Area code 650 is the number code for San Francisco and San Mateo in California assigned by the North American numbering plan.
History:
In 1997 this area code was formed after its split from area code 415. People needed to dial a ten-digit code before using this area code.
Location:
The area code supplies the state of California and the major city under this area code in the San Francisco bay area and San Mateo.

Timezone:
The Pacific time zone serves this area code and we also call the Pacific time zone the America/Los Angeles time zone.
Countries included in area code:
COUNTRY | TOTAL POPULATION | % OF 650 | % OF COUNTRY |
San Mateo | 781,451 | 91% | 98% |
Santa Clara | 1,781,642 | 9% | 6% |
Cities included in area code
CITY | TOTAL POPULATION | % OF 650 | % OF CITY |
San Mateo | 97,207 | 2% | 100% |
Daly city | 101,123 | 1% | 100% |
Redwood city | 76,815 | 4% | 100% |
Mountain view | 74,066 | 2% | 100% |
South san Francisco | 63,632 | 4% | 100% |
Palo alto | 64,403 | 3% | 100% |
San Bruno | 41,114 | 1% | 100% |
Pacifica | 37,234 | 2% | 100% |
Menlo park | 32,026 | 2% | 100% |
Foster city | 30,567 | 2% | 100% |
Burlingame | ,28,806 | 1% | 100% |
Los altos | 28,976 | 1% | 100% |
San Carlos | 28,406 | 1% | 100% |
East Palo alto | 28,155 | 0% | 100% |
Belmont | 25,835 | 1% | 100% |
Millbrae | 21,532 | 0% | 100% |
North fair oaks | 14,687 | 0% | 100% |
Stanford | 13,809 | 0% | 100% |
Half-moon bay | 11,324 | 1% | 100% |
Hillsborough | 10,825 | 1% | 100% |
Los altos hills | 7,922 | 1% | 100% |
Atherton | 6,914 | 1% | 100% |
El Granada | 5,467 | 1% | 100% |
Woodside | 5,287 | 1% | 100% |
Portal valley | 4,353 | 1% | 100% |
Emerald lake hills | 4,278 | 0% | 100% |
Bradmoor | 4,176 | 0% | 100% |
Highlands Baywood park | 4,075 | 0% | 100% |
West mento park | 3,659 | 0% | 100% |
Lakota | 3,261 | 0% | 100% |
Moss beach | 3,103 | 0% | 100% |
Cupertino | 58,302 | 0% | 100% |
Montara | 2,909 | 0% | 100% |
Colma | 1,792 | 0% | 100% |
Brisbane | 1,426 | 1% | 100% |
Ladera | 928 | 0% | 100% |
La honda | 643 | 1% | 100% |
Pescadero | 113 | 1% | 100% |
Loma mar | 121 | 0% | 100% |
Frequently asked question:
Where did 650 originate?
The number code for San Francisco and San Mateo in California is assigned by the North American numbering plan.
What location does area code 650 cover?
The area code supplies the state of California and the major city under this area code in the San Francisco bay area and San Mateo.
What time zone does area code 650 cover?
The Pacific time zone serves this area code and we also call the Pacific time zone the America/Los Angeles time zone.
Conclusion:
Area code 650 is the number code for San Francisco and San Mateo in California assigned by the North American numbering plan. In 1997 this area code was formed after its split from area code 415. People needed to dial a ten-digit code before using this area code. The area code supplies the state of California and the major city under this area code in San Mateo. The Pacific time zone serves this area code and we also call the pacific time zone the America/Los Angeles time zone.
For more, you may also read: area code 628