Area code 925 serves the inland East Bay region of the San Francisco Bay Area in Northern California, covering cities such as Walnut Creek, Concord, Pleasanton, Livermore, and Antioch. Known for its blend of suburban affluence and proximity to Silicon Valley, the 925 area offers an attractive balance of professional opportunity and high quality of life. Walnut Creek and Pleasanton are particularly popular with commuters, offering access to BART and major highways while retaining a slower pace compared to the urban centers across the bay. The region is home to a growing number of tech startups, wine producers in Livermore Valley, and major healthcare and education institutions. The 925 code was created in 1998 when it split from 510, reflecting the East Bay’s rapid population growth. The area’s economic engine includes sectors like biotech, education, retail, and real estate, and residents enjoy amenities such as parks, shopping centers, and top-rated schools. With scenic hills, vibrant communities, and strong business infrastructure, the 925 area code represents both East Bay identity and broader Bay Area innovation.