Area codes 408 and 669 - Wikipedia Area code 408 was split from numbering plan area 415 in a flash-cut (without permissive dialing period) on March 1, 1959 The new numbering plan area included most of Santa Clara, Santa Cruz, Monterey and San Benito Counties
408 area code — information, time zone, map Find out where 408 area code zone from, which states, counties and cities it covers Get the most exact information on time zones here
408 Area Code - San Francisco, CA - image-maps. com Area code 408 serves San Francisco and 21+ cities in California Find the 408 area code location, time zone (PDT), zip codes, counties, population (2,018,329), demographics, and an interactive map