Area Code Atlas

NPA 817 split from 915

Area code 817 was created in 1953 from the eastern portion of area code 915, establishing a new numbering plan area for central and north Texas, including Fort Worth and the Texoma border area.

NPA 817 created from parts of 214 and 915

Area code 817 was created in 1954 by combining most of Tarrant County from 214 with much of the eastern region of 915, forming a new area code for the Fort Worth region.

NPA 806 created from split of 915 and 817

Area code 806 was created in 1957 by merging most of the northwestern portion of 915 with the western portion of 817 to serve the Texas Panhandle.

Declaration of Jeopardy Situation in NPA 817 (Texas)

NANP-Split of 817 (Texas) Numbering Plan Area (NPA)

Change in Test Number for Split of 817 NPA (Texas)

Area code 254 created in a split from 817

Area code 254 was created on May 25, 1997, as a geographic split from area code 817. The new code was assigned to the Waco, Temple, and Killeen region of central Texas, covering multiple counties including Bell, McLennan, and Coryell.

NPA 940 split from 817

Area code 940 was created on July 7, 1997, as a geographic split from area code 817. The new code covered the Wichita Falls and Denton areas, serving numerous counties in northern Texas.

NPA 940 split from 817

Area code 940 was assigned to the northern portion of the former 817 region, including Wichita Falls and Denton, as part of a three-way split on July 25, 1997. This split was implemented to address number exhaustion in the rapidly growing Metroplex.

NPA 254 split from 817

Area code 254 was created on July 25, 1997, as part of a three-way split of area code 817. The southern portion, including Waco, Temple, and Killeen, became the new 254 area code. The split was necessary due to the increasing demand for telephone numbers in the region.

Extraordinary NPA-Specific Jeopardy Conservation Procedures Announced for 817 NPA (Texas)

NPA 682 overlay on 817 announced

NPA 682 to Overlay NPA 817 (Texas)

NPA 682 overlay added to 817

Area code 682 was added as an overlay to the 817 numbering plan area on October 7, 2000, to address number exhaustion caused by growth in telecommunication services in the Dallas-Fort Worth Metroplex.

NPA exhaust analysis projects future relief for 817/682

An NPA exhaust analysis conducted in October 2023 projected that a third area code will not be required in the western Metroplex until approximately 2038, indicating sufficient numbering resources for the 817/682 overlay complex for the foreseeable future.