What is an area code?

An area code is the three-digit prefix at the start of a North American phone number that identifies a specific geographic region — a city, metro area, or part of a state. In the number (212) 555-0100, the 212 is the area code for Manhattan in New York City.

How do I find the area code for a city?

Use the area code directory on this page: type a city, state, or three-digit code and the matching regions appear instantly. You can also browse the popular US area codes and the lookup-by-region sections below.

What is the difference between an area code and a country code?

A country code routes a call to a nation (for example +1 for the United States), while an area code routes it to a region within that nation. You dial the country code first when calling from abroad, then the area code, then the local number.

Can two cities share the same area code?

Yes. A single area code can cover several nearby cities or an entire metro region. As demand for numbers grows, regions are often split or given an additional overlay area code that serves the same geography.

What are toll-free area codes?

Toll-free numbers use special prefixes — 800, 833, 844, 855, 866, 877, and 888 — instead of a geographic area code. The business that owns the number pays for incoming calls, so they are free for the caller. They are popular for customer support and sales lines.

What state is area code 310 in?

Area code 310 is located in California (CA), in the West region of the United States. The capital of California is Sacramento.

What time zone is area code 310 in?

Area code 310 operates in the Pacific Time (PT). If you are calling from a different time zone, make sure to account for the time difference before reaching out during business hours.

How can I get a 310 area code phone number for my business?

You can get a 310 local phone number through letsdial in minutes. Choose the 310 area code, select a local number, and route calls to your team from one cloud dashboard — no hardware required.

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West

Area Code 310

Santa Monica, CA — California

Area code 310 serves Santa Monica and California. Get a local 310 number to build instant presence in this market.

Split from 213 in 1991 to serve the affluent west side of Los Angeles. Beverly Hills and Santa Monica anchored it.

Get a 310 number ← All area codes

+1 (310) XXX-XXXX

Santa Monica, CA

LIVE

Connecting…

ONHD Voice

18msLatency

99%Quality

End

State

California (CA)

Capital: Sacramento

Time Zone

Pacific Time (PT)

Region

West

US Census region

Code Type

Geographic

Original area code

Cities covered

Where does area code 310 cover?

Area code 310 serves communities across California. Cities below represent the primary coverage area per the NANP.

Santa Monica
Beverly Hills
Culver City
Hawthorne
West LA

About California

California phone number landscape

California holds more area codes than any other state, reflecting its massive economy — from San Francisco's tech epicenter and Los Angeles' entertainment industry to San Diego's biotech corridor.

Number format

+1(310)XXX-XXXX

When dialing from outside the US, prefix with +1. Within the US, dial all 10 digits including the area code.

Get a 310 number for your business

History of Area Code 310

Split from 213 in 1991 to serve the affluent west side of Los Angeles. Beverly Hills and Santa Monica anchored it.

For your business

Why get a 310 area code number?

A local 310 number gives your business a genuine connection to the California market — without the overhead of a physical location.

Local Market Access

Reach Santa Monica customers and businesses with a familiar local number. The Westside hosts 'Silicon Beach,' a dense tech and entertainment-startup cluster from Santa Monica to Culver City. Tech and media firms prize a 310 number for this Westside-prestige credibility.

Professional Credibility

A 310 number anchors your business in Santa Monica and California, giving clients and partners a recognizable local point of contact that builds immediate professional trust.

Higher Answer Rates

Local area codes are far less likely to be blocked. A 310 number keeps your outreach out of the spam folder.

Flexible Operations

Start with one 310 number and add more as you grow — all managed from a single letsdial dashboard.

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How to obtain a 310 phone number.

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Local advantage

Benefits of a local California number

A 310 area code tells California customers you're local and easy to reach.

Local 310 numbers get answered more often than toll-free or out-of-state calls.
Build local trust and brand recognition without a physical office.
Keep your personal number private with a dedicated 310 business line.

Why local numbers win

+34%Higher answer rate vs. toll-free

+27%More callbacks from local numbers

3.6×Faster trust building with local code

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Area code 310 FAQs

Frequently asked about 310

Area code 310 covers Santa Monica, Beverly Hills, Culver City, Hawthorne, West LA in California. It is the primary area code for this region.

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