The main area code, 214, was one of the original area codes established in October 1947. It originally covered the entire northeastern quadrant of Texas, from Fort Worth to the border with Arkansas and Louisiana. In 1954, most of Tarrant County was combined with much of the eastern portion of area code 915 to form area code 817.
Despite Dallas' dramatic growth in the second half of the 20th century, this configuration remained in place for 36 years. Finally, in 1990, the entire eastern portion of the 214 area code was split off as area code 903.
The 1990 split was intended as a long-term solution, but within five years 214 was close to exhaustion due to the rapid growth of the Metroplex as well as the popularity of cell phones, fax machines and pagers. Additionally, the entire Metroplex is a single LATA, so several numbers in 817 weren't available for use. To solve this problem, in 1995 all of the old 214 territory outside the Dallas Central Business District was split off as area code 972. Within only two years, however, both 214 and 972 were on the verge of exhaustion. To solve the problem, area code 469 was introduced on July 1, 1999 as an overlay for most of the eastern portion of the Metroplex. At the same time, the 214-972 boundary was unified, and 972 was converted into an additional overlay for the entire region. The result was three area codes overlaying the same area, with ten-digit dialing required for all calls.
While this had the effect of allocating over 23 million numbers to an area of just over nine million people, under current projections the Dallas area will not need another area code until late 2020.
Counties served by these area codes:
Towns and cities served by these area codes:
|Texas area codes: 210/726, 214/469/972, 254, 281/346/713/832, 325, 361, 409, 430/903, 432, 512/737, 682/817, 806, 830, 915, 936, 940, 956, 979|
|North: 430/903, 940|
|West: 254, 682/817, 940||Area codes 214/469/972||East: 430/903|
|South: 254, 430/903|