Area Code 510 Phone Number
for Your Business
Get a local 510 number for your business in Oakland, CA. Cloud VoIP with SMS, an auto attendant (IVR), and more — starting at $30/ext/mo. No contracts.
What Is Area Code 510?
Area code 510 is a North American telephone area code serving Oakland, California. It has been in service since September 2, 1991 and operates on Pacific Time. It is part of the 341/510 overlay complex. Businesses operating in the 510 area code region use local numbers to build trust with customers, improve answer rates, and establish a professional local presence.
With Zonitel, you can get a new 510 area code number or port your existing one with guided onboarding — no hardware required. Your team can make and receive calls from any device using the Zonitel mobile app or web portal.
Area Code 510 at a Glance
- Region
- Oakland / East Bay, California
- In service
- Since September 2, 1991
- Time zone
- Pacific Time
- Overlay
- Shares its territory with 341; local calls use 10-digit dialing
- History
- Created on September 2, 1991 from area code 415
- Later split off
- 925 was created from 510's territory
- Telemarketing hours
- 8 a.m.–9 p.m. Pacific Time for residential numbers (TCPA, 47 CFR 64.1200(c)(1))
Why Your Business Needs a 510 Local Number
A local number tells customers you're part of the community. People in Oakland are more likely to pick up a call from a 510 number they recognize than from an unfamiliar out-of-area number.
Everything Included With Your 510 Number
Zonitel is not just a phone number — it's a complete cloud business phone system. Every plan includes:
Frequently Asked Questions About Area Code 510
What cities use area code 510?
Area code 510 serves the Oakland / East Bay area of California. Cities in the 510 region include Oakland, CA.
Is area code 510 an overlay?
Yes. 510 is part of the 341/510 overlay, so new numbers in this region can come from any of those area codes, and local calls require 10-digit dialing.
What time zone is area code 510 in?
Area code 510 is in Pacific Time. Telemarketing calls to residential 510 numbers are limited to 8 a.m.–9 p.m. Pacific Time under the TCPA (47 CFR 64.1200(c)(1)).
Can I get a 510 number for my business without moving there?
Yes. With Zonitel's cloud VoIP, you can get a 510 area code number regardless of where your business is physically located. This lets you establish a local presence in Oakland without a physical office.
Can I keep my existing 510 number and switch to Zonitel?
Yes. Number porting is free. Porting commonly takes 5–10 business days depending on your current carrier, and your old service stays active until the coordinated cutover.
How much does a 510 business phone number cost?
Zonitel plans start at $30/extension/month plus tax, with no setup fees and no contracts. Your 510 local number is included in the plan.
Get Your 510 Area Code Number Today
30-day free trial. No annual contract required. Guided onboarding.