About this number
(641) 257 is a landline based telephone number operated by Qwest Corporation and is located in zip code 50616 in the city of Charles City, Iowa, which is in Floyd County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 641 and Network Numbering Exchange (NXX - also known as a prefix) of 257. It has an Operating Company Number (OCN) of 9631. A Common Language Location Identifier (CLLI) of CHCYIATCRS2. As well as a Local access and transport area (LATA) of 632. Zip code 50616 has a population of 10,344 as of the 2010 census.