925 Area Code
The 925 area code is a telephone area code in the state of California, USA. It was created on March 14, 1998, as a split from the 510 area code to better serve the growing population and businesses of the East Bay region of the San Francisco Bay Area. The 925 area code covers the inland portions of Alameda and Contra Costa counties, including cities such as Walnut Creek, Concord, Pleasanton, Livermore, Danville, San Ramon, and Antioch.
Understanding the 925 Area Code
The 925 area code serves a vibrant suburban and economic hub of the Bay Area. It includes the Tri-Valley region (Pleasanton, Dublin, Livermore) and central/eastern Contra Costa County. The area is known for its strong economy in sectors such as technology, healthcare, education, finance, and wine production. The region is also popular for its suburban lifestyle, excellent schools, and proximity to San Francisco, Oakland, and Silicon Valley.
925 Area Code Map and Location
The 925 area code map includes the following counties and communities in the East Bay:
- Contra Costa County (inland areas including Walnut Creek, Concord, San Ramon, Danville, Brentwood, Antioch, Pittsburg)
- Alameda County (inland Tri-Valley cities including Pleasanton, Livermore, Dublin, Sunol)
Major Cities and Communities in the 925 Area Code
- Walnut Creek
- Concord
- Pleasanton
- Livermore
- Danville
- San Ramon
- Antioch
- Brentwood
- Pittsburg
- Dublin
- Clayton
- Lafayette
- Moraga
- Orinda
ZIP Codes in the 925 Area Code
Common ZIP codes within the 925 area include:
- 94596 - Walnut Creek, CA
- 94518 - Concord, CA
- 94566 - Pleasanton, CA
- 94550 - Livermore, CA
- 94526 - Danville, CA
- 94583 - San Ramon, CA
- 94509 - Antioch, CA
- 94513 - Brentwood, CA
- 94565 - Pittsburg, CA
- 94568 - Dublin, CA
Time Zone
The 925 area code is located in the Pacific Time Zone (PT):
- Standard Time: UTC -8
- Daylight Saving Time: UTC -7
Dialing & Phone Service
- Overlay Code: None currently (925 stands alone)
- Local Dialing: 1 + 10-digit dialing required for all calls
- Long-Distance (U.S./Canada): 1 + 925 + 7-digit number
- International: +1 925 + local number
- Services: Landline, Mobile, VoIP, Business
What Area Code is 925? / Where is Area Code 925?
What area code is 925? � The 925 area code is a California telephone area code serving inland East Bay suburbs of the San Francisco Bay Area, including Walnut Creek, Pleasanton, Livermore, and Concord.
Where is area code 925 located? � The 925 area code is located in northern California, USA, covering inland Alameda and Contra Costa counties.
What�s area code 925? � It is the area code for the East Bay�s suburban communities, known for its thriving economy, excellent schools, wine country, and proximity to San Francisco and Silicon Valley.
Frequently Asked Questions (FAQ)
What is the 925 area code?
The 925 area code is a California telephone area code serving inland portions of Alameda and Contra Costa counties in the East Bay region of the San Francisco Bay Area.
When was the 925 area code created?
It was created on March 14, 1998, as a split from the 510 area code.
Where is area code 925 located?
It covers inland East Bay suburbs in Alameda and Contra Costa counties, including Walnut Creek, Concord, Pleasanton, Livermore, San Ramon, and Antioch.
Does 925 have an overlay code?
No. The 925 area code currently does not have an overlay.
What time zone is 925 in?
Pacific Time Zone (PT).
What major cities are in the 925 area code?
Major cities include Walnut Creek, Concord, Pleasanton, Livermore, Danville, San Ramon, Antioch, and Brentwood.
What is the 925 area code known for?
It�s known for suburban living, the Tri-Valley wine country, strong school districts, tech and healthcare hubs, and proximity to Silicon Valley and San Francisco.
What universities are in the 925 area code?
The area includes California State University East Bay (Concord campus), Saint Mary�s College (Moraga), and Las Positas College (Livermore).
