About this number
(972) 203 is a landline based telephone number operated by Southwestern Bell and is located in zip code 75182 in the city of Sunnyvale, Texas, which is in Dallas County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 972 and Network Numbering Exchange (NXX - also known as a prefix) of 203. It has an Operating Company Number (OCN) of 9533. A Common Language Location Identifier (CLLI) of DLLSTXSUDS0. As well as a Local access and transport area (LATA) of 552. Zip code 75182 has a population of 5,118 as of the 2010 census.