About this number
(580) 821 is a landline based telephone number operated by Southwestern Bell and is located in zip code 73644 in the city of Elk City, Oklahoma, which is in Beckham County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 580 and Network Numbering Exchange (NXX - also known as a prefix) of 821. It has an Operating Company Number (OCN) of 9533. A Common Language Location Identifier (CLLI) of EKCYOKMARS1. As well as a Local access and transport area (LATA) of 536. Zip code 73644 has a population of 14,147 as of the 2010 census.