About this number
(573) 400-0004 is a landline based telephone number operated by Socket Telecom, LLC - Mo and is located in zip code 63102 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 573, a Network Numbering Exchange (NXX - also known as a prefix) of 400 and a subscriber number of 0004. It has an Operating Company Number (OCN) of 554A. A Common Language Location Identifier (CLLI) of STLSMOZCDS2. As well as a Local access and transport area (LATA) of 520. It was first assigned for usage on 12/18/2003. Zip code 63102 has a population of 2,316 as of the 2010 census.