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Area Code 331 - Lemont, IL

Below is the information for Area Code 331
General Information for Area Code 331
Country United States
State/Province Illinois
Major City Lemont
Time Zone Central

Phone directory of numbers beginning with Area Code 331 Prefixes

Prefix Primary City County Phone Type
331-332 Naperville, IL Dupage Cell Number
331-333 Naperville, IL Dupage Cell Number
331-422 Saint Charles, IL Kane Landline
331-425 Aurora, IL Kane Cell Number
331-431 Aurora, IL Kane Cell Number
331-442 Saint Charles, IL Kane Cell Number
331-444 Naperville, IL Dupage Landline
331-452 Aurora, IL Kane Cell Number
331-454 Aurora, IL Kane Cell Number
331-456 Roselle, IL Dupage Landline
331-457 Naperville, IL Dupage Cell Number
331-462 Lombard, IL Dupage Landline
331-465 West Chicago, IL Dupage Cell Number
331-472 Naperville, IL Dupage Cell Number
331-481 Downers Grove, IL Dupage Cell Number
331-551 Lombard, IL Dupage Cell Number
331-575 Aurora, IL Kane Cell Number
331-588 Saint Charles, IL Kane Cell Number
331-625 Downers Grove, IL Dupage Cell Number
331-642 Elmhurst, IL Dupage Cell Number
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Location Details

Area code is a type of numbering scheme used in telecommunication. It divides the territories of its member countries, the code is a three-digit code. The digits 0 and 1 applied for central office codes. Other digits were applied into geographic areas of the service territory.

  • 200: easily recognizable code (ERC)
  • 201: New Jersey
  • 202: Washington, D.C.
  • 203: Connecticut
    • and so on.

If you want to get more informatons of the areacode, Input an areacode into the above search area, get what you want.