About this number
(713) 731 is a landline based telephone number operated by Southwestern Bell and is located in zip code 77033 in the city of Houston, Texas, which is in Harris County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 713 and Network Numbering Exchange (NXX - also known as a prefix) of 731. It has an Operating Company Number (OCN) of 9533. A Common Language Location Identifier (CLLI) of HSTNTXREDS0. As well as a Local access and transport area (LATA) of 560. It was first assigned for usage on 04/19/2001. Zip code 77033 has a population of 27,965 as of the 2010 census.