About this number
(580) 688 is a landline based telephone number operated by Pioneer Telephone Cooperative, and is located in zip code 73550 in the city of Hollis, Oklahoma, which is in Harmon 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 688. It has an Operating Company Number (OCN) of 2018. A Common Language Location Identifier (CLLI) of HLLSOKXARS0. As well as a Local access and transport area (LATA) of 536. Zip code 73550 has a population of 2,512 as of the 2010 census.