408
Covers southern San Francisco Bay Area, California
In service since 1959
Split from area code 415
Overlay with 669
City facts
Santa Clara area codes
Area codes for southern San Francisco Bay Area, California: history, overlays and how to dial.
408669
Santa Clara uses area codes 408 and 669. Because more than one area code serves the same area, local calls need all ten digits.
About these area codes
669
Covers southern San Francisco Bay Area, California
In service since 2012
Overlay with 408
How to call a number in Santa Clara
Inside the US
1 (408) 555-0123Dial 1, the area code, then the seven-digit number.Local call
(408) 555-0123Overlay area: always include the area code.From outside the US
+1 408 555 0123Use your country's exit code or +, then 1 for the US.Santa Clara is on Pacific Time (PT); check the time before calling from another zone.
Other cities that share these codes
Nearby area codes
| Area code | Used in | Distance |
|---|---|---|
| 650 | Sunnyvale | 4 mi |
| 925 | Pleasanton | 22 mi |
| 510 | Richmond | 45 mi |
| 341 | Richmond | 45 mi |
| 831 | Salinas | 50 mi |
| 707 | Vallejo | 54 mi |
| 369 | Vallejo | 54 mi |
| 209 | Stockton | 56 mi |
Santa Clara quick facts
Santa Clara was incorporated on July 5, 1852. It is named for Saint Clare of Assisi.
Incorporated1852July 5, 1852
CountySanta Clara CountyCalifornia
Area codes408, 669Population129,239Census ACS estimateZIP codes495050, 95051, 95053…Elevation72 ft22 m
Time zonePacific TimePT
Dates, namesake and elevation from Wikipedia: Santa Clara, California and Wikidata (checked 2026-11-08); population and ZIP codes from the U.S. Census Bureau.
Questions
What area code is Santa Clara?
Santa Clara uses area codes 408 and 669. Because more than one area code serves the same area, local calls need all ten digits.
When did area code 408 start?
Area code 408 dates from 1959, when it was split from area code 415.
When did area code 669 start?
Area code 669 dates from 2012.
Do I need to dial the area code for local calls in Santa Clara?
Yes. 408 and 669 share the same area as an overlay, so every local call needs the area code plus the seven-digit number (ten digits).
What time zone is area code 408 in?
Santa Clara is on Pacific Time (PT).
What other cities use area code 408?
Other cities in this network that share 408 and 669 include Sunnyvale.
Sources: Area codes 408 and 669, Area codes 408 and 669 (Wikipedia) and Wikidata, checked 2026-11-08. Numbering plans change; the North American Numbering Plan Administrator is the official record.