Area Code of Knoxville - Calling Code of Knoxville

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Calling Code of Knoxville, United States of America, Area Code of Knoxville, United States of America, Calling Area Code of Knoxville, Dialing Area Code of Knoxville, International Calling Codes of Knoxville, IP calls to Knoxville, voiceIP to Knoxville, international calling.

The calling code of Knoxville is
423

The area code of Knoxville is 423.

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