phonenumbers
California Area Codes
LOGIN
LOGIN

Where Is 669 Area Code?

Search For a Phone Number
To look up the owner
SEARCH
Results include when available
Owner's Name
Owner’s Email Addresses
Relatives & Associates
Location(s)
Social Profiles
Images & Videos
Social Profiles
Images & Videos
Database Updated: July 10, 2025
California Phone Number Lookups
Where Is 669 Area Code?

Where is Area Code 669?

Area Code 669 is designated for use in the western portion of California’s Santa Clara County, as well as certain neighboring areas. It is an overlay to the widely recognized 408 area code and serves a range of urban, suburban, and rural communities in the Silicon Valley region. Major localities covered by 669 include:

  • San Jose
  • Campbell
  • Gilroy
  • Los Gatos
  • Morgan Hill
  • Saratoga

This region is known for its robust technology sector, commercial centers, and residential neighborhoods. For further details on area code assignments and overlays, refer to the California Public Utilities Commission requirements. The California Public Utilities Commission (CPUC) is headquartered at 505 Van Ness Avenue, San Francisco, CA 94102.

What Time Zone Is 669 Area Code in the USA?

Residents and businesses within the 669 area code fall under the Pacific Time Zone (PT). This region observes Daylight Saving Time (DST) between mid-March and early November annually. During DST, clocks move forward by one hour to provide extended daylight in the evenings. Coordinated statewide regulations are overseen by agencies such as the Federal Communications Commission guidelines and, at times, local and state governments. The Federal Communications Commission is located at 45 L Street NE, Washington, DC 20554.

History of the 669 Area Code

The 669 area code was implemented in 2012 as an overlay to the 408 area code. Its creation was prompted by an ongoing shortage of available telephone numbers in this dynamic and heavily populated region of Silicon Valley. Key historical milestones include:

  • The initial use of the 408 area code dates back to 1959, when the region was experiencing growth in both population and technological ventures.
  • Increased demand for new telephone lines due to the expansion of tech-related industries and residential growth led the CPUC to authorize a new overlay area code.
  • In 2012, 669 was introduced to allow continuous availability of phone numbers in the same geographic region without requiring existing 408 customers to change their numbers.

The decision to adopt an overlay rather than a geographic split aimed to minimize disruption for businesses and residents. This approach eliminated the need for existing phone subscribers to change their telephone numbers and allowed existing area code 408 and the new area code 669 to share the same geographic boundaries.

How Many People Use the 669 Area Code?

While exact figures may vary, it is estimated that area code 669 covers a significant portion of Santa Clara County’s population. According to recent U.S. Census data, Santa Clara County alone is home to over 1.9 million people. A substantial subset of these residents and businesses rely on the 669 overlay, particularly when new telephone lines are activated. Official assessments from the CPUC and the telecommunications regulatory policies indicate that this area code continues to see consistent growth due to ongoing commercial and residential developments.

Users of the 669 area code come from diverse backgrounds, including:

  • Large-scale technology corporations based in or near Silicon Valley.
  • Mid-sized businesses operating in retail, finance, and professional services.
  • Residential customers requiring new lines for home offices, mobile services, or personal communications.

Is the 669 Area Code Toll-Free?

Area Code 669 is not designated as a toll-free number range. Instead, it functions as a standard geographic area code with local calling rates determined by individual telecommunications providers. Subscribers should be aware of the following points:

  • Calls within the area code are typically considered local if made within the immediate region, but long-distance fees may apply when calling outside of the local coverage area.
  • Numerous telephone carriers and mobile providers offer calling plans that incorporate in-state and nationwide minutes, which can help minimize or eliminate long-distance charges.
  • Toll-free service in the United States is generally restricted to specific area codes, including 800, 888, 877, 866, 855, 844, and 833, all of which differ from 669.

For any questions regarding local calling plans, residents and businesses can contact the California Public Utilities Commission at 505 Van Ness Avenue, San Francisco, CA 94102 or consult FCC resources at 45 L Street NE, Washington, DC 20554.


 

Cities in 669 Area Code
  • San Jose
  • Sunnyvale
  • Santa Clara
  • Milpitas
  • Cupertino
  • Gilroy
  • Campbell
  • Morgan Hill
  • Saratoga
  • Los Gatos
  • Alum Rock
  • East Foothills
  • San Martin
  • Palo Alto
  • Burbank
  • Monte Sereno
  • Cambrian Park
  • Lexington Hills
  • Fruitdale
Counties in 669 Area Code
  • Santa Clara
  • Santa Cruz
Prefix Codes for Area Code 669
  • (669) 200
  • (669) 221
  • (669) 222
  • (669) 223
  • (669) 224
  • (669) 225
  • (669) 226
  • (669) 227
  • (669) 228
  • (669) 231
  • (669) 232
  • (669) 233
  • (669) 234
  • (669) 235
  • (669) 236
  • (669) 237
  • (669) 242
  • (669) 253
  • (669) 300
  • (669) 333
  • (669) 342
  • (669) 400
  • (669) 444
  • (669) 500
  • (669) 600
  • (669) 666
  • (669) 721
  • (669) 777
  • (669) 800
  • (669) 888
  • (669) 900
  • (669) 999
California Area Codes
  • 209
  • 213
  • 279
  • 310
  • 323
  • 341
  • 350
  • 369
  • 408
  • 415
  • 424
  • 442
  • 510
  • 530
  • 559
  • 562
  • 619
  • 626
  • 628
  • 650
  • 657
  • 661
  • 669
  • 707
  • 714
  • 747
  • 760
  • 805
  • 818
  • 820
  • 831
  • 840
  • 858
  • 909
  • 916
  • 925
  • 949
  • 951
California Phone Numbers
HomeFAQPrivacyTerms of UseYour Privacy ChoicesAccessibility Statement
Do Not Sell / Share My Personal Information