About this number
(515) 257 is a landline based telephone number operated by At&T Local and is located in zip code 50309 in the city of Des Moines, Iowa, which is in Polk County, and is in the Midwest. It has a Number Planning Area (NPA - also known as an Area Code) of 515 and Network Numbering Exchange (NXX - also known as a prefix) of 257. It has an Operating Company Number (OCN) of 7421. A Common Language Location Identifier (CLLI) of DESMIADTDS5. As well as a Local access and transport area (LATA) of 632. It was first assigned for usage on 05/14/2001. Zip code 50309 has a population of 5,431 as of the 2010 census.