KNOXVILLE, Tenn. — A new area code and ten-digit dialing process is coming to East Tennessee. Originally, the Tennessee Public Utility Commission said that the new 729 area code and 10-digit dialing ...
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10-digit dialing starts for East Tennessee's 423 area code. Here's what you need to know
East Tennessee has another new area code, and it's going to add three more digits to many people's local calls. Starting Aug. 5, people in upper and lower East Tennessee in the 423 area code region ...
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