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List of Tennessee area codes. Map of all Tennessee area codes. 423 - Chattanooga, Johnson City, Kingsport, Bristol: Initially split from 615 in 1995. 615 and 629 (overlay) - Greater Nashville, including Murfreesboro, Mount Juliet: 615 initially split from 901 in a 1954 flash-cut. The 629 overlay for the entire area code was made effective in 2015.
1993: split to create 905. 2001: overlaid by 647. 2013: overlaid by 437. 2025: overlaid by 942. area code 387 is reserved as a fifth code for the region. 417. Missouri (Springfield, Joplin, Branson, Lamar, Lebanon, and most of southwestern Missouri) 1950. created from parts of the area codes 314 and 816.
2025 – 4th Qtr [3] April 26, 2025[4][22] NPA boundary changes, overlay expansions, etc. 564. 206. Washington. 2026 – 1st Qtr. April 5, 2025[23] Other area codes that are expected to exhaust by the end of 2027 that do not have an approved relief plan: 352, 502, 520, 603, 714/657, 718/347/929, 765 and 949.
Tennessee Public Utility Commission approved a new 729 area code for the existing 423 region in eastern Tennessee. The change goes into effect Aug. 5. If you have a 423 number, don't worry.
When multiple NPA codes serve an area in an overlay arrangement, ten-digit (10D) dialing is required. Seven-digit (7D) dialing may be permissible in areas with single area codes. [45] Depending on the requirement of toll alerting, it may be necessary to prefix a telephone number with 1. The NANPA publishes dial plan information for individual ...
713. Greater Houston, Texas. 289, 365. 905. Golden Horseshoe region of Ontario, including suburban Toronto, Hamilton, Oshawa, and the Niagara Peninsula in Ontario. 321. 407. Central Florida. In addition to being the sole area code in the Space Coast region around the Kennedy Space Center, this is the only partial overlay area code in North America.
Area codes 615 and 629. Area codes 615 and 629 are area codes in Tennessee serving Nashville (Davidson County) and the 12 surrounding counties. 615 is the main area code, while 629 is an overlay covering the same area that began service in 2014. Murfreesboro, Franklin, Brentwood, Gallatin, Hendersonville, and Lebanon are other major cities in ...
Area code 423 (green) Area code 423 is a telephone area code in the North American Numbering Plan for the U.S. state of Tennessee. It comprises two disconnected areas of East Tennessee (as well as portions of Van Buren and Sequatchie counties in Middle Tennessee) that are separated by area code 865. Principal cities in the northern part of the ...