About this number
(956) 831 is a landline based telephone number operated by Southwestern Bell and is located in zip code 78521 in the city of Brownsville, Texas, which is in Cameron County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 956 and Network Numbering Exchange (NXX - also known as a prefix) of 831. It has an Operating Company Number (OCN) of 9533. A Common Language Location Identifier (CLLI) of BWVLTXTERS0. As well as a Local access and transport area (LATA) of 568. Zip code 78521 has a population of 93,818 as of the 2010 census.