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KC4KNB

Available2x3District 4

No competing applications on record.

License HolderKoolkin, Robert J

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationGill, MA

Grant DateJul 29, 1999

Expiration DateJul 29, 2009

Cancellation DateJul 30, 2011

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KC4KNB

Available2x3District 4

No competing applications on record.

License HolderKoolkin, Robert J

License ClassAmateur Extra

Min. Class RequiredTechnician

LocationGill, MA

Grant DateJul 29, 1999

Expiration DateJul 29, 2009

Cancellation DateJul 30, 2011

Available for ApplicationsJul 30, 2011

KC4KNB is a 2x3 format amateur radio callsign. It is currently registered to Koolkin, Robert J in Gill, MA. There are currently no competing vanity applications or pending FCC filings on record for this callsign. Add it to your watchlist to receive an immediate alert if another operator files a vanity application.

CW & Voice Analysis

Morse Code

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

CW Weight: 39 units(Moderate)

Voice Phonetics

Kilo Charlie Four Kilo November Bravo

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 ExpiredJul 30, 2011

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

No competing applications on record. Verify on the FCC ULS application search before filing.

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FCC data as of Sep 15, 2026

Is KC4KNB Available? FCC Vanity Status & Watchlist