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KC4RDT

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderWarren, Michael R

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationRed Oak, OK

Grant DateApr 24, 1997

Expiration DateDec 24, 2000

Cancellation DateJan 25, 2000

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KC4RDT

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderWarren, Michael R

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationRed Oak, OK

Grant DateApr 24, 1997

Expiration DateDec 24, 2000

Cancellation DateJan 25, 2000

Available for ApplicationsJan 26, 2002

KC4RDT is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by Warren, Michael R in Red Oak, OK. 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 Terrelonge, Richard D on Aug 10, 2010. KC4RDT has 1 recorded FCC license history event.

CW & Voice Analysis

Morse Code

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

CW Weight: 35 units(Moderate)

Voice Phonetics

Kilo Charlie Four Romeo Delta Tango

Readability: 7/10(Good readability)

This callsign is available now

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

License History

License CanceledJan 25, 2000

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Terrelonge, Richard DFiled Aug 10, 2010
Not awardedFCC ↗

Search external databases

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FCC data as of Sep 15, 2026

KC4RDT FCC Vanity Status: 1 Competing Application & History