About this number
(210) 431 is a landline based telephone number operated by Southwestern Bell and is located in zip code 78237 in the city of San Antonio, Texas, which is in Bexar County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 210 and Network Numbering Exchange (NXX - also known as a prefix) of 431. It has an Operating Company Number (OCN) of 9533. A Common Language Location Identifier (CLLI) of SNANTXGEDS0. As well as a Local access and transport area (LATA) of 566. Zip code 78237 has a population of 36,929 as of the 2010 census.