Area Code 925: East Bay / Contra Costa

Area code 925 is in East Bay / Contra Costa, California. Numbers that start with 925 are based in Concord, Walnut Creek, Pleasanton.

Area code 925 covers East Bay / Contra Costa in California. The primary cities served include Concord, Walnut Creek, Pleasanton.

Area code 925 is primarily associated with Concord, along with Walnut Creek, Pleasanton. It serves the broader East Bay / Contra Costa area.

Area code 925 is in California (CA). California has 35 area codes in total.

Area code 925 operates in the Pacific Time Zone. Keep this in mind when scheduling calls with contacts in the East Bay / Contra Costa area.

No, area code 925 is the primary area code for East Bay / Contra Costa in California. It is not an overlay code.

For calls from outside California, always dial the full 10-digit number. For local calls within California, requirements may vary by carrier, check with your provider.

No, area code 925 is a local geographic area code, not a toll-free number. Standard call charges apply based on your carrier plan. Toll-free area codes include 800, 833, 844, 855, 866, 877, and 888.

Businesses can get a local 925 phone number through Convirza's call tracking platform. A 925 number lets you track inbound calls from East Bay / Contra Costa, measure marketing ROI, and analyze conversation data to improve sales performance. Get started with $20 in credits, no credit card required.