What is an Area Code? An area code is a section of a telephone number that denotes the broad area that the phone receiving the call is based in. Area codes were first introduced circa 1947 for operator use only. Area codes are three-digit numbers that represent Numbering Plan Areas (NPAs). The area code for a particular city or region is the series of numbers that you have to dial before someone’s number if you are making a phone call to that place from a different area. Area code 630 serves the state of Illinois.
The Table Below Shows the Towns and Cities That Use Area Code 630
| Addison Aurora Bartlett Batavia Bensenville Big Rock Bloomingdale Bolingbrook Boulder Hill Burr Ridge Campton Hills Carol Stream Clarendon Hills Darien | Downers Grove Elburn Elmhurst Geneva Glendale Heights Glen Ellyn Hanover Park Hinsdale Itasca Kaneville Lemont Lily Lake Lisle Lombard | Millbrook Montgomery Naperville North Aurora Oak Brook Oakbrook Terrace Oswego Plano Prestbury Roselle St. Charles Streamwood Sugar Grove Villa Park | Virgil Warrenville Wayne West Chicago Westmont Wheaton Willowbrook Winfield Wood Dale Woodridge Yorkville |