What area code covers Chicago neighborhoods?

The 773 area code covers Chicago's neighborhoods outside downtown, including Wicker Park, Lincoln Park, Logan Square, and the South Side. It has strong local identity and authenticity.

What are the suburban Chicago area codes?

Suburban Chicago uses 847 and 224 (North suburbs), 630 and 331 (West suburbs), and 708 and 464 (South suburbs). Many corporate headquarters are located in these suburban areas.

Which Chicago area code should I choose?

Choose 312 for downtown business credibility, especially in finance, law, and corporate settings. 773 works well for creative businesses and neighborhood-focused operations. Suburban codes match suburban office locations.

What timezone is Chicago?

Chicago operates on Central Time (CT), one hour behind New York and one hour ahead of Denver. This central position facilitates business with both coasts.

Chicago Phone Numbers

Get a Chicago, IL Phone Number

The heart of American business beats in the Midwest. Chicago's 312 area code signals Loop credibility for finance, law, and corporate headquarters, while 773 covers the diverse neighborhoods driving the city's creative economy. Phone2 helps you establish authentic Chicago presence in America's third-largest city.

Area Code

312

State

Population

2.7 million

Timezone

Central Time (CT)

All Area Codes

312 630 708 773 779 815 847 872

Last updated: October 17, 2025

Chicago, IL

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Business in Chicago

Chicago is a global financial center, corporate headquarters hub, and transportation nexus. The CME Group makes it the derivatives capital of the world, while O'Hare connects businesses to everywhere. Fortune 500 companies choose Chicago for central location, lower costs than coastal cities, and deep talent pools in finance, law, and engineering.

Why Choose Phone2 for Chicago?

A 312 number signals downtown Chicago business credibility, essential for finance, law, and corporate dealings. 773 covers the city's neighborhoods with strong local identity. Chicago's central timezone and business culture make it a hub for companies serving the entire US market.

Key Industries in Chicago

Financial Services & Trading

Chicago is the derivatives and futures capital of the world. CME Group, CBOE, and major trading firms cluster in the Loop. A 312 number is essential for credibility in this institutional trading community.

Corporate Headquarters

Boeing, McDonald's, United Airlines, and dozens of Fortune 500 companies are headquartered in Chicago. The city's central location and business infrastructure attract corporate HQs seeking national reach.

Professional Services

Major law firms, consulting companies, and accounting firms have significant Chicago presence. The Loop hosts regional and national offices serving Midwest clients and beyond.

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Frequently Asked Questions about Chicago

The 312 area code covers downtown Chicago (the Loop) and is the most prestigious for business. It's the original Chicago code and signals established business presence in the city's financial and corporate center.

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