About this number
(559) 257 is a landline based telephone number operated by Pac - West Telecomm, Inc. and is located in zip code 93721 in the city of Fresno, California, which is in Fresno County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 559 and Network Numbering Exchange (NXX - also known as a prefix) of 257. It has an Operating Company Number (OCN) of 7379. A Common Language Location Identifier (CLLI) of FRSNCA011KD. As well as a Local access and transport area (LATA) of 728. Zip code 93721 has a population of 6,959 as of the 2010 census.