About this number
(858) 859 is a landline based telephone number operated by McI Worldcom Communications, I and is located in zip code 92123 in the city of San Diego, California, which is in San Diego County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 858 and Network Numbering Exchange (NXX - also known as a prefix) of 859. It has an Operating Company Number (OCN) of 7240. A Common Language Location Identifier (CLLI) of SNDICAETDS0. As well as a Local access and transport area (LATA) of 732. Zip code 92123 has a population of 26,823 as of the 2010 census.