The area code 669 is located in San Jose, California.
Area code 669 serves San Jose and much of Santa Clara County in Northern California, right in the heart of Silicon Valley. It’s an overlay of 408, meaning both area codes cover the same region and support the area’s high demand for new phone numbers. The 669 area code was established in 2012 to expand numbering capacity as mobile, VoIP, and tech-driven growth surged. Local calls within the 408/669 region use 10‑digit dialing.
Major cities and communities covered by area code 669 include:
This area code reaches many famous landmarks and tech hubs, such as Levi’s Stadium in Santa Clara, Apple Park in Cupertino, San Jose’s The Tech Interactive, SAP Center, and the Winchester Mystery House, plus California’s Great America and San José State University. The 669/408 overlay sits entirely in the Pacific Time Zone. Existing 408 numbers did not change when 669 launched; new numbers may be assigned either code within the same geographic footprint.
In service since 2012 as an overlay to 408; 10‑digit dialing required. Source: NANPA and California Public Utilities Commission (CPUC).