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Area code 618

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Title: Area code 618  
Author: World Heritage Encyclopedia
Language: English
Subject: List of North American Numbering Plan area codes, Area code 636, Area code 217, Area codes 270 and 364, Area code 573
Collection: Area Codes in Illinois, Area Codes in the United States
Publisher: World Heritage Encyclopedia

Area code 618

Area code 618 is the telephone area code serving southern Illinois, including the cities of Carbondale and Cairo. 618 also serves most of the Metro East region (the east side of the St. Louis area), including Alton, Belleville, East St. Louis, and Edwardsville. (The northern area of Metro East is in area code 217.)

618 was among the original North American area codes created in 1947. In 1954, most of Metro East switched from 217 to 618.

618 is the only one of Illinois' four original area codes to have never been split or overlaid. Under current projections, however, 618 is expected to "exhaust" by 2016.[1] The supply of numbers is further limited because much of 618 is part of the St. Louis LATA; some exchanges in Missouri's 314 and 636 are not available as "618-nxx" numbers.

Periodic proposals have been made for relief of the 618 area code. The most recent proposal has 618 overlaid with the unactivated 730.


  • Cities in the 618 area code 1
  • See also 2
  • External links 3
  • References 4

Cities in the 618 area code

See also

External links

  • NANPA Area Code Map of Illinois
  • List of exchanges from, 618 Area Code
Illinois area codes: 217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 815, 847, 872
North: 217
West: 314, 636, 573 Area code 618 East: 812
South: 573, 270
Missouri area codes: 314, 417, 573, 636, 660, 816
Kentucky area codes: 270/364, 502, 606, 859
Indiana area codes: 219, 260, 317, 574, 765, 812/930


  1. ^

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