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Search 815 Area Code Virtual Phone Numbers
Explore Calilio’s available virtual 815 phone numbers. Select one and tap into the flourishing region of Rockford.
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Where Is Area Code 815’s Location?
815 area code serves the northern part of Illinois except for the Chicago metro area. It covers Rockford, Joliet, DeKalb, Crystal Lake, Romeoville, Belvidere, Woodstock, and Ottawa. Its main metropolitan area is Rockford, the fifth-most populated city in Illinois, with 146,713 residents.
This area code covers 20 counties, including Will, Winnebago, McHenry, LaSalle, Kankakee, DeKalb, Boone, Ogle, Grundy, and Whiteside. All of these counties follow the Central Time Zone, which is usually six hours behind UTC/GMT.
Cities | Total Population | County |
Rockford | 146,713 | Winnebago |
Joliet | 150,033 | Will and Kendall |
DeKalb | 40,220 | DeKalb |
Crystal Lake | 40,661 | McHenry |
Romeoville | 40,117 | Will |
Plainfield | 46,243 | Will |
Kankakee | 23,602 | Kankakee |
McHenry | 28,117 | McHenry |
Freeport | 23,413 | Stephenson |
Belvidere | 25,169 | Boone |
Woodstock | 25,665 | McHenry C |
New Lenox | 27,594 | Will |
Loves Park | 23,365 | Boone and Winnebago |
Machesney Park | 22,752 | Winnebago |
Lockport | 26,105 | Will |
History of 815 Area Code
Area code 815 started serving Illinois except for Chicago and Quad Cities in 1947 as its sole area code. However, the increase in demand for new numbers resulted in the establishment of the 779 area code, which was created in 2007 as an overlay to 815.
The 815 phone area code was one of Illinois’s first area codes, which currently has 17. Besides the mentioned ones, some are 217, 224, 309, 312, 331, 618, 630, 708, 773, 847 and 872.
815 Area Code: Exploring Its Regions’ Business Scenario
Illinois is the top state for operating any enterprise as it offers a diverse and dynamic environment with low corporate taxes and even has the 5th highest GDP in the nation.
Furthermore, the Prairie State ranked 8th among the states with the best business survival rates. In 2023, its business survival score was 57.18. Besides, the 1-year and 5-year business survival rates were 78.5% and 54.2%, respectively. This shows that the 815 phone area code has great potential for operating an enterprise; hence, choosing it can benefit your firm.
Likewise, Rockford, the state’s fifth-most populated city, also offers essential opportunities for newcomers. Unsurprisingly, Rockford’s cost of living is 5% and 13% lower than the state and national average, respectively.
The top industries within this region include healthcare, finance, technology, hospitality, education, construction, and professional services. These industries play a vital role in contributing to the region’s GDP and average household income of $69,196. Plus, Rockford's unemployment rate is 6.7%, comparatively less than Illinois’s other cities.
The top employers there include Amazon, HCLTech, The Home Depot, Fiat Chrysler Automobiles (Belvidere Assembly Plant), Rockford Public School District 205, and Collins Aerospace.

815 Area Code Number as a Communication Tool for Business Growth
Multiple Agents
Share a singular number with multiple members, which is helpful for resource sharing, knowledge upkeep, and management.
Queue Callback
Automatically call a user who contacted you when you were busy with another caller.
Do not Disturb Mode
Disable incoming calls during busy hours to focus on tasks or to finish ongoing calls, avoiding disturbances.
Pin Message
Pin important messages at the top so everyone is notified and will not miss any essential information.
Why Does Your Business Need an 815 Area Code Number?
Acquiring an 815 phone number benefits your firm by establishing trust, enhancing customer engagement, and many more.
Search Engine Optimization Benefits
Enhanced Customer Interaction
Budget-friendly Calls
Fosters Trust
How to Get a Phone Number with Area Code 815?
Obtaining a local 815 phone number just takes a few steps.
Sign up with Calilio.
Select a service plan that fits your needs.
Explore the “Numbers” section and purchase one.
Complete the payment.
Personalize its settings.
Already Have an 815 Phone Number for Business?
Number porting with Calilio is straightforward. Transfer your existing 815 area code number to enjoy advanced features.

Why Businesses Choose Calilio for Virtual 815 Area Code Number?
Calilio provides virtual numbers of over 100 countries and offers communication with 24/7 support, security, and quality calls.

24/7 Assistance
Our dedicated team is always ready to assist you, regardless of the time. Contact us in case of any trouble with your business phone system.
Top-tier Call Quality
Calilio’s numbers come with crystal clear voice quality to avoid misunderstanding, ensuring better connection.
Personalised Settings
Calilio allows you to tailor its advanced features to fit your unique business needs and requirements.
Security
Our cloud-based phone system automatically detects spam/scam messages and calls instantly to help you avoid fraudulent activities.
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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Nearby Area Codes of 815
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Frequently Asked Questions
What is the area code for Rockford, Illinois?
Is 815 a toll-free area code?
Can I port my existing 815 number to Calilio?
When did the 815 area code start?
Is 815 a cell phone prefix?
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