Boost Your Business with a 331 Area Code Virtual Phone Number in Illinois

Strengthen your business presence in Illinois communities by using a 331 area code number through Dialaxy. Whether you’re based in Naperville, Aurora, or surrounding areas, using a 331 number helps establish your local presence, increasing trust and credibility among customers.

Where is the 331 area code?

The 331 area code is basically located in Illinois, United States. It covers the northwestern part of Illinois and serves the western suburbs of Chicago, including cities like Aurora, Wheaton, Chicago, Bolingbrook, Naperville, and Elmhurst. This region serves 5 counties: Will, Cook, Kendall, Kane, and Dupage.

331 area code is an overlay of the 630 area code due to the rapid population growth and increased phone number demand, as area code 630 was closer to running out of numbers. The area code 331 covers 2.2 million, and the major city is Aurora.

Some of the nearby local area codes are 773 (Chicago, IL), 309 (Peoris, IL), 815 (Rockford, IL), 224 (Elgin, IL), 708 (Cicero, IL)

United States (+1)

Search Criteria

+1 331

Numbers

Location

+1 331 564 0025

Local

Aurora, Illinois

+1 331 111 5451

Local

Wheaton, Illinois

+1 331 254 3642

Local

West Chicago, Illinois

+1 331 125 3647

Local

Bolingbrook, Illinois

+1 331 145 3645

Local

Naperville, Illinois

Country	USA
State	Illinois
Major Cities	Aurora
Time Zone	Central Standard Time (UTC-6:00) or Central Daylight Saving Time (UTC-5:00)
Telephone Number Format	+1 (331)-XXX-XXXX
Example of 331 phone number	+1 (331)-321-4321
Zip Code	60103 to 60599

How to get a 331 Area Code Phone Number?

You can purchase a 331 area code phone number from a VoIP service provider like Dialaxy. You can follow these steps.

Sign up via the official Dialaxy website or mobile app.

Login with the correct credentials to access the dashboard.

Click the “My Number” option under the “Portal” menu.

Select the “Buy Number” option.

Choose “US” as the country and select the desired 331 area code from the list.

Complete the payment process and provide any necessary documentation, if needed.

How does a 331 business Phone Number work?

The 331 area code phone number works like any other regular phone number in the United States. The NANP assigns continents into multiple area codes called Numbering Plan Areas (NPAs). Callers must dial the 10-digit number, including the 331 area code while calling.

The 331 area code is assigned to a specific region, covering Aurora and surrounding areas. Then, it helps identify the caller’s or business’ location. The call is routed through the Public Switched Telephone Network or VoIP services to reach the receiver’s end.

For example, if you want to reach Ameritech Illinois, you can dial 1-331-321-4321, where “1” is the country code for the USA and “331” is the area code. “321” is an exchange code routing to a specific carrier, and “4321” is the subscriber number identifying the individual.

Dialaxy’s basic plan is budget-friendly, even for small businesses, starting at just $10 per user per month.

Who’s doing business in the 331 area code?

The 331 area code region serves a diverse range of industries, from healthcare and education to technology and manufacturing. It is home to thriving businesses that drive Illinois’ economy forward.

Healthcare

Edward Hospital, Advocate Good Samaritan Hospital, Rush Copley Medical Center

Educational Institutions

North Central College, Waubonsee Community College, Illinois Math and Science Academy

Real Estate

Coldwell Banker Real Estate, John Greene Realtor, Keller Williams Realty

Food & Beverage

Portillo's, Oberweis Dairy, Lou Malnati’s Pizzeria

Tourism & Hospitality

Hotel Arista, Paramount Theatre, Morton Arboretum

Other Businesses

Penske Logistics, Bill Jacobs, Volkswagen

Why Does Your Business Need a 331 Area Code Number?

Using a 331 number can position your business as local, fostering trust and building stronger relationships with your customers in Illinois. Establishing a Naperville-based or Aurora-based phone number with Dialaxy enhances your brand’s local credibility.

Dialaxy gives business owners the flexibility to choose where and how they operate while continuing to serve local clients. Your preferred device is prepared to make calls using your new work phone number, while personal numbers stay confidential. Keep your balance at work, but turn off notifications after hours.

Dialaxy offers budget-friendly plans that make obtaining a 331 number easy for small businesses. There are no hidden fees or setup charges, and plans start at just $19.99 per user per month.

You don’t need special hardware to use a 331 area code number. The Dialaxy app allows you to use your number on devices you already own, including mobile phones, laptops, PCs, and tablets.

Dialaxy’s VoIP services allow your team to work from anywhere while maintaining a local presence in Washington. With a 331 area code, your team can connect with customers across the region effortlessly.

Dialaxy integrates with CRM tools and business applications, making call management easy. Track interactions, manage customer records, and enhance service quality with every call.