About this number
(415) 388 is a landline based telephone number operated by Pacific Bell and is located in zip code 94941 in the city of Mill Valley, California, which is in Marin County, and is in the West. It has a Number Planning Area (NPA - also known as an Area Code) of 415 and Network Numbering Exchange (NXX - also known as a prefix) of 388. It has an Operating Company Number (OCN) of 9740. A Common Language Location Identifier (CLLI) of MLVYCA01DS0. As well as a Local access and transport area (LATA) of 722. Zip code 94941 has a population of 30,496 as of the 2010 census.