About this number
(408) 312-1231 is a landline based telephone number operated by Xo California, Inc. and is located in zip code 94539 in the city of Fremont, California, which is in Alameda County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 408, a Network Numbering Exchange (NXX - also known as a prefix) of 312 and a subscriber number of 1231. It has an Operating Company Number (OCN) of 7262. A Common Language Location Identifier (CLLI) of FRMTCAEDDS0. As well as a Local access and transport area (LATA) of 722. It was first assigned for usage on 04/07/2006. Zip code 94539 has a population of 50,031 as of the 2010 census.