About this number
(918) 257 is a landline based telephone number operated by Southwestern Bell and is located in zip code 74331 in the city of Afton, Oklahoma, which is in Delaware County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 918 and Network Numbering Exchange (NXX - also known as a prefix) of 257. It has an Operating Company Number (OCN) of 9533. A Common Language Location Identifier (CLLI) of AFTNOKMARS1. As well as a Local access and transport area (LATA) of 538. Zip code 74331 has a population of 7,258 as of the 2010 census.