About this number
(510) 253 is a landline based telephone number operated by Tw Telecom Of California Lp - and is located in zip code 94597 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 510 and Network Numbering Exchange (NXX - also known as a prefix) of 253. It has an Operating Company Number (OCN) of 7718. A Common Language Location Identifier (CLLI) of WNCKCAGEDS0. As well as a Local access and transport area (LATA) of 722. Zip code 94597 has a population of 20,277 as of the 2010 census.