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Naperville, IL Area Codes

Naperville, Illinois (population 153,114) uses area codes 630 and 331.

Area code630
Area code331
Time zoneCentral
Local time now…
NapervilleAuroraSchaumburgBolingbrookWheatonDowners GroveElmhurstLombardBartlettOswegoCarol StreamStreamwoodHanover ParkNaperville
Naperville and nearby cities in area code 630

Carriers with Naperville numbers

107 prefixes are assigned to the Naperville exchange: 40% mobile, 22% VoIP and cable, 37% landline.

CarrierPrefixes
AT&T (Illinois Bell)34
Verizon Wireless17
T-Mobile14
AT&T Mobility12
Verizon Business (MCImetro)7
Lumen (Level 3)6
Onvoy (Sinch)5
AT&T (Teleport)4

Area codes used in Naperville

Area codePrefixes serving NapervilleMain carriers in this code
63074AT&T (Illinois Bell), AT&T Mobility, T-Mobile
33133Onvoy (Sinch), T-Mobile, Verizon Wireless

Naperville phone number prefixes

Numbers starting with these first six digits were originally assigned to the Naperville exchange.

Nearby cities in area code 630

Questions

What is the area code for Naperville, IL?
Naperville uses 2 area codes: 630 and 331. They overlay each other, so all of them cover the whole city and you dial 10 digits for local calls.
What time zone is Naperville in?
Naperville is in the Central time zone.