618 Area Code: Location, Time Zone, History, and Scams

Quick Facts About the 618 Area Code

What Is the 618 Area Code?

The 618 area code is a telephone area code in the U.S. for southern Illinois. It is a local telephone number in communities such as Belleville, Carbondale, East St. Louis, Granite City, Alton, Edwardsville, Marion, Centralia, and the surrounding areas.

Probably, a 618 area code means that the phone number belongs to a southern Illinois area. However, because so many people rely on mobile phones, VoIP services, and business phone systems, it would not necessarily indicate that the person calling from a 618 phone number is from the area.

Where Is Area Code 618 Located?

Area code 618 covers all of southern Illinois and has an enormous service territory (including most cities, towns, rural areas, and parts of the St. Louis Metropolitan area on the Illinois side of the city).

The best cities with the top 618 area code are:

• Belleville
• Granite City
• O'Fallon
• Alton
• East St. Louis
• Carbondale
• Collinsville
• Edwardsville
• Marion
• Centralia
• Mount Vernon
• Effingham
• Cairo
• Herrin
• Harrisburg

Being the most densely populated city in the state and serving a high percentage of southern Illinois, it's frequently linked to area residents, area universities, area health care providers, area service businesses, local government agencies, and regional businesses.

What Time Zone Is the 618 Area Code In?

618 area code is in the Central Time Zone. The area has Central Standard Time (CST/UTC−6) and Central Daylight Time (CDT/UTC−5) during DST.

Businesses should factor in things like appointment reminders, sales call times, customer service hours, and local marketing times as they relate to Central Time.

Is 618 an Illinois Area Code?

Yes, 618 is an area code in the state of Illinois, and not just that, it's an area code in southern Illinois.

It does not link to Chicago and northern Illinois. The area codes serving the City of Chicago are 312, 773, and 872; 618 serves communities in southern Illinois.

History of the 618 Area Code

The 618 area code is rich in history and has a long history in the North American telephone numbering system.

In 1947, area code 618 was among the initial area codes in North America and covered southern Illinois, including East St. Louis and Carbondale.

Growth in demand over time: Landlines, businesses, mobile phones, fax lines, and Internet-based phone services all increased, and so has the demand for phone numbers in the area.

Number exhaustion: The number combinations that 618 could provide over the years were starting to run thin, and a solution was needed.

Overlay planning: Regulators decided not to break up the area code zones; they instead approved an overlay code.

2023: Area code 730 was introduced as an overlay to the same area in southern Illinois, thus giving more phone number availability to area code users without disrupting 618 users.

Today: 10-digit dialing is used on all residential calls, and both 618 and 730 service the same geographical area.

Overlay Codes 618: What Are They?

What Are the Overlay Codes for 618?

With an overlay in place, the new area code will cover the same geographic region as the old area code. Both the 618 and 730 were sold to the same communities in southern Illinois, and when the 730 was introduced, the 618 customers did not have to change their numbers. The new numbers in the area can now be assigned a prefix of 618 or 730, whichever is available.

Do You Need 10-Digit Dialing for 618?

10-digit dialing of all calls from the 618 area code is required. For local calls, you must enter the area code and seven digits for the telephone number, e.g., 618-XXX-XXXX.

This is true for the 730 overlay area as well. Businesses need to ensure that their websites, ads, business cards, appointment systems, CRMs, fax machines, call-forwarding number, and contacts use the full 10-digit number.

Is the 618 Area Code Legit or a Scam?

The 618 area code is a legal, real, and established area code that serves southern Illinois.

However, scammers can also spoof any number and place a fake call using a 618 Area Code from anywhere. Just because a call is from a certain area code doesn't mean that it is safe. Assess each call based on the caller's behavior, whether they are asking for anything, and whether it is suspicious.

Common 618 Scam Warning Signs

Be cautious if a 618 caller:

• Requests Social Security, banking, credit card, or login information.
• Rushes you to respond and take action without thinking or checking
• States that you owe money and requires immediate payment
• Asks to be paid with gift cards, wire transfer, cryptocurrency, or payment apps
• Declares that you've won a prize but have to pay a fee to collect it
• Impersonates an official or says he or she will have someone arrested or sued.
• Sends suspicious links through text message
• Does not give clear, verifiable information about the company
• Manipulates the crisis by using fear, urgency, or threats to take control of the discussion

If anything sounds off, hang up and use a number found on their official Website or through the appropriate company, bank, or agency.

What Are the Common Scams Linked With Spoofed 618 Numbers?

Calls using spoofed 618 phone numbers can include:

1. Government Impersonation Scams

The caller pretends to be from the IRS, the Social Security Administration, local police, a court office, or another official government department and says they will arrest or take legal action if the person does not pay immediately.

2. Bank and Credit Card Scams

The caller states that there is an issue with your account and requests your card number, PIN, online banking password, or one-time security code.

3. Utility Payment Scams

The caller pretends to be from an electric, gas, water, or Internet company and threatens to cut off your service if you don't pay immediately.

4. Prize and Lottery Scams

They say that you won money, a vacation, or a gift card, but there is an unavoidable tax, delivery charge, or processing fee that must be paid to release the prize. True gifts never ask for up-front payment.

5. Scams using jobs and job opportunities.

The caller pretends to offer a job, work-at-home opportunity, investment, or business coaching program and asks for an upfront fee or confidential personal documents.

6. Healthcare and insurance scams

Fraudulent calls impersonate Medicare offers, health insurance plans, medical billing requests, or prescription discount plans and ask for personal or financial information.

7. Local Service Scams

A 618 number may sound like it's in southern Illinois, so a scammer might use it as a phone number for a roofing company, HVAC service, home repair contractor, debt relief company, warranty company, or cleaning service, making them sound legitimate.

What Are the Benefits of a 618 Area Code Number?

For anyone or any business needing a local area code number in southern Illinois, a 618 area code is a handy tool.

Key benefits include:

• Creates a local identity to which southern Illinois customers relate
• Enhances trust because people are more likely to respond to the local area code that they know
• Especially beneficial for businesses serving Belleville and surrounding areas, including Carbondale, Edwardsville, Marion, and more.
• Helps local customers feel they are reaching out to a local, accessible provider
• Great for service businesses, clinics, law firms, real estate agents, contractors, and regional service teams.
• Works with mobile phones, landlines, and VoIP systems.
• Assists in distinguishing local business calls from personal/National calls

How a 618 Area Code Number Can Benefit Your Business’ Local SEO

If your business serves customers in southern Illinois, a 618 area code can help your local SEO efforts.

A telephone number by itself isn't a strong ranking factor, but it does help improve local trust and consistency. A local phone number on your website, as well as your Google Business Profile, directory listings, citations, and landing pages, strengthens the relevance of your business to the area in question.

• Higher local customer trust in southern Illinois
• Greater consistency in NAP details – name, address, and phone number are consistent on all online platforms
• More credible location pages for Belleville, Carbondale, Marion, Edwardsville and other local cities.
• Improved call tracking for region-specific marketing campaign.
• Increased customer response when it comes to businesses that are local.
• More authentic, local 'brands' in directory and map list.

Ideally, you want to use the same business name, address, and 618 phone number consistently across your Website, Google Business Profile, Yelp, Bing Places, Facebook, industry directories, and local citation sources.

Can You Get a New 618 Number Today?

It might be possible to get a new 618 number, but it can't be guaranteed. New customers in the area may be offered a 730 number instead of a 618, as the 730 overlay was added specifically to meet the need for numbers. If there is a particular 618 number that is important to you, you'll have the best chance of finding it by researching with several different service providers, such as carriers, VoIP services, and business phone systems.

Existing 618 numbers will remain valid, while new 618 numbers may be restricted based on the provider's available stock.

How Can You Get a New 618 Area Code Number?

You can get a 618 area code number through several options:

1. Contact a Local Phone Carrier

Traditional telephone operators may have 618 telephone numbers (landline, cell, or business service) available (depending on the region's inventory).

2. Use a VoIP Provider

VoIP services will often have the option to look up an area code and choose a local number. This is especially advantageous for remote teams, call forwarding lines, and customer support teams.

3. Try a Business Phone System

Virtual phone companies that provide call routing, voicemail, SMS, and CRM integration may have 618 numbers on hand.

4. Ask About Number Availability

Include in your inquiries if a 618 number is available when you register with any provider. Otherwise, a number in the 730 range for the same area of southern Illinois might be available.

5. Consider Buying or Porting a Number

In most cases, if you already have a 618 number from another provider, you can transfer it to your new provider. Some companies even obtain numbers through number marketplaces — in these cases, always use and stick with established, reputable providers.

Final Thoughts

The 618 area code is an old area code introduced in 1947 and serves major cities in southern Illinois, including Belleville, Carbondale, East St. Louis, Alton, Edwardsville, Marion, Centralia, and many other locations.

Today, 618 coexists with the 730 overlay code, and 10-digit dialing is required for all local calls. A 618 number can still offer real value to a business — especially if it is utilized consistently throughout a Website, directories, Google Business Profile listings, and local marketing campaigns, and provides a legitimate presence in southern Illinois.

Keep in mind, however, that it does not mean the call is legitimate just because it has a 618 number. Certainly, it's common for scammers to spoof local phone numbers, and you should never share any sensitive information unless you've confirmed it with someone you know.

Frequently Asked Questions (FAQs): 618 Area Code

1. Why do I get calls from an unknown 618 number?

Although the 618 area code is most commonly associated with southern Illinois, this does not necessarily mean the caller is in Illinois. Scammers may try to spoof a local number to make the call seem familiar and increase your likelihood of picking up.

2. Does a call from a 618 area code mean it's a scam?

Not necessarily. It may be a physical person, business, school, clinic, government office, or service provider in southern Illinois. But if there is no voicemail, calls are repeated without explanation, or there is pressure to call back immediately, be cautious.

3. Is it possible for someone to spoof a 618 caller ID?

Yes. Caller ID can be spoofed, meaning a scammer can make your phone show a 618 number, even if the call is coming from another state or country.

4. Why are there area codes like 618 used by scammers?

Locally looking numbers receive more responses, as people are more inclined to answer calls from local numbers. This is known as neighbor spoofing or local number spoofing.

5. Is it okay to call back an unknown 618 number?

But only if you can verify the number first. Look it up online, on the official Website of the business or agency involved, and do not call back numbers that seem suspicious or that have no verifiable results.

6. Is 618 still in use in Illinois?

Yes. 618 is an active area code that provides full service to southern Illinois, including Belleville, Carbondale, East St. Louis, Alton, Edwardsville, Marion and their surrounding areas.

7. What is the 730 area code and what is the relationship between the 730 area code and 618?

The 730 area code is an overlay of the 618 area code and thus shares the same geographic area in southern Illinois. There are now several new phone numbers in the area, some with a 618 prefix and others with a 730 prefix, depending on what's available.

8. Am I required to use the full area code for calls within the 618 area?

Yes. Ten-digit dialing is required in the 618/730 overlay area. When dialing local numbers, even within the same area code, you must dial the area code.

9. Does the 618 phone number mean that the business is located locally?

Not necessarily. However, a 618 area code may indicate a presence in southern Illinois, but various businesses may have a virtual or a Voice over Internet Protocol (VoIP) number to make them seem local even though they aren't.

10. Who should I call if someone asks for personal information over the phone (618)?

Hang up immediately. Don't give personal information, banking information, passwords, PINs, verification codes, or one-time codes to an unsolicited call. Send an official contact number on the company/agency's verified Website.

11. Is it common to get scam calls from 618 numbers?

As with all area codes, 618 numbers are susceptible to spoofing and fraudulent calls. But the area code itself is not the danger; suspicious caller behavior is the warning sign to look out for.

12) How can I stop getting recurring calls from 618 numbers?

Block the number, turn on the spam call filter in your phone or carrier settings, block calls from unknown numbers, and complain to your carrier or the FTC. Understand that blocking a number is not necessarily an effective way to prevent all spam calls, as bad guys often switch numbers.