Area Code 630

Naperville, Illinois · CST/CDT (UTC-6) · United States

Area Code
630
City
Naperville, IL
Time Zone
CST/CDT
UTC Offset
UTC-6 / UTC-5 DST
DST
Observed
Introduced
1996

Where Is Area Code 630?

Naperville, Aurora, Wheaton, Downers Grove — western Chicago suburbs (DuPage County)

DuPage County. Naperville consistently ranked among best places to live.

Major Cities & Neighborhoods
NapervilleAuroraWheatonDowners GroveElmhurst

Time Zone for Area Code 630

Standard Time
CST (UTC-6)
Daylight Time
CDT (UTC-5)
DST 2026 Start
March 8, 2026
DST 2026 End
November 1, 2026
Country
United States
IANA Zone
America/Chicago

Frequently Asked Questions

Where is area code 630?

Area code 630 is located in Naperville, Illinois (United States). It covers Naperville, Aurora, Wheaton, Downers Grove — western Chicago suburbs (DuPage County).

What time zone is area code 630 in?

Area code 630 (Naperville, Illinois) is in the CST/CDT time zone. Standard time is UTC-6 and UTC-5 during Daylight Saving Time.

Is area code 630 a scam?

Area code 630 is a legitimate NANPA-assigned code serving Naperville, Illinois. However, scammers can spoof any area code. If you receive an unexpected call from (630), verify the caller before sharing personal information.

What time is it in area code 630 right now?

Area code 630 follows CST/CDT (UTC-6). See the live clock at whattime.city/chicago/ for the exact current time in Naperville.

When was area code 630 introduced?

Area code 630 was introduced in 1996. DuPage County. Naperville consistently ranked among best places to live.