331 Area Code

Get 331 Area Code Numbers for Local Presence in Aurora, Illinois

Q: Is area code 331 toll-free?

No, the 331 phone area code is not toll-free, and you will have to pay according to the duration of your call.

Q: What is the area code overlay for the area code 331?

331 doesn’t have an overlay area code yet. However, it is the 630’s overlay.

Q: When did the 331 area code start?

The 331 area code started on October 7, 2007.

Buy a 331 area code number from Calilio and establish a local presence in Aurora’s dynamic market. Leverage advanced features to enhance business communication and tap into the thriving community of Illinois.

Calilio Mobile app interface for dialing 331 area code numbers

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Discover Calilio’s range of 331 virtual phone numbers to build a professional image in the Aurora area.

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Area Code 331 Location

The 331 area code is in northeastern Illinois, serving Aurora. It is the state’s second-largest city, with a population of 117,563.

331 also encompasses several other notable cities and regions, including Naperville, Oswego, Bolingbrook, and Wheaton. Furthermore, the area code 331 covers four counties, including DuPage, Kane, Kendall, and Will.

All the territories using 331 phone numbers fall under the Central Time Zone (CT). During Standard Time, it operates at UTC-6, and during Daylight Saving Time, it shifts to UTC-5.

Cities	Total Population	County
Aurora	117,563	Kane
Naperville	150,245	DuPage
Boiling Brook	74,088	Will
Wheaton	52,055	DuPage
Oswego	37,074	Kendall
Downers Grove	49,706	DuPage
Elmhurst	45,336	DuPage
Lombard	43,779	DuPage
Carol Stream	38,966	DuPage
Yorkville	24,693	Cook
Hinsdale	17,297	DuPage
Hanover Park	36,165	DuPage
Addison	35,167	DuPage
Glendale Heights	32,409	DuPage
St. Charles	32,654	Kane

History of the Area Code 331

The 331 area code came into operation on October 7, 2007, as the 333rd area code in the US and the 12th area code in the state. It was created as an overlay for the existing 630 area code to address the increasing demand for phone numbers in the region.

Illinois now has 17 area codes in total. They are 217, 309, 312, 331, 447, 464, 618, 630, 708, 730, 773, 779, 815, 847, 861, 872, and 224.

Exploring 331 Area Code Region: Business Scenario and Outlook

Aurora, the second-largest city in Illinois, is a vibrant hub for business activity. Known as the “City of Lights,” it is bolstered by a diverse collection of industries. Major companies employ workforces across industries, including professional, scientific, technical services, manufacturing, education, and healthcare.

In addition, Aurora is home to several top businesses across different sectors, such as Rush Copley Medical Center, Caterpillar Inc., Aurora University, Quality Logo Products, Bureau Gravity, HR Path, and others.

Moreover, the City of Lights ranks 21st in “Best-Run Cities in America,” according to a study conducted by WalletHub. In 2024, the sales tax rate in Aurora, Illinois, has been set at 8.25%, which combines the state rate of 6.25% with local rates. This rate remains unchanged from 2023.

As per the Illinois government’s 2024 report, the unemployment rate in Aurora City, which uses the area code 331, is 6.1%. Nonetheless, the average annual household income in the city is $112,069, while the median household income is $85,943 per year, which is higher than that of other cities. Looking at that, it is clear that the people residing there have a significant purchasing capacity.

Unlock Business Opportunities in Aurora with a 331 Phone Number

Numbers with the Area Code 331: Communication Tool for Business Growth

Call Analytics

Utilize insights of detailed call analytics to drive your business strategies.

Click to Call

Enable instant calls from the website with a single click and a seamless conference call.

Real-Time Dashboard

Track your call and team members performance and get fast insights with real-time monitoring.

Call recordings and Storage

Securely record and store all incoming and outgoing calls for future access.

Why Does Your Firm Need a 331 Area Code Number?

A 331 area code number is essential for firms as it enhances local SEO and improves the brand image, making it easier for clients to reach out and engage in Illinois.

Increases Customer Reach

Incorporating the 331 phone area code in marketing boosts brand visibility in the region. It makes it easier for local customers to contact your organization, leading to higher engagement.

Elevates Sales

Local SEO (Search Engine Optimization)

Improves Brand Image

How to Get a 331 Area Code Phone Number?

Effortlessly set up your own 331 phone number by following these straightforward steps.

Select VoIP plans from the available options.

Browse through the available 331 area code numbers and pick one.

Proceed to checkout and complete the payment.

After your number is activated, configure features in the Settings.

Port Your Local 331 Number to Calilio

Easily transfer your existing 331 phone number to Calilio and unlock powerful communication tools for your enterprise.

Reasons to Choose Calilio for 331 Phone Area Code

Choosing Calilio for a 331 area code phone number is a smart choice for cost-effective communication and easy management with customizable features and 24/7 support.

Easy Setup and Management

With a quick and easy setup process, users can quickly obtain their desiredl number without hassle. Plus, a friendly interface smooths communication and enhances customer service.

Cost-Effective Communication

Calilio's budget-friendly and flexible pricing plans make it a reliable option for organizations aiming to achieve efficient communication solutions.

24/7 Customer Service

We provide prompt assistance to address any queries or issues, allowing firms to maintain smooth operations without interruptions round-the-clock.

Customizable Features

We offer a range of customizable features that allow companies to tailor their communication solutions to meet specific needs.

CRM Integration for Workflow Automation

Integrating Calilio’s AI-powered call center software with CRM tools automates workflows and syncs customer data in real-time.

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Automation

LeadHeed

CRM

HubSpot

CRM

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Mailchimp

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Helpdesk

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331 Nearby Area Codes

Location	Area Codes
Elgin	224,847
Peoria	309,861
Cicero	464,708
Chicago	773
Rockford	779,815
Chicago	872

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