Where is Area Code 925?
Area code 925 serves the eastern portion of the San Francisco Bay Area in California. It primarily covers communities within two counties: Contra Costa County and Alameda County. This region features a diverse mix of suburban cities, unincorporated areas, and small towns. Below is a list of prominent locations within the 925 area code:
- Concord
- Walnut Creek
- Pleasanton
- Livermore
- Antioch
- San Ramon
- Danville
- Brentwood
Each of these cities is part of a thriving economic and cultural landscape. Industries ranging from healthcare to technology maintain a robust presence throughout the region, supported by infrastructure overseen by municipal governments and state agencies. For further information on California’s telephone services and service policies, consult the CPUC guidelines provided by the California Public Utilities Commission, headquartered at 505 Van Ness Avenue, San Francisco, CA 94102.
What Time Zone Is 925 Area Code in the USA?
Area code 925 falls under the Pacific Time Zone (PT). This aligns it with major California cities, including nearby San Francisco and Oakland. Like the rest of the state, this region observes Daylight Saving Time (DST). As such, clocks move forward by one hour in spring and revert to standard time in fall.
The observance of DST is coordinated by federal and state agencies. For further details and regulations on telecommunication standards across the nation, refer to federal resources on phone numbering provided by the Federal Communications Commission, located at 45 L Street NE, Washington, DC 20554.
History of the 925 Area Code
The 925 area code was officially created on March 14, 1998, following a split from area code 510. Prior to this development, a single area code covered a large segment of the East Bay region, which included both urban centers and rapidly expanding suburban areas. The increase in demand for new telephone lines, spurred by population growth and emerging communication technologies, necessitated the creation of an additional area code. Key events include:
- 1990s: Substantial growth in the East Bay led to a surge in requests for residential and business phone lines.
- Early 1998: California Public Utilities Commission (CPUC) approved plans to divide the existing service area.
- March 14, 1998: Official introduction of area code 925 to manage new number assignments and maintain service reliability.
Since its inception, the 925 area code has remained an essential part of the North American Numbering Plan (NANP) and has not undergone further splits or overlays. Growth in mobile phone usage has been balanced by emerging technologies such as Voice over Internet Protocol (VoIP), contributing to the overall stability of area code 925.
How Many People Use the 925 Area Code?
The 925 area code covers a populous and economically active segment of California’s East Bay. Estimates suggest that area code 925 serves over one million residents. Additionally, thousands of businesses and government entities operate within its boundaries. Because the region continues to grow in both population and commercial activity, the exact number of assigned phone numbers evolves over time.
Local authorities coordinate administrative efforts with the California Public Utilities Commission to track the demand for new lines or possible expansions. These measures ensure that new residents and businesses can receive telephone numbers without interruption or overload on existing systems.
Is the 925 Area Code Toll-Free?
Area code 925 is not a toll-free number range. It is classified as a geographic code assigned to specific communities in Contra Costa and Alameda counties. Calls placed within the 925 region may be local or subject to standard calling rates, depending on the caller’s service plan and the distance involved. There are no special toll-free rules for this area code.
Toll-free area codes in the United States typically begin with prefixes such as 800, 888, 877, 866, 855, 844, or 833. These toll-free numbers allow the calling party to reach businesses or services at no extra charge, with the recipient typically covering the per-minute costs. By contrast, geographic numbers like 925 follow standard billing practices determined by individual providers.