
System-Generated GrantSep 16, 2020
License IssuedSep 16, 2020

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Richardson, Lloyd CFiled Nov 22, 2021
Not awardedFCC ↗

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FCC data as of Sep 4, 2026

KO4HJR FCC Vanity Status: 1 Competing Application & History