About this number
(712) 858 is a landline based telephone number operated by Superior Telephone Cooperative and is located in zip code 51363 in the city of Superior, Iowa, which is in Dickinson 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 858. It has an Operating Company Number (OCN) of 1307. A Common Language Location Identifier (CLLI) of SPRRIAXODS0. As well as a Local access and transport area (LATA) of 630. Zip code 51363 has a population of 130 as of the 2010 census.