Establish a local presence by purchasing a phone number in area code 618. Phone numbers in area code 618 are associated with the state of Illinois. There are currently at least 8 U.S. cities and 255 U.S. ZIP Codes associated with this telephone area code. In addition, there are at least 800 NXX's (the three-digit code that makes up digits 4-6 of a standard 10-digit U.S. phone number) available for use along with area code 618.
Phone numbers in area code 618 are associated with the state of Illinois.
The 618 area code currently has at least 8 cities in Illinois associated with it: East Alton, IL; Belleville, IL; Carbondale, IL; Collinsville, IL; East Saint Louis, IL; Edwardsville, IL; Granite City, IL; and O'Fallon, IL.
There are at least 255 U.S. ZIP codes associated with the area code 618 at this time (view all here).
The ZIP Code 62040 is the ZIP Code most frequently connected to the 618 area code. The 62040 ZIP Code is primarily associated with Madison County in the state of Illinois.
There are 39 counties associated with the 618 area code: Franklin County; Jackson County; Union County; Jefferson County; Madison County; St. Clair County; Saline County; Clinton County; Marion County; Calhoun County; Effingham County; Wabash County; Washington County; Fayette County; Hardin County; Pope County; Gallatin County; Wayne County; Macoupin County; Monroe County; Randolph County; Edwards County; Alexander County; Hamilton County; Massac County; Perry County; Richland County; Bond County; Jersey County; Pulaski County; Williamson County; Shelby County; White County; Greene County; Clay County; Crawford County; Jasper County; Johnson County; Lawrence County.
An NXX, which is also known as the a "central office code" or an "exchange", is the three-digit sequence that comprises digits 4-6 of a standard 10-digit U.S. phone number. The NXX is the second main part of a phone number that comes directly after the area code, e.g. (618)-839-xxxx.
Detailed information about area code 618 phone numbers. Establish a Illinois presence with a 618 number.