About this number
(925) 673-0020 is a landline based telephone number operated by Pacific Bell and is located in zip code 94517 in the city of Clayton, 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, a Network Numbering Exchange (NXX - also known as a prefix) of 673 and a subscriber number of 0020. It has an Operating Company Number (OCN) of 9740. A Common Language Location Identifier (CLLI) of CYTNCA11DS0. As well as a Local access and transport area (LATA) of 722. It was first assigned for usage on 01/01/1901. Zip code 94517 has a population of 12,385 as of the 2010 census.