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...

Chattanooga, Knoxville, and the Tri-Cities—was assigned area code 423. The dividing line between 615 and 423 mostly tracked along the boundary between the Eastern...

River received the new area code 615. This division remained in place for 41 years, until area code 423 was created as the area code for most of East Tennessee...

touches Alabama's area code 256/938 and 334 on the far west, Tennessee's area code 423 on the northwest, North Carolina's area code 828 and Upstate South...

October 2022. "B.C. is getting a new area code next year". CBC News. 14 February 2018. Retrieved 19 February 2018. "PL-423: Introduction of NPA 721 (Sint Maarten)"...

Area code 828 is a telephone area code in the North American Numbering Plan (NANP) for most of the western third of the U.S. state of North Carolina. The...

selection of area codes. For example, when area code 423 (East Tennessee) was split in 1999, the region surrounding Knoxville was assigned area code 865, chosen...

Area codes 256 and 938 are telephone area codes in the North American Numbering Plan (NANP) for North Alabama, as well as some eastern portions of the...

Area codes 336 and 743 are telephone overlay area codes in the North American Numbering Plan (NANP) for most of north-central and northwestern North Carolina...

Area code 901 is a telephone area code in the North American Numbering Plan (NANP) for Memphis, Tennessee, and most of its inner-ring suburbs. It is the...

Area code 662 is a telephone area code in the North American Numbering Plan (NANP) for the northern half of the U.S. state of Mississippi, including the...

Area codes 270 and 364 are telephone overlay area codes in the North American Numbering Plan (NANP) for the Commonwealth of Kentucky's western and south...

Area codes 870 and 327 are telephone area codes in the North American Numbering Plan (NANP) for southern, eastern, and most of northern Arkansas. 870...

Area code 434 is a telephone area code in the North American Numbering Plan (NANP) for the south-central area of the Commonwealth of Virginia. Lynchburg...

Area code 931 is the telephone area code in the North American Numbering Plan (NANP) serving a horseshoe-shaped region of twenty-eight counties in Middle...

Area codes 573 and 235 are telephone area codes in the North American Numbering Plan (NANP) for most of the eastern half of the U.S. state of Missouri...

Area codes 905, 289, 365, and 742 are telephone area codes in the North American Numbering Plan (NANP) for the Golden Horseshoe region that surrounds Lake...

Area code 276 is a telephone area code in the North American Numbering Plan (NANP) for the western part of the U.S. state of Virginia. It was established...

Area code 731 is a telephone area code in the North American Numbering Plan (NANP) for the western part of the U.S. state of Tennessee. The numbering plan...

Area codes 705, 249, and 683 are telephone area codes in the North American Numbering Plan (NANP) for most of northeastern and central Ontario in Canada...

Area codes 541 and 458 are telephone area codes in the North American Numbering Plan (NANP) for most of the U.S. state of Oregon, excluding only the northwestern...

Area code 218 is a telephone area code in the North American Numbering Plan (NANP) for the northern part of the U.S. state of Minnesota. It is assigned...

Mexico are provided by a telephone numbering plan that specifies groups of area codes for the following regions: Telephone numbers in Mexico "Telephone numbering...

Area codes 778, 236, 672, and 257 are telephone area codes in the North American Numbering Plan (NANP) for the Canadian province of British Columbia. They...

Area codes 519, 226, 548, and 382 are overlay telephone area codes in the North American Numbering Plan (NANP) for most of southwestern Ontario. Area...

Area code 802 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. State of Vermont. AT&T established the numbering plan area...

in 2001. 865 – Knoxville: Split from 423 in 1999. 901 – Memphis: One of the original North American area codes assigned in 1947, initially servicing...

Area code 604 is a telephone area code in the North American Numbering Plan for the southwestern corner of British Columbia, Canada. The numbering plan...

Area code 605 is the telephone area code in the North American Numbering Plan for the entire U.S. state of South Dakota. The numbering plan area was designated...

Area code 302 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Delaware. It is Delaware's only area code, and...