Area Code 510 — California
Area code 510 is located in California and operates on Pacific Time . The largest city served is Hayward .
Coverage Area
Area code 510 — CaliforniaArea Code Details
- Area Code
- 510
- State / Province
- California (CA)
- Country
- United States
- Time Zone
- Pacific Time Pacific Time
- Local Time Now
- —
- Status
- Active
- Code Type
- General Purpose Code
- In Service Since
- September 2, 1991
- Assigned
- April 25, 1990
- Population Served
- ~267,997 est.
- Overlay Complex
- 341/510
History & Relationships
Rate Centers & Exchanges
11 rate centers identified within area code 510
Other Area Codes in California
View all →Nearby Area Codes
Frequently Asked Questions About Area Code 510
What state is area code 510?
Area code 510 is located in California, United States.
Where is area code 510 from?
Area code 510 originates from California. It operates in the Pacific Time zone.
What time zone is area code 510?
Area code 510 falls within the Pacific Time zone (Pacific Time).
What cities are in area code 510?
Area code 510 serves cities including Hayward, Richmond, Oakland: Main-Piedmont DA, Fremont-Newark: Greenleaf DA, Oakland: Berkeley DA, Fremont-Newark: Main DA, Fremont-Newark: Oliver DA, El Sobrante-Pinole, and more.
Is a call from area code 510 a scam?
Area code 510 is a legitimate general purpose code area code serving California. Like any area code, individual numbers using 510 can be used for scam calls — always verify the specific number if you receive an unexpected or suspicious call.