About this number
(405) 321 is a landline based telephone number operated by Southwestern Bell and is located in zip code 73069 in the city of Norman, Oklahoma, which is in Cleveland County, and is in the South. It has a Number Planning Area (NPA - also known as an Area Code) of 405 and Network Numbering Exchange (NXX - also known as a prefix) of 321. It has an Operating Company Number (OCN) of 9533. A Common Language Location Identifier (CLLI) of NRMNOKMADS0. As well as a Local access and transport area (LATA) of 536. Zip code 73069 has a population of 23,912 as of the 2010 census.