Area code 650

650 is an area code in these California areas:

Atherton Atherton Contract Branch Belmont Blossom Valley Brisbane Burlingame Castro Center Colma Daly City E Palo Alto East Palo Alto El Granada Emerald Hills Foster City Half Moon Bay Hillsborough La Honda Loma Mar Los Altos Los Altos Hills Menlo Park Menlo Pk Millbrae Moffett Field

Moffett Field Nas Montara Moss Beach Mountain View Mt View Pacifica Palo Alto Pescadero Portola Valley Postal Data Center Princeton By The Sea Redwood City San Bruno San Carlos San Gregorio San Mateo Sf International Service Ctr Sharp Park South San Francis South San Francisco Ssf Stanford West Menlo Park Woodside




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Map of California area codes in blue (and border states) with 650 in red

North American area code 650 is a California telephone area code which includes most of San Mateo County (except the northernmost portion) and the extreme northwestern portion of Santa Clara County including Palo Alto, Mountain View, and Los Altos.

The 650 area was created by a split from area code 415. A six month "permissive dialing" period when either area code would work began August 2, 1997. Mandatory dialing of the new area code started on January 31, 1998.

Contents 1 Cities in the 650 area code 1.1 San Mateo County 1.2 Santa Clara County 2 External links

Cities in the 650 area code

San Mateo County

• Atherton
• Belmont
• Broadmoor
• Burlingame
• Colma
• Daly City (small portion in 415)
• East Palo Alto
• El Granada
• Emerald Lake Hills
• Foster City
• Half Moon Bay
• Highlands-Baywood Park
• Hillsborough
• Kings Mountain
• La Honda
• Ladera
• Loma Mar
• Los Trancos Woods
• Menlo Park
• Middleton Tract
• Millbrae
• Montara
• Moss Beach
• North Fair Oaks
• Pacifica
• Pescadero
• Portola Valley
• Princeton-by-the-Sea
• Redwood City
• San Bruno
• San Carlos
• San Gregorio
• San Mateo
• Sky Londa
• South San Francisco
• West Menlo Park
• Woodside

Santa Clara County

• Los Altos
• Los Altos Hills
• Loyola
• Mountain View
• Palo Alto
• Stanford

External links

• NANPA Area Code Map of California
• List of exchanges from AreaCodeDownload.com, 650 Area Code

State of California Area Codes: 209, 213, 310, 323, 408, 415, 424, 510, 530, 559, 562, 619, 626, 650, 657, 661, 707, 714, 747, 760, 805, 818, 831, 858, 909, 916, 925, 949, 951
	North: 415
West: Pacific Ocean, 808	area code 650	East: 510
	South: 408, 831
State of Hawaii Area Code: 808

Coordinates: 37°30′N 122°18′W / 37.5°N 122.3°W / 37.5; -122.3

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