About this number
(712) 346 is a landline based telephone number operated by At&T Local and is located in zip code 51103 in the city of Sioux City, Iowa, which is in Woodbury County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 712 and Network Numbering Exchange (NXX - also known as a prefix) of 346. It has an Operating Company Number (OCN) of 7421. A Common Language Location Identifier (CLLI) of SXCYIAAT6MD. As well as a Local access and transport area (LATA) of 630. It was first assigned for usage on 10/02/2002. Zip code 51103 has a population of 17,453 as of the 2010 census.