Daly City, California

Where Is Area Code 650?

Area code 650 is in northern California. It serves most of San Mateo County and the northwestern part of Santa Clara County on the San Francisco Peninsula. Daly City is one of the cities in this area code.

Major cities and communities in area code 650 include Daly City, South San Francisco, San Mateo, Redwood City, Menlo Park, Palo Alto, Mountain View, Burlingame, San Bruno, Millbrae, Pacifica, Half Moon Bay, and Los Altos. The code covers a mix of coastal communities, suburban cities, and major job centers between San Francisco and San Jose.

The area includes notable places such as San Francisco International Airport, which is in San Mateo County, and Stanford University in Stanford. It also reaches the Pacific coast in places like Pacifica and Half Moon Bay. The region includes parts of Silicon Valley and the shoreline of the San Francisco Bay.

History of Area Code 650

Area code 650 was created on August 2, 1997. It was split from area code 415 as telephone demand grew on the San Francisco Peninsula and in nearby South Bay communities. The split gave peninsula communities a separate code from San Francisco.

Area code 650 later received an overlay. Area code 669 was added as an overlay in 2012 for parts of the broader South Bay region that had been tied to 650 before earlier boundary changes, but 650 itself is primarily known as a split from 415 and continues to serve peninsula communities. Growth in population, business activity, and telecommunications helped drive the need for new numbering resources in this part of California.

Key Facts About Area Code 650

• Area code 650 is in California.
• Daly City is one of the major cities in area code 650.
• Area code 650 is in the Pacific Time Zone.
• Area code 650 was created on August 2, 1997, in a split from area code 415.
• Area code 650 serves most of San Mateo County and part of northwestern Santa Clara County.
• Stanford University is in the 650 area code region, in Stanford near Palo Alto.
• San Francisco International Airport is located in San Mateo County within the 650 calling region.
• Area code 650 covers communities along both the San Francisco Bay and the Pacific Ocean.

Frequently Asked Questions

What state is area code 650 in?

Area code 650 is in California.

What major cities use area code 650?

Major cities in area code 650 include Daly City, South San Francisco, San Mateo, Redwood City, Palo Alto, Mountain View, Burlingame, San Bruno, Pacifica, and Menlo Park.

Is area code 650 a toll-free number?

No. Area code 650 is a geographic area code.