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Search Virtual Phone Numbers with 618 Area Code
Explore Calilio’s available packages and select an ideal 618 area code number to boost customer trust and credibility in Belleville, Marion, and Edwardsville.
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618 Area Code Location: Where Is It?
618 phone area code is situated in Illinois’s southern part. It serves major cities like Belleville, Centralia, Edwardsville, Marion, Alton, and Cahokia.
Residents in the region observe the Central Time Zone. CT is 6 hours behind Coordinated Universal Time (UTC) during standard time, which becomes UTC-5 during daylight saving time.
Additionally, 618 encompasses 39 other counties, including Jackson, Williamson, Franklin, Marion, and Jefferson.
Cities | Total Population | County |
Belleville | 42,404 | St. Clair |
Granite City | 27,549 | Madison |
Alton | 25,676 | Madison |
Cahokia | 12,096 | St. Clair |
Centralia | 12,182 | Marion |
Edwardsville | 26,808 | Madison |
Marion | 16,729 | Williamson |
Metropolis | 5,969 | Massac |
Vandalia | 7,458 | Fayette |
Carbondale | 21,857 | Jackson |
Godfrey | 17,825 | Madison |
Columbia | 10,999 | Monroe |
Robinson | 7,150 | Crawford |
Mount Vernon | 14,600 | Jefferson |
East St. Louis | 18,469 | St. Clair |
History of 618 Area Code
Area code 618 was implemented on 1 January 1947 as one of the US’s 86 original area codes. It initially served the state’s southern part, including East St. Louis and Carbondale. After 7 years, most of St. Louis’s Metro East switched from the 217 area code to 618.
Later, the 730 area code was added to the North American Numbering Plan (NANP) to ensure telephone number capacity. It was created as an overlay to supplement the 618 numbers.
Currently, Illinois has a total of 13 area codes.
Exploring 618 Area Code: Business Scenario in Belleville, Illinois
Belleville is the most populated city in Illinois, with more than 42K+ population. The city’s economy is strong and diverse, with thriving manufacturing, healthcare, education, military, retail, and services industries. Moreover, the employment rate of Belleville was 61.0% in 2022.
Historically known as the “Stove Capital of the World,” it has a strong manufacturing sector, with key manufacturers including Empire Comfort System, The ROHO Group, and TerraSource Global. Additionally, Memorial Hospital and St. Elizabeth Hospital are major healthcare sectors with 2,308 and 1,353 employees, respectively.
Well, according to the American Community Survey, Belleville’s median household income was $60,573, and there were 20,573 housing units in 2022, which has likely increased.
Overall, the combination of supportive infrastructure, distinct opportunities, and a growing community makes Belleville the best choice for starting a new business. So, a 618 phone number can be quite beneficial.

618 Area Code Number as a Communication Tool for Business Growth
Call Analytics
Track incoming and outgoing calls for quality assurance and error detection.
Sentiment Analysis
Analyze customer emotions during conversations, whether positive, negative, or neutral, for informed decision-making.
Call Blocking
Block unwanted and spam calls to minimize disruption during interaction.
Pin Messages
Pin important messages on top for better visibility of crucial details or updates.
Why Does Your Business Need a 618 Area Code Number?
Numbers starting with the 618 area code symbolize your business identity in Belleville, Illinois. Using it can create customer trust and a regional presence in the neighboring territories.
Customer Trust
Local SEO
Target Multiple Location
Affordable Calling Charges
How to Get a Phone Number with Area Code 618?
Follow these simple steps and get your preferred 618 phone area code number from Calilio.
Sign up with Calilio.
Pick an ideal package.
Buy a 618 phone number.
Complete the payment process.
Activate your number and customize its settings.
Wanna Enjoy Advanced Communication Features?
Port your existing 618 phone number to Calilio and take advantage of advanced services like sentiment analysis, call transcription, and more.

Why Businesses Choose Calilio for Virtual 618 Number?
With our range of features and high-security measurements, organizations can streamline operations and expand business communication.

Robust Security
Our security features, such as end-to-end encryption and multiple-way authentication, protect sensible data from attackers and breaches.
Low Cost Plans
Calilio provides different subscription packages at affordable prices based on business requirements, offering advanced Voice over Internet Protocol (VoIP) features.
User-Friendly Interface
Users can effectively utilize the communication platform and maximize productivity with our simple and easy interface.
Fast Setup
Calilio is easy to set up, and you can quickly start using your obtained phone number with the area code 618.
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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Frequently Asked Questions
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