(618) Area Code Business Phone Numbers
Get a local 618 number tied to Belleville and the rest of southern Illinois, from the Metro East suburbs to Carbondale. The 618 code has been in use since 1947, so it carries real roots with the people who grew up calling it home.
Get a 618 NumberAbout the 618 Area Code
The 618 is one of the state's three original 1947 area codes, and it quietly held the whole southern third of Illinois by itself for more than seventy years. That changed on July 7, 2023, when the 730 overlay was introduced to keep up with number demand [2]. If you already have a 618 line, it stays yours, but new numbers in the region may come out as 730.
Belleville sits at the heart of the Metro East, with a diversified economy that leans on healthcare, government, and the nearby Scott Air Force Base, which supports more than 13,000 personnel in the surrounding area [1]. Downtown is a classic Main Street with brick sidewalks, locally owned restaurants, and a steady foot-traffic crowd that still prefers calling a real local shop over clicking around on a chain site.
A 618 number tells customers you are part of that scene, not a call center two time zones away. The region covers roughly 126 municipalities [2], so one Tonet line can field calls from a plumber in Granite City, a dental office in O'Fallon, and a shop owner in Carbondale without any of them wondering who is actually picking up.
Cities Served by the 618 Area Code
The 618 stretches from the East St. Louis Metro East corridor down through the Shawnee Hills. Here are the main cities businesses on Tonet are calling from.
Features Built for Belleville Businesses
Everything you need to run a professional phone line without the overhead of a desk phone system. These are the tools 618 shops use most.
Auto Attendant
Route callers to the right person without a receptionist. Handy when the owner is on a job site in Edwardsville and the shop manager is covering walk-ins.
Call Recording
Keep a record of quotes, service calls, and tricky customer conversations. Useful for training new hires and settling the occasional dispute.
AI Transcription
Every voicemail arrives as readable text, so you can skim it between appointments instead of dialing in to listen.
Business SMS
Text customers from your 618 number for appointment reminders and quick confirmations. People read texts faster than they return calls.
Mobile App
Answer the business line from your phone without giving out your personal cell. Works the same whether you are in Belleville or on the road.
Daily Billing
Plans start at $10 per user per month, billed daily, with no contracts. If you add seasonal help, you only pay for the days they are on the line.
Frequently Asked Questions
Can I still get a 618 number, or is it only 730 now?
You can still get 618 numbers through Tonet when inventory is available. The 730 overlay was added in 2023 to free up more combinations, but 618 is still the preferred code for established southern Illinois businesses.
How much does a 618 business line cost?
Plans start at $10 per user per month, billed daily, and additional phone numbers are $2.50 per month each. No annual contract and no setup fee.
Can I port my existing 618 number to Tonet?
Yes. If you already have a 618 number with another carrier, you can port it over without changing the digits your customers already know.
Will my 618 number work if I move out of the area?
Yes. The number is tied to your Tonet account, not a physical line, so you can take it to Chicago, Nashville, or anywhere else and keep ringing the same way.
Can multiple employees share one 618 number?
Yes. Use the auto attendant or ring groups to send calls to the right teammate, whether they are in the Belleville office or working from home in Collinsville.
Claim Your 618 Number Today
Set up a southern Illinois business line in a few minutes and start taking calls the same day.
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