Area Code 669
Area Code 669 is in California
(310 and 424) - (341 and 510)
(415 and 628) - (408 and 669
(714 and 657) - (760 and 442)
(818 and 747) - (820 and 805)
(916 and 279)
Area Code 669 History:
Area code 669 was officially put into service. Area code 669 is an overlay of area code 408.
Effective April 21, 2012 permissive 10 digit dialing was implemented. On October 20, 2012 mandatory 10 digit dialing became required.
Ten digit dialing (area code + seven digit number) is necessary in the 408/669 overlay because two different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.
Counties in California within area code 408 include:
Santa Clara County and Santa Cruz County.
Major cities or places in California within area code 408 include:
Area codes 408 and 669 serve most of Santa Clara County including the larger cities and communities of Campbell, Gilroy, Los Gatos, Milpitas, Morgan Hill, San Jose, Santa Clara, Saratoga and Sunnyvale in addition to many smaller communities within the area code 408 and 669 overlay service area.