General Details about Prefix 669-777

State / Province / Territory : CA
Primary City : Sunnyvale
Please note that information shown about the location of the 669-777 area code and prefixes is an approximation. The reason is due to the number of local number portability rules (LNP), wireless devices and VoIP, the location may vary significantly in some cases. Phone numbers listed on this page typically originate from Sunnyvale CA.

669-777 Caller Map

Phone Number Ranges with a 669 Areacode & 777 Prefix