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K4RSQ

Active1x3District 4

Competitive callsign — 10 applications filed with the FCC.

License HolderTreffinger, Kenneth J

License ClassAmateur Extra

Min. Class RequiredGeneral

LocationMarion, NY

Grant DateJul 25, 2023

Expiration DateSep 6, 2033

K4RSQ is a highly sought-after 1x3 format amateur radio callsign. The license is currently held by Treffinger, Kenneth J in Marion, NY. This callsign has attracted significant interest in the amateur radio community, with 10 vanity applications filed with the FCC. The most recent was submitted by Tuftee, Spencer D on Apr 4, 2016. K4RSQ has 9 recorded FCC license history events.

CW & Voice Analysis

Morse Code

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

CW Weight: 32 units(Moderate)

Voice Phonetics

Kilo Four Romeo Sierra Quebec

Readability: 7/10(Good readability)

License History

Administrative Update AppliedSep 7, 2023
License RenewedJul 25, 2023
Administrative Update AppliedMay 14, 2022
License ModifiedOct 1, 2015
License ModifiedSep 25, 2013
Vanity Callsign GrantedSep 6, 2013
License IssuedSep 6, 2013
License ExpiredJul 17, 2012
License IssuedJul 14, 2000

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

Tuftee, Spencer DFiled Apr 4, 2016
Not awardedFCC ↗
Treffinger, Kenneth JFiled Aug 19, 2013
Not awardedFCC ↗
HEATON, PAULA EFiled Jun 26, 2000
Not awardedFCC ↗
Overstreet, Ashley RFiled Jun 26, 2000

Search external databases

QRZ ↗HamQTH ↗

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FCC data as of Sep 4, 2026

Not awarded

MARTINEZ, ELIBERTOFiled Jul 30, 1999

Not awardedFCC ↗

USCG AUXILIARY TAMPA BAY AMATEUR RADIO CFiled Jul 30, 1999

Not awardedFCC ↗

USCG AUXILIARY TAMPA BAY AMATEUR RADIO CFiled Jul 30, 1999

DismissedFCC ↗

VELA, ESPERANZAFiled Jul 30, 1999

DismissedFCC ↗

DUONG, DAVID NFiled Jul 30, 1999

DismissedFCC ↗

USCG AUXILIARY TAMPA BAY AMATEUR RADIOFiled Jul 30, 1999

DismissedFCC ↗

K4RSQ FCC Vanity Status: 10 Competing Applications & History