About this number
(636) 223 is a landline based telephone number operated by At&T Local and is located in zip code 63103 in the city of Saint Louis, Missouri, which is in St. Louis County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 636 and Network Numbering Exchange (NXX - also known as a prefix) of 223. It has an Operating Company Number (OCN) of 7421. A Common Language Location Identifier (CLLI) of STLSMO09DS2. As well as a Local access and transport area (LATA) of 520. It was first assigned for usage on 01/29/2002. Zip code 63103 has a population of 6,900 as of the 2010 census.