Area Code Box

Area code 618

Where is area code 618?

Collinsville, Carbondale and Belleville, Illinois

Local time: … (Central Time)

StateIllinois
CountryUnited States
Main citiesCollinsville, Carbondale and Belleville
Time zoneCentral Time
Overlay area codes730
In service since1947
Assigned prefixes786
Dialing format(618) XXX-XXXX · +1 618 XXX XXXX from abroad

Look up a 618 number

Enter a 3-digit area code or a full 10-digit number.

Cities and towns in area code 618

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 618.

Phone companies in area code 618

The carriers that hold the most 618 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

PrefixesCarrier
126Frontier North
111Illinois Bell Tel Co (AT&T)
98New Cingular Wireless PCS (AT&T)
62Verizon Wireless
46Level 3 Communications
40T-Mobile USA
38Citizens Telecom Co Illinois-Frontier Citizens -Il
27Onvoy

All 786 prefixes in area code 618

Pick the 3 digits after the area code to see that prefix’s city and carrier.

Area codes that overlay 618

Questions

Where is area code 618?
Area code 618 is in Illinois. It serves Collinsville, Carbondale, Belleville, Centralia and Granite City and 239 other cities and towns.
What time zone is area code 618 in?
Area code 618 uses Central Time.
What area codes overlay 618?
730 serves the same area as 618. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.
Is a call from area code 618 a scam?
The area code alone doesn’t tell you. Most calls from 618 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 618 number, let it go to voicemail.
When did area code 618 start?
618 went into service in 1947.
Can a 618 number be outside Illinois?
Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 618 caller can be anywhere.

Other area codes in Illinois

Area codeMain cities
217Springfield, Champaign and Decatur
224Northbrook, Arlington Hts and Des Plaines
309Peoria, Bloomington and Rock Island
312Chicgozn01, Wheeling and Oak Brook
331Aurora, Naperville and Downers Grove
447Danville, Springfield and Champaign
464Oak For So, Forest Park and La Grange
630Schaumburg, La Grange and Naperville
708La Grange, Chicago Heights and Oak Forest
773Harwood Heights, Chicgozn01 and Chicgozn02
779Rockford, Joliet and Momence
815Rockford, Joliet and Kankakee
847Northbrook, Schaumburg and Arlington Hts
861Peoria, Danvers and Moline
872Chicgozn01, Harwood Heights and Chicgozn04