About this number
(925) 256 is a landline based telephone number operated by Pacific Bell and is located in zip code 94596 in the city of Walnut Creek, California, which is in Contra Costa County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 925 and Network Numbering Exchange (NXX - also known as a prefix) of 256. It has an Operating Company Number (OCN) of 9740. A Common Language Location Identifier (CLLI) of WNCKCA11DS1. As well as a Local access and transport area (LATA) of 722. Zip code 94596 has a population of 20,037 as of the 2010 census.