Area Code 815 – Illinois

Area Code Details

Area Code

815

State / Province

Illinois

Country

United States

Time Zone

CT

IANA Zone

America/Chicago

Country Code

US

Cities & Counties

Winnebago County

Rockford

Will County

Joliet

Other Area Codes in Illinois (12)

• 217 — CT
• 224 — CT
• 309 — CT
• 312 — CT
• 331 — CT
• 618 — CT
• 630 — CT
• 708 — CT
• 773 — CT
• 779 — CT
• 847 — CT
• 872 — CT

Nearby Area Codes

• 814 — Pennsylvania (US • ET)
• 816 — Missouri (US • CT)
• 813 — Florida (US • ET)
• 817 — Texas (US • CT)
• 812 — Indiana (US • ET)
• 818 — California (US • PT)

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Frequently Asked Questions

What time zone is area code 815 in?

Area code 815 is in the CT time zone (America/Chicago). It serves Illinois, United States.

Where is area code 815 located?

Area code 815 covers Illinois in United States. Major cities include Rockford, Joliet.

What cities use area code 815?

Cities served by area code 815 include: Rockford, Joliet.

What is the current time in area code 815?

The live clock on this page shows the real-time current time for area code 815 (CT time zone). It updates every second.

Is area code 815 in the US or Canada?

Area code 815 is in United States (US), specifically in Illinois.

What other area codes are in Illinois?

Other area codes in Illinois include: 217, 224, 309, 312, 331, 618, 630, 708, 773, 779, 847, 872.

How do I call area code 815 from another time zone?

When calling area code 815, remember it's in the CT time zone. Use the time converter above to find the best time to call.

What counties does area code 815 cover?

Area code 815 covers: Winnebago County, Will County.