Find any 713- phone number in Texas

The 713 area code is an area code in the North American Numbering Plan (NANP). It is used in the city of Houston, Texas, and its surrounding areas, including Bellaire, South Houston, and parts of Sugar Land. NANP is a unified telephone numbering plan created in 1947 that has been adopted by the United States and Canada. It assigns each territory in North America with a three-digit area code, followed by a seven-digit local number.

Area codes identify a geographic region where telephone service is available. In the vast majority of cases, area codes are based on the territory's boundaries, making them easy to recognize by their corresponding location. By employing area codes, large geographical areas are often divided into smaller ones, allowing multiple landline and/or mobile telephone numbers within the same region to be allotted. Area codes also play a role in emergency services, as personnel are notified of the ground location of an emergency based on the caller's area code. The 713 area code has been in use since 1947 and covers much of the Houston metropolitan area, making it one of the most populous areas in the U.S. It is one of over 350 area codes currently in use within the NANP.